Commit Graph

3134 Commits

Author SHA1 Message Date
Dan Gohman 69cc2cbbff Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
llvm-svn: 60487
2008-12-03 18:15:48 +00:00
Rafael Espindola cda011b5ad Fix bug 3140.
Print a single parameter .file directive if we have an ELF target.

llvm-svn: 60480
2008-12-03 11:01:37 +00:00
Dan Gohman ae3ba45eb2 Add a sanity-check to tablegen to catch the case where isSimpleLoad
is set but mayLoad is not set. Fix all the problems this turned up.

Change code to not use isSimpleLoad instead of mayLoad unless it
really wants isSimpleLoad.

llvm-svn: 60459
2008-12-03 02:30:17 +00:00
Duncan Sands 3d960941b1 There are no longer any places that require a
MERGE_VALUES node with only one operand, so get
rid of special code that only existed to handle
that possibility.

llvm-svn: 60349
2008-12-01 11:41:29 +00:00
Duncan Sands 6ed40141f7 Change the interface to the type legalization method
ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.

llvm-svn: 60348
2008-12-01 11:39:25 +00:00
Duncan Sands dc2dac181a If the type legalizer actually legalized anything
(this doesn't happen that often, since most code
does not use illegal types) then follow it by a
DAG combiner run that is allowed to generate
illegal operations but not illegal types.  I didn't
modify the target combiner code to distinguish like
this between illegal operations and illegal types,
so it will not produce illegal operations as well
as not producing illegal types.

llvm-svn: 59960
2008-11-24 14:53:14 +00:00
Matthijs Kooijman 75339657bd Fix comments.
llvm-svn: 59958
2008-11-24 11:44:00 +00:00
Evan Cheng 977e7be9d4 Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.
llvm-svn: 59953
2008-11-24 07:34:46 +00:00
Duncan Sands 8d6e2e13d5 Rename SetCCResultContents to BooleanContents. In
practice these booleans are mostly produced by SetCC,
however the concept is more general.

llvm-svn: 59911
2008-11-23 15:47:28 +00:00
Anton Korobeynikov bff4b37af5 Make a convenient helper for printing offsets.
llvm-svn: 59872
2008-11-22 16:15:34 +00:00
Dan Gohman 60cb69e665 Experimental post-pass scheduling support. Post-pass scheduling
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676
2008-11-19 23:18:57 +00:00
Dan Gohman 0b2732598c Add more const qualifiers. This fixes build breakage from r59540.
llvm-svn: 59542
2008-11-18 19:49:32 +00:00
Dale Johannesen aae3a4f864 Move some former testcases (low-probability codegen
optimizations) into this wishlist.

llvm-svn: 59455
2008-11-17 18:56:34 +00:00
Oscar Fuentes ba4eb2a9db Adds extern "C" ints to the .cpp files that use RegisterTarget, as
well as 2 files that use "Registrator"s. These are to be used by the
MSVC builds, as the Win32 linker does not include libs that are
otherwise unreferenced, even if global constructors in the lib have
side-effects.

Patch by Scott Graham!

llvm-svn: 59378
2008-11-15 21:36:30 +00:00
Anton Korobeynikov 9833d8c369 Temporary revert my last commit: it seems it's triggering some subtle bug in backend
and breaks llvm-gcc

llvm-svn: 58926
2008-11-08 23:05:05 +00:00
Anton Korobeynikov 09f51d1fd4 Factor out offset printing code into generic AsmPrinter.
FIXME: it seems, that most of targets don't support
offsets wrt CPI/GlobalAddress', was it intentional?

llvm-svn: 58917
2008-11-08 17:21:38 +00:00
Evan Cheng b31a717527 Rename startFunctionStub to startGVStub since it's also used for GV non-lazy ptr.
llvm-svn: 58897
2008-11-08 08:02:53 +00:00
Dale Johannesen 160be0ffda Make FP tests requiring two compares work on PPC (PR 642).
This is Chris' patch from the PR, modified to realize that
SETUGT/SETULT occur legitimately with integers, plus
two fixes in LegalizeDAG to pass a valid result type into
LegalizeSetCC.  The argument of TLI.getSetCCResultType is
ignored on PPC, but I think I'm following usage elsewhere.

llvm-svn: 58871
2008-11-07 22:54:33 +00:00
Dan Gohman cb0df597e0 Flush the raw_ostream after emitting the assembly for a function.
This is a temporary fix for the -print-emitted-asm option, where
errs() is used as the stream, in the case where other code is
using stderr without using errs()' buffer. Hopefully soon we'll
fix errs() to be non-buffered instead. Patch by Preston Gurd.

llvm-svn: 58859
2008-11-07 19:49:17 +00:00
Dan Gohman 7a638a8c7e Reintroduce a comment that was removed with the AddToISelQueue
changes.

llvm-svn: 58760
2008-11-05 17:16:24 +00:00
Dan Gohman f14b77ebf1 Eliminate the ISel priority queue, which used the topological order for a
priority function. Instead, just iterate over the AllNodes list, which is
already in topological order. This eliminates a fair amount of bookkeeping,
and speeds up the isel phase by about 15% on many testcases.

The impact on most targets is that AddToISelQueue calls can be simply removed.

In the x86 target, there are two additional notable changes.

The rule-bending AND+SHIFT optimization in MatchAddress that creates new
pre-isel nodes during isel is now a little more verbose, but more robust.
Instead of either creating an invalid DAG or creating an invalid topological
sort, as it has historically done, it can now just insert the new nodes into
the node list at a position where they will be consistent with the topological
ordering.

Also, the address-matching code has logic that checked to see if a node was
"already selected". However, when a node is selected, it has all its uses
taken away via ReplaceAllUsesWith or equivalent, so it won't recieve any
further visits from MatchAddress. This code is now removed.

llvm-svn: 58748
2008-11-05 04:14:16 +00:00
Duncan Sands 1310574b0f Shift amounts should have type getShiftAmountTy
(i32 for PPC, not i8).  Correct this, and some
formatting while there.

llvm-svn: 58451
2008-10-30 19:28:32 +00:00
Dale Johannesen 98aa9d3e49 Add a RM pseudoreg for the rounding mode, which
allows ppcf128->int conversion to work with
DeadInstructionElimination.  This is now turned
off but RM is harmless.  It does not do a complete
job of modeling the rounding mode.

Revert marking MFCR as using all 7 CR subregisters;
while correct, this caused the problem in PR 2964,
plus the local RA crash noted in the comments.
This was needed to make DeadInstructionElimination,
but as we are not running that, it is backed out
for now.  Eventually it should go back in and the
other problems fixed where they're broken.

llvm-svn: 58391
2008-10-29 18:26:45 +00:00
Duncan Sands 4068a7f31e Fix darwin ppc llvm-gcc build breakage: intercept
ppcf128 to i32 conversion and expand it into a code
sequence like in LegalizeDAG.  This needs custom
ppc lowering of FP_ROUND_INREG, so turn that on and
make it work with LegalizeTypes.  Probably PPC should
simply custom lower the original conversion.

llvm-svn: 58329
2008-10-28 15:00:32 +00:00
David Greene ce2a938186 Have TableGen emit setSubgraphColor calls under control of a -gen-debug
flag.  Then in a debugger developers can set breakpoints at these calls
to see waht is about to be selected and what the resulting subgraph
looks like.  This really helps when debugging instruction selection.

llvm-svn: 58278
2008-10-27 21:56:29 +00:00
Dale Johannesen 71f361e758 Mark MFCR as reading all condition code registers.
Prevents some more overzealous deletions (mostly
in AltiVec code).

llvm-svn: 58121
2008-10-24 22:08:01 +00:00
Dale Johannesen 3863f8e725 Rewrite logic to figure out whether LR needs to
be saved/restored in the prolog/epilog.  We need
to do this iff something in the function stores
into it.

llvm-svn: 58116
2008-10-24 21:24:23 +00:00
Dale Johannesen e395d78657 Mark defs and uses of CTR and LR correctly.
Prevents DeadMachineInstructionElim from thinking
things like MTCTR are dead (fixes massive
testsuite breakage at -O0).

llvm-svn: 58043
2008-10-23 20:41:28 +00:00
Oscar Fuentes f3c03b02dc CMake: Turned some libraries into partially linked objects. Corrected
names of LLVMCore and ARMCodeGen.

llvm-svn: 57943
2008-10-22 02:51:53 +00:00
Dan Gohman c14e5227f0 Disable constant-offset folding for PowerPC, as the PowerPC target
isn't yet prepared for it.

llvm-svn: 57886
2008-10-21 03:41:46 +00:00
Dan Gohman e33afda4fa Trim #includes.
llvm-svn: 57649
2008-10-16 20:18:31 +00:00
Duncan Sands dc84511146 Fix warnings about mb/me being potentially used
uninitialized in these functions with gcc-4.3.

llvm-svn: 57635
2008-10-16 13:02:33 +00:00
Dan Gohman 33332bce17 Const-ify several TargetInstrInfo methods.
llvm-svn: 57622
2008-10-16 01:49:15 +00:00
Evan Cheng 07d53b1d33 Rename LoadX to LoadExt.
llvm-svn: 57526
2008-10-14 21:26:46 +00:00
Dan Gohman 9c4b7d5c4f Fix command-line option printing to print two spaces where needed,
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.

llvm-svn: 57521
2008-10-14 20:25:08 +00:00
Chris Lattner 2753955fc0 Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as
parameters instead of raw Constants.  This prevents the constants from
being selected by the isel pass, fixing PR2735.

llvm-svn: 57385
2008-10-11 22:08:30 +00:00
Duncan Sands 26ff6f9c54 Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.

llvm-svn: 57291
2008-10-08 07:23:46 +00:00
Anton Korobeynikov d2aded08ac Fix weird think-o and unbreak build on all gcc-3.4.x-based platforms (e.g. mingw)
llvm-svn: 57106
2008-10-05 08:53:29 +00:00
Dan Gohman 2c836cf187 Avoid creating two TargetLowering objects for each target.
Instead, just create one, and make sure everything that needs
it can access it. Previously most of the SelectionDAGISel
subclasses all had their own TargetLowering object, which was
redundant with the TargetLowering object in the TargetMachine
subclasses, except on Sparc, where SparcTargetMachine
didn't have a TargetLowering object. Change Sparc to work
more like the other targets here.

llvm-svn: 57016
2008-10-03 16:55:19 +00:00
Dan Gohman 0d1e9a8e04 Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.

llvm-svn: 57006
2008-10-03 15:45:36 +00:00
Devang Patel 1b76f2c40b Remove OptimizeForSize global. Use function attribute optsize.
llvm-svn: 56937
2008-10-01 23:18:38 +00:00
Duncan Sands 08d91178e9 Rename isWeakForLinker to mayBeOverridden. Use it
instead of hasWeakLinkage in a bunch of optimization
passes.

llvm-svn: 56782
2008-09-29 11:25:42 +00:00
Bill Wendling c966a737c5 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc:
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...

llvm-svn: 56703
2008-09-26 22:10:44 +00:00
Dan Gohman 6e0548336a Rename ConstantSDNode's getSignExtended to getSExtValue, for
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.

llvm-svn: 56700
2008-09-26 21:54:37 +00:00
Evan Cheng d77cbe8947 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0.
llvm-svn: 56683
2008-09-26 19:48:35 +00:00
Dale Johannesen 0e32a2c935 Add "inreg" field to CallSDNode (doesn't increase
its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.

llvm-svn: 56677
2008-09-26 19:31:26 +00:00
Oscar Fuentes cdc95498f5 CMake: Builds all targets.
llvm-svn: 56641
2008-09-26 04:40:32 +00:00
Bill Wendling 374d7f2b16 If we have a function with an unreachable statement such that the ending debug
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
2008-09-26 00:28:12 +00:00
Anton Korobeynikov 87001fd6fd Reapply 56585:56589 with proper fix for some gcc versions
llvm-svn: 56621
2008-09-25 21:00:33 +00:00
Evan Cheng 84301390ae Temporarily backing out 56585:56589 to unbreak the build.
llvm-svn: 56607
2008-09-25 07:38:08 +00:00
Anton Korobeynikov 3097c10347 Minor cleanup
llvm-svn: 56588
2008-09-24 22:22:54 +00:00
Anton Korobeynikov 237f087eb9 Get rid of virtual inheritance for PPC TAI
llvm-svn: 56586
2008-09-24 22:22:03 +00:00
Anton Korobeynikov 8e7b93938d Get rid of ReadOnlySection duplicate
llvm-svn: 56582
2008-09-24 22:20:27 +00:00
Anton Korobeynikov 5906234c1d Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection
llvm-svn: 56580
2008-09-24 22:18:54 +00:00
Anton Korobeynikov f8dc8aac3c Get rid of duplicate char*/Section* TextSection
llvm-svn: 56574
2008-09-24 22:15:21 +00:00
Anton Korobeynikov 076e905b94 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic.
llvm-svn: 56573
2008-09-24 22:14:23 +00:00
Anton Korobeynikov 69ff51baa0 Drop obsolete hook and change all usage to new interface
llvm-svn: 56572
2008-09-24 22:13:07 +00:00
Evan Cheng e0add20c1b Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc.
llvm-svn: 56526
2008-09-24 00:05:32 +00:00
Devang Patel ba3fa6c6e1 s/ParameterAttributes/Attributes/g
llvm-svn: 56513
2008-09-23 23:03:40 +00:00
Dan Gohman ed1cf1a8f1 Fix these enums' starting values to reflect the way that
instruction opcodes are now numbered. No functionality change.

llvm-svn: 56497
2008-09-23 18:42:32 +00:00
Dale Johannesen 7a74e71489 Make log, log2, log10, exp, exp2 use Expand by
default.

llvm-svn: 56471
2008-09-22 21:57:32 +00:00
Bill Wendling 95e1af217f Add trampoline support to PPC. GCC simply calls the "__trampoline_setup"
function with appropriate parameters. This allows us to support blocks on PPC.

llvm-svn: 56267
2008-09-17 00:30:57 +00:00
Bill Wendling 24c79f28b1 Reverting r56249. On further investigation, this functionality isn't needed.
Apologies for the thrashing.

llvm-svn: 56251
2008-09-16 21:48:12 +00:00
Bill Wendling 8bc392fb1d - Change "ExternalSymbolSDNode" to "SymbolSDNode".
- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.

llvm-svn: 56249
2008-09-16 21:12:30 +00:00
Dan Gohman 38453eebdc Remove isImm(), isReg(), and friends, in favor of
isImmediate(), isRegister(), and friends, to avoid confusion
about having two different names with the same meaning. I'm
not attached to the longer names, and would be ok with
changing to the shorter names if others prefer it.

llvm-svn: 56189
2008-09-13 17:58:21 +00:00
Dan Gohman d3fe174c53 Define CallSDNode, an SDNode subclass for use with ISD::CALL.
Currently it just holds the calling convention and flags
for isVarArgs and isTailCall.

And it has several utility methods, which eliminate magic
5+2*i and similar index computations in several places.

CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle
nodes that are not CSE'd gracefully.

llvm-svn: 56183
2008-09-13 01:54:27 +00:00
Dan Gohman effb894453 Rename ConstantSDNode::getValue to getZExtValue, for consistency
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.

llvm-svn: 56159
2008-09-12 16:56:44 +00:00
Dale Johannesen e5ca04e70d Succumb utterly to compatibility and implement
__sync_fetch_and_nand as ANDC, even though that's
not what nand means.

llvm-svn: 56087
2008-09-11 02:15:03 +00:00
Dale Johannesen f080225490 Fix logic for not emitting no-dead-strip for some
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
2008-09-09 01:21:22 +00:00
Owen Anderson d41c7160d0 Fix constant pool loads, and remove broken versions of addConstantPoolReference.
llvm-svn: 55868
2008-09-06 01:11:01 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Dan Gohman 634412fe35 Clean up uses of TargetLowering::getTargetMachine.
llvm-svn: 55769
2008-09-04 15:39:15 +00:00
Dale Johannesen da2d80688b Add intrinsics for log, log2, log10, exp, exp2.
No functional change (and no FE change to generate them).

llvm-svn: 55753
2008-09-04 00:47:13 +00:00
Dale Johannesen bc69829b22 Fix some bugs in the code sequences for atomics.
llvm-svn: 55643
2008-09-02 20:30:23 +00:00
Evan Cheng 34f3a962b0 Change getBinaryCodeForInstr prototype. First operand MachineInstr& should be const. Make corresponding changes.
llvm-svn: 55623
2008-09-02 06:51:36 +00:00
Gabor Greif 81d6a38434 fix a bunch of 80-col violations
llvm-svn: 55588
2008-08-31 15:37:04 +00:00
Bill Wendling 62cf24343c Expand for ROTR with MVT::i64.
Dale, Could you please review this?

llvm-svn: 55581
2008-08-31 02:53:19 +00:00
Dale Johannesen 340d264f52 Add ppc partial-word ATOMIC_CMP_SWAP.
llvm-svn: 55554
2008-08-30 00:08:53 +00:00
Dale Johannesen f0a88d6b2a Add partial word version of ATOMIC_SWAP.
llvm-svn: 55546
2008-08-29 18:29:46 +00:00
Gabor Greif f304a7aa4d erect abstraction boundaries for accessing SDValue members, rename Val -> Node to reflect semantics
llvm-svn: 55504
2008-08-28 21:40:38 +00:00
Mon P Wang 1e137300bd In lowering SELECT_CC, removed cases where we can't flip the true and false when the compare value has a NaN
llvm-svn: 55499
2008-08-28 21:04:05 +00:00
Dale Johannesen a32affb9ba Implement partial-word binary atomics on ppc.
llvm-svn: 55478
2008-08-28 17:53:09 +00:00
Gabor Greif abfdf928d8 disallow direct access to SDValue::ResNo, provide a getter instead
llvm-svn: 55394
2008-08-26 22:36:50 +00:00
Owen Anderson 27fb3dcbc7 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.

llvm-svn: 55375
2008-08-26 18:03:31 +00:00
Dale Johannesen d4eb0521e4 Implement 32 & 64 bit versions of PPC atomic
binary primitives.

llvm-svn: 55343
2008-08-25 22:34:37 +00:00
Dale Johannesen 765065c982 Remove PPC-specific lowering for atomics; the
generic stuff works fine.

Mark rewritten cmp-and-swap as not using CR1.

llvm-svn: 55336
2008-08-25 21:09:52 +00:00
Dale Johannesen 166d6cb1fa It's important for the cmp-and-swap to balance
loads and stores but it's even more important for
it to store the right value.:(

llvm-svn: 55319
2008-08-25 18:53:26 +00:00
Dan Gohman eb0cee91f6 Move the point at which FastISel taps into the SelectionDAGISel
process up to a higher level. This allows FastISel to leverage
more of SelectionDAGISel's infastructure, such as updating Machine
PHI nodes.

Also, implement transitioning from SDISel back to FastISel in
the middle of a block, so it's now possible to go back and
forth. This allows FastISel to hand individual CallInsts and other
complicated things off to SDISel to handle, while handling the rest
of the block itself.

To help support this, reorganize the SelectionDAG class so that it
is allocated once and reused throughout a function, instead of
being completely reallocated for each block.

llvm-svn: 55219
2008-08-23 02:25:05 +00:00
Dale Johannesen ed86f689cb Implement __sync_synchronize on ppc32. Patch by Gary Benson.
llvm-svn: 55186
2008-08-22 17:20:54 +00:00
Dale Johannesen dec51704ed Rewrite ppc code generated for __sync_{bool|val}_compare_and_swap
so that lwarx and stwcx are always executed the same number of times.
This is important for performance, I'm told.

llvm-svn: 55163
2008-08-22 03:49:10 +00:00
Dan Gohman d3582c9bda Simplify SelectRoot's interface, and factor out some common code
from all targets.

llvm-svn: 55124
2008-08-21 16:36:34 +00:00
Owen Anderson 9371964f47 Use raw_ostream throughout the AsmPrinter.
llvm-svn: 55092
2008-08-21 00:14:44 +00:00
Anton Korobeynikov 19fed1eb3d Use correct name for PPC codegen library
llvm-svn: 54888
2008-08-17 13:54:44 +00:00
Anton Korobeynikov 28dc9d0ad9 Factor out asmprinter out of ppc
llvm-svn: 54887
2008-08-17 13:54:28 +00:00
Anton Korobeynikov 16d5d3fba7 PPC/Linux normally uses named section for bss
llvm-svn: 54847
2008-08-16 12:59:02 +00:00
Anton Korobeynikov c3f3aea666 Use proper strings section name for PPC
llvm-svn: 54846
2008-08-16 12:58:46 +00:00
Owen Anderson 4f6bf04616 Convert uses of std::vector in TargetInstrInfo to SmallVector. This change had to be propoagated down into all the targets and up into all clients of this API.
llvm-svn: 54802
2008-08-14 22:49:33 +00:00
Nate Begeman f69d13b60a Implement ISD::TRAP support on PPC
llvm-svn: 54644
2008-08-11 17:36:31 +00:00
Anton Korobeynikov ed47329174 Handle visibility printing with all generality. Remove bunch of duplicate code.
llvm-svn: 54540
2008-08-08 18:25:07 +00:00
Anton Korobeynikov f1f8aa3e50 Use chars, where possible
llvm-svn: 54539
2008-08-08 18:24:10 +00:00
Anton Korobeynikov c9ad17c3da Convert PPC/Linux to new section printing stuff
llvm-svn: 54538
2008-08-08 18:23:49 +00:00
Anton Korobeynikov 5b5d8bcd88 Switch PPC/Darwin to new section handling stuff
llvm-svn: 54537
2008-08-08 18:23:25 +00:00
Anton Korobeynikov 7c20ede085 Cleanup
llvm-svn: 54536
2008-08-08 18:22:59 +00:00
Dale Johannesen c31eb205c1 Add a flag to disable jump table generation (all
switches use the binary search algorithm) for
environments that don't support it.  PPC64 JIT
is such an environment; turn the flag on for that.

llvm-svn: 54248
2008-07-31 18:13:12 +00:00
Dan Gohman 2ce6f2ad5e Rename SDOperand to SDValue.
llvm-svn: 54128
2008-07-27 21:46:04 +00:00
Dan Gohman 91e5dcb680 Tidy SDNode::use_iterator, and complete the transition to have it
parallel its analogue, Value::value_use_iterator. The operator* method
now returns the user, rather than the use.

llvm-svn: 54127
2008-07-27 20:43:25 +00:00
Evan Cheng 0f0aee213f Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory (all of the parameter registers are used) are loaded from sp offsets that were off by 4.
llvm-svn: 53979
2008-07-24 08:17:07 +00:00
Duncan Sands b0e3938651 Add VerifyNode, a place to put sanity checks on
generic SDNode's (nodes with their own constructors
should do sanity checking in the constructor).  Add
sanity checks for BUILD_VECTOR and fix all the places
that were producing bogus BUILD_VECTORs, as found by
"make check".  My favorite is the BUILD_VECTOR with
only two operands that was being used to build a
vector with four elements!

llvm-svn: 53850
2008-07-21 10:20:31 +00:00
Anton Korobeynikov bc780e3441 Unbreak build: 'DarwinTargetAsmInfo' was already taken as PPC TAI flavour.
llvm-svn: 53801
2008-07-19 21:44:57 +00:00
Duncan Sands 2a28791789 Make sure custom lowering for LegalizeTypes
returns a node with the right number of
return values.  This fixes codegen of
Generic/cast-fp.ll, Generic/fp_to_int.ll
and PowerPC/multiple-return-values.ll
when using -march=ppc32 -mattr=+64bit.

llvm-svn: 53794
2008-07-19 16:26:02 +00:00
Dan Gohman 1705968102 Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk
replacement of multiple values. This is slightly more efficient
than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically
could be optimized even further. However, an important property of this
new function is that it handles the case where the source value set and
destination value set overlap. This makes it feasible for isel to use
SelectNodeTo in many very common cases, which is advantageous because
SelectNodeTo avoids a temporary node and it doesn't require CSEMap
updates for users of values that don't change position.

Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to
handle operand lists more efficiently, and to correctly handle a number
of corner cases to which its new wider use exposes it.

This commit also includes a change to the encoding of post-isel opcodes
in SDNodes; now instead of being sandwiched between the target-independent
pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel
opcodes are now represented as negative values. This makes it possible
to test if an opcode is pre-isel or post-isel without having to know
the size of the current target's post-isel instruction set.

These changes speed up llc overall by 3% and reduce memory usage by 10%
on the InstructionCombining.cpp testcase with -fast and -regalloc=local.

llvm-svn: 53728
2008-07-17 19:10:17 +00:00
Evan Cheng 32e376f354 Implement llvm.atomic.cmp.swap.i32 on PPC. Patch by Gary Benson!
llvm-svn: 53505
2008-07-12 02:23:19 +00:00
Dan Gohman 02c7c6cb33 Include a frame index in the "fixed stack" pseudo source value
instead of using the frame index for the SVOffset, which was
inconsistent.

llvm-svn: 53486
2008-07-11 22:44:52 +00:00
Dan Gohman 0597e5b697 Trim unnecessary #includes.
llvm-svn: 53471
2008-07-11 20:38:31 +00:00
Chris Lattner 60de1ae3d9 Remove extraneous vertical whitespace before Eric gets the wrong idea ;-)
llvm-svn: 53411
2008-07-10 16:49:53 +00:00
Chris Lattner 5e718e7431 Fix an altivec constant miscompilation that Duncan found through
his work on legalizetypes.

llvm-svn: 53410
2008-07-10 16:33:38 +00:00
Dale Johannesen ca43dce1e8 Remove extra call to DW.SetModuleInfo on Linux.
llvm-svn: 53365
2008-07-09 21:33:15 +00:00
Dale Johannesen dbd04c0783 Emit debug into for data-only files for Linux PPC.
I cannot test this target, let me know if it breaks!

llvm-svn: 53362
2008-07-09 21:24:07 +00:00
Dale Johannesen b9aaddc110 Emit debug info for data-only files. This version
applies to ppc Darwin only.

llvm-svn: 53353
2008-07-09 20:43:39 +00:00
Evan Cheng 49c8e68e4c Back out 53254. It broke ppc debug info codegen.
llvm-svn: 53280
2008-07-09 06:36:53 +00:00
Dale Johannesen b9097a71d4 Make debug info come out in data-only files.
This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

llvm-svn: 53254
2008-07-08 21:56:22 +00:00
Dan Gohman 3b46030375 Pool-allocation for MachineInstrs, MachineBasicBlocks, and
MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.

llvm-svn: 53212
2008-07-07 23:14:23 +00:00
Evan Cheng 0189604b0a Clean up PPC register specification.
llvm-svn: 53209
2008-07-07 22:22:07 +00:00
Dan Gohman 230263c63e Simplify this use of BuildMI. This is also in preparation for
pool-allocating MachineInstrs.

llvm-svn: 53198
2008-07-07 20:09:12 +00:00
Dan Gohman 56e3f63ec5 Add explicit keywords.
llvm-svn: 53179
2008-07-07 18:00:37 +00:00
Duncan Sands 93e180342a Rather than having a different custom legalization
hook for each way in which a result type can be
legalized (promotion, expansion, softening etc),
just use one: ReplaceNodeResults, which returns
a node with exactly the same result types as the
node passed to it, but presumably with a bunch of
custom code behind the scenes.  No change if the
new LegalizeTypes infrastructure is not turned on.

llvm-svn: 53137
2008-07-04 11:47:58 +00:00
Duncan Sands 04fb6bf468 Linux also does not require exception handling
moves in order to get correct debug info.  Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!

llvm-svn: 53134
2008-07-04 09:55:48 +00:00
Evan Cheng 7d98a48f15 - Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.

llvm-svn: 53097
2008-07-03 09:09:37 +00:00
Duncan Sands 739a0548c4 Add a new getMergeValues method that does not need
to be passed the list of value types, and use this
where appropriate.  Inappropriate places are where
the value type list is already known and may be
long, in which case the existing method is more
efficient.

llvm-svn: 53035
2008-07-02 17:40:58 +00:00
Bill Wendling b7bd02be57 Darwin doesn't need exception handling information for the "move" info when
debug information is being output, because it's leet!

llvm-svn: 52994
2008-07-01 23:34:48 +00:00
Dan Gohman fb19f9402b Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.

llvm-svn: 52943
2008-07-01 00:05:16 +00:00
Dan Gohman 5c73a886b4 Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect its
purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.

llvm-svn: 52924
2008-06-30 20:59:49 +00:00
Evan Cheng 0711d68fa7 Split scheduling from instruction selection.
llvm-svn: 52923
2008-06-30 20:45:06 +00:00
Duncan Sands 1ae6ef83ee Revert the SelectionDAG optimization that makes
it impossible to create a MERGE_VALUES node with
only one result: sometimes it is useful to be able
to create a node with only one result out of one of
the results of a node with more than one result, for
example because the new node will eventually be used
to replace a one-result node using ReplaceAllUsesWith,
cf X86TargetLowering::ExpandFP_TO_SINT.  On the other
hand, most users of MERGE_VALUES don't need this and
for them the optimization was valuable.  So add a new
utility method getMergeValues for creating MERGE_VALUES
nodes which by default performs the optimization.
Change almost everywhere to use getMergeValues (and
tidy some stuff up at the same time).

llvm-svn: 52893
2008-06-30 10:19:09 +00:00
Anton Korobeynikov c1e80a759f Provide correct encoding for PPC LWARX instructions.
Patch by Gary Benson!

llvm-svn: 52828
2008-06-27 16:10:20 +00:00
Chris Lattner d3406fc2a7 Switch the PPC backend and target-independent JIT to use the libsystem
InvalidateInstructionCache method instead of calling through
a hook on the JIT.  This is a host feature, not a target feature.

llvm-svn: 52734
2008-06-25 17:18:44 +00:00
Mon P Wang 6a490371c9 Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub

llvm-svn: 52706
2008-06-25 08:15:39 +00:00
Dan Gohman 1f2b2a4abe Remove unnecessary #includes.
llvm-svn: 52613
2008-06-22 19:21:26 +00:00
Dan Gohman 55083d5dd3 Use MachineBasicBlock::transferSuccessors.
llvm-svn: 52594
2008-06-21 20:21:19 +00:00
Anton Korobeynikov f51ed6a161 Add one more 'magic' define :)
llvm-svn: 52420
2008-06-17 17:57:43 +00:00
Anton Korobeynikov 8e5d9214ba Unbreak non-PPC builds
llvm-svn: 52419
2008-06-17 17:38:31 +00:00
Anton Korobeynikov 7d7dcd52db Provide generic hooks for icache invalidation. Add PPC implementation.
Patch by Gary Benson!

llvm-svn: 52418
2008-06-17 17:30:05 +00:00
Chris Lattner 8b69e8a647 Add support for icache invalidation on non-darwin ppc systems.
Patch by Gary Benson!

llvm-svn: 52332
2008-06-16 17:04:06 +00:00
Evan Cheng 03553bb59a Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
llvm-svn: 52308
2008-06-16 07:33:11 +00:00
Duncan Sands 11dd424539 Remove comparison methods for MVT. The main cause
of apint codegen failure is the DAG combiner doing
the wrong thing because it was comparing MVT's using
< rather than comparing the number of bits.  Removing
the < method makes this mistake impossible to commit.
Instead, add helper methods for comparing bits and use
them.

llvm-svn: 52098
2008-06-08 20:54:56 +00:00
Bill Wendling b7272db9f6 Temporarily reverting r52056. It's causing PPC to fail to bootstrap.
llvm-svn: 52085
2008-06-08 01:36:24 +00:00
Evan Cheng 0b8f2c53a2 Typo.
llvm-svn: 52062
2008-06-06 21:00:10 +00:00
Evan Cheng 9bf9110d93 PPC preferred loop alignment is 16.
llvm-svn: 52056
2008-06-06 19:50:46 +00:00
Duncan Sands 13237ac3b9 Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).

llvm-svn: 52044
2008-06-06 12:08:01 +00:00
Dale Johannesen 355b74acc2 Add StringConstantPrefix to control what the
assembler names of string constants look like.

llvm-svn: 51909
2008-06-03 18:09:06 +00:00
Chris Lattner 305fcd493f Add FreeBSD/PPC support, patch by Marcel Moolenaar!
llvm-svn: 51538
2008-05-24 04:58:48 +00:00
Dale Johannesen 18cc4d3ea4 Put initialized const weak objects into correct
sections on ppc32 darwin.  g++.dg/abi/key2.C

llvm-svn: 51527
2008-05-24 00:10:20 +00:00
Dale Johannesen 002e554ce9 Add a missed CommonLinkage check.
llvm-svn: 51503
2008-05-23 21:33:27 +00:00
Dale Johannesen 5bf742f2aa Handle quoted names when constructing $stub's,
$non_lazy_ptr's and $lazy_ptr's.

llvm-svn: 51277
2008-05-19 21:38:18 +00:00
Dale Johannesen 2e1d5e487b Record weak external linkage in a case where we were
missing it. gcc.dg/darwin-weakimport-2.c.
Handle common and weak differently for darwin ppc32.

llvm-svn: 51201
2008-05-16 20:09:25 +00:00
Dale Johannesen ce4396bc92 Add CommonLinkage; currently tentative definitions
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.

llvm-svn: 51118
2008-05-14 20:12:51 +00:00
Dan Gohman eabd647cd5 Change target-specific classes to use more precise static types.
This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.

llvm-svn: 51091
2008-05-14 01:58:56 +00:00
Dan Gohman d78c400b5b Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Arnold Schwaighofer be0de34ede Tail call optimization improvements:
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.

llvm-svn: 50477
2008-04-30 09:16:33 +00:00
Chris Lattner 724539c001 A few inline asm cleanups:
- Make targetlowering.h fit in 80 cols.
  - Make LowerAsmOperandForConstraint const.
  - Make lowerXConstraint -> LowerXConstraint
  - Make LowerXConstraint return a const char* instead of taking a string byref.

llvm-svn: 50312
2008-04-26 23:02:14 +00:00
Chris Lattner 33bd24bd92 add a note
llvm-svn: 50267
2008-04-25 17:25:00 +00:00
Evan Cheng 5102bd9359 64-bit atomic operations.
llvm-svn: 49949
2008-04-19 02:30:38 +00:00
Evan Cheng 51096affb5 PPC32 atomic operations.
llvm-svn: 49947
2008-04-19 01:30:48 +00:00
Nicolas Geoffray a7557dfe71 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.

llvm-svn: 49814
2008-04-16 20:46:05 +00:00
Nicolas Geoffray ae84bbdbed Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
llvm-svn: 49809
2008-04-16 20:10:13 +00:00
Nicolas Geoffray 7000c8f1aa Change Divided flag to Split, as suggested by Evan
llvm-svn: 49715
2008-04-15 08:08:50 +00:00
Dale Johannesen 876224b1e8 Reverse sense of unwind-tables option. This means
stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.

llvm-svn: 49663
2008-04-14 17:54:17 +00:00
Nicolas Geoffray dcc2eda5fc Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643
llvm-svn: 49611
2008-04-13 13:40:22 +00:00
Dan Gohman 544ab2c50b Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572
2008-04-12 04:36:06 +00:00
Dale Johannesen 344aec2952 Implement new llc flag -disable-required-unwind-tables.
Corresponds to -fno-unwind-tables (usually default in gcc).

llvm-svn: 49361
2008-04-08 00:10:24 +00:00
Dan Gohman 3bc3ddd638 Rename MemOperand to MachineMemOperand. This was suggested by
review feedback from Chris quite a while ago. No functionality
change.

llvm-svn: 49348
2008-04-07 19:35:22 +00:00
Roman Levenstein 51f532f92d Re-commit of the r48822, where the infinite looping problem discovered
by Dan Gohman is fixed.

llvm-svn: 49330
2008-04-07 10:06:32 +00:00
Evan Cheng 025cea1126 Backing out 48222 temporarily.
llvm-svn: 49124
2008-04-03 03:13:16 +00:00
Dale Johannesen 8780ecbbac Cosmetic changes per EH patch review feedback.
llvm-svn: 49096
2008-04-02 17:04:45 +00:00
Dale Johannesen fd967cf3fa Recommitting EH patch; this should answer most of the
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.

llvm-svn: 49064
2008-04-02 00:25:04 +00:00
Dale Johannesen 5e4e051c2a Revert 49006 for the moment.
llvm-svn: 49046
2008-04-01 20:00:57 +00:00
Dale Johannesen 7d02cf3c9c Emit exception handling info for functions which are
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.

llvm-gcc generates nounwind in the right places; other FEs
will need to do so also.  Given such a FE, -enable-eh should
no longer be needed.

llvm-svn: 49006
2008-03-31 23:40:23 +00:00
Evan Cheng ed6e34fe41 Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
llvm-svn: 48995
2008-03-31 20:40:39 +00:00
Chris Lattner 0f760dfe09 Fix "Control reaches the end of non-void function" warnings,
patch by David Chisnall.

llvm-svn: 48963
2008-03-30 18:22:13 +00:00
Roman Levenstein 358e04a185 Use a linked data structure for the uses lists of an SDNode, just like
LLVM Value/Use does and MachineRegisterInfo/MachineOperand does.
This allows constant time for all uses list maintenance operations.

The idea was suggested by Chris. Reviewed by Evan and Dan.
Patch is tested and approved by Dan.

On normal use-cases compilation speed is not affected. On very big basic
blocks there are compilation speedups in the range of 15-20% or even better. 

llvm-svn: 48822
2008-03-26 12:39:26 +00:00
Evan Cheng ddc58ff92a Smaller function alignment when optimizing for size.
llvm-svn: 48805
2008-03-25 22:29:46 +00:00
Dan Gohman c60c67fc37 Add explicit keywords.
llvm-svn: 48801
2008-03-25 22:06:05 +00:00
Dan Gohman bdc24adaaf A quick nm audit turned up several fixed tables and objects that were
marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800
2008-03-25 21:45:14 +00:00
Bill Wendling 6306183df3 Use the bit size of the operand instead of the hard-coded 32 to generate the
mask.

llvm-svn: 48750
2008-03-24 23:16:37 +00:00
Duncan Sands d97eea372a Introduce a new node for holding call argument
flags.  This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines.  There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness.  As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.

llvm-svn: 48640
2008-03-21 09:14:45 +00:00
Chris Lattner a7cca362af detabify llvm, patch by Mike Stump!
llvm-svn: 48577
2008-03-20 01:22:40 +00:00
Dan Gohman b9056838d2 Add support for multiple return values for the PPC target by
converting call result lowering to use the CallingConvLowering
infastructure.

llvm-svn: 48552
2008-03-19 21:39:28 +00:00
Dale Johannesen cf87e71053 Make Complex long long/double/long double work
in ppc64 mode.

llvm-svn: 48459
2008-03-17 17:11:08 +00:00
Evan Cheng 24bc123e80 Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.
llvm-svn: 48447
2008-03-17 06:56:52 +00:00
Dale Johannesen 92dcf1e0c2 Next round of PPC32 ABI changes. Allow for gcc
behavior where a callee thinks a param will be
present in memory, even though the ABI doc says
it doesn't have to be.  Handle complex long long
and complex double (4 and 8 return regs).

llvm-svn: 48439
2008-03-17 02:13:43 +00:00
Evan Cheng 0e7b00d79f Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
llvm-svn: 48380
2008-03-15 00:03:38 +00:00
Dale Johannesen 0dfd3f33f7 Implement the real calling convention for ppc32 Altivec:
vectors go at the end of the memory area, after all
non-vector parameters.

llvm-svn: 48364
2008-03-14 17:41:26 +00:00
Dale Johannesen 6424bd0b11 Do not promote float params to double in varargs
calls here.  This was done earlier for params in
the varargs part of the params; any float params
that survive to here are in the non-varargs part,
and must not be promoted.

llvm-svn: 48310
2008-03-12 23:40:01 +00:00
Dale Johannesen 0d98256c05 One more bit of Altivec parameter passing.
llvm-svn: 48269
2008-03-12 00:49:20 +00:00
Dale Johannesen b28456ef18 Implement Altivec passing to varargs functions on ppc.
llvm-svn: 48264
2008-03-12 00:22:17 +00:00
Dan Gohman 24570836b2 Use PassManagerBase instead of FunctionPassManager for functions
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.

llvm-svn: 48256
2008-03-11 22:29:46 +00:00
Dan Gohman d6819da453 Generalize ExpandIntToFP to handle the case where the operand is legal
and it's the result that requires expansion. This code is a little confusing
because the TargetLoweringInfo tables for [US]INT_TO_FP use the operand type
(the integer type) rather than the result type. 

llvm-svn: 48206
2008-03-11 01:59:03 +00:00
Dale Johannesen 0fb187f81b Disable prolog code that aligns the stack when a
local object of >16 byte alignment exists.  It does not
work and getting it to work is not trivial, as explained
in the comment.  This fixes all the remaining ppc32
failures in the struct-layout-1 part of the gcc testsuite.

(gcc does not support this either, and the only way to
get such an object is with __attribute__((aligned)) or
generic vectors; it can't be done in a standard-conforming
program, or with Altivec.  So I think disabling it is OK.)

llvm-svn: 48188
2008-03-10 22:59:46 +00:00
Bill Wendling c6c48fca74 Change the "enable/disable" mechanism so that we can enable PPC register
scavenging for 32-bit and 64-bit separately.

llvm-svn: 48186
2008-03-10 22:49:16 +00:00
Evan Cheng ae2c56d93e Default ISD::PREFETCH to expand.
llvm-svn: 48169
2008-03-10 19:38:10 +00:00
Chris Lattner 514b3ed536 fix 80 col violations.
llvm-svn: 48166
2008-03-10 18:55:53 +00:00
Nicolas Geoffray 708784ea4f Stylistic modifications. No functionality changes.
llvm-svn: 48158
2008-03-10 17:46:45 +00:00
Scott Michel a6729e8666 Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's
return ValueType can depend its operands' ValueType.

This is a cosmetic change, no functionality impacted.

llvm-svn: 48145
2008-03-10 15:42:14 +00:00
Nicolas Geoffray b1de7a35f9 Add description of individual bits in CR. This fix PR1765.
llvm-svn: 48143
2008-03-10 14:12:10 +00:00
Dale Johannesen 4e622ec86d Increase ISD::ParamFlags to 64 bits. Increase the ByValSize
field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff.  Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and 
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)

llvm-svn: 48122
2008-03-10 02:17:22 +00:00
Chris Lattner aed9406bb7 Darwin PPC64 indirect call target goes in X12, not R12. This fixes these
two regression tests:
test/CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert.ll
test/CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert2.ll

llvm-svn: 48120
2008-03-09 20:49:33 +00:00
Dale Johannesen 21a8f144a6 More ppc32 byval handling (bug fixes). Things
are looking pretty good now.

llvm-svn: 48043
2008-03-08 01:41:42 +00:00
Evan Cheng 95cf661534 Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions.
llvm-svn: 48042
2008-03-08 00:58:38 +00:00
Dan Gohman d2ab5fd713 Add support for calls with i128 return values on ppc64.
llvm-svn: 48041
2008-03-08 00:19:12 +00:00
Bill Wendling 968f32ce3d PPC64 passes arguments of integral type in i64 registers, not i32. Reflect this
by promoting smaller integral values (i32 at this point) to i64, then truncating
to get the wanted size.

llvm-svn: 48030
2008-03-07 20:49:02 +00:00
Dan Gohman 8d2ead2e34 Add support for lowering 128-bit shifts on ppc64.
llvm-svn: 48029
2008-03-07 20:36:53 +00:00
Dale Johannesen bfa252d402 Next bits of PPC byval handling. Basically functional
but there are bugs.

llvm-svn: 48028
2008-03-07 20:27:40 +00:00
Chris Lattner 20b5a2b037 Add support for ppc64 shifts with 7-bit (oversized) shift amount (e.g. PPCshl).
llvm-svn: 48027
2008-03-07 20:18:24 +00:00
Chris Lattner 25ff7e217d Replace SDT_PPCShiftOp in favor of SDTIntBinOps. This allows it to work
with 32 or 64-bit operands/results.

llvm-svn: 48026
2008-03-07 20:13:51 +00:00
Dale Johannesen 0d235052d1 Next bit of PPC ByVal handling; call-site code seems
correct now.

llvm-svn: 47978
2008-03-05 23:31:27 +00:00
Bill Wendling 3fcd946c26 Removed spurious EnablePPCRS check.
llvm-svn: 47918
2008-03-04 23:27:33 +00:00
Dale Johannesen 85d41a1c44 Move PPC lowering functions into PPCTargetLowering
class (cosmetic).  First piece of byval implementation;
this doesn't work yet.  No functional change.

llvm-svn: 47917
2008-03-04 23:17:14 +00:00
Bill Wendling 1af20ad336 Use a command-line option to turn register scavenging on/off for PPC.
llvm-svn: 47915
2008-03-04 23:13:51 +00:00
Bill Wendling 632ea65072 This is the initial check-in for adding register scavenging to PPC. (Currently,
PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that
it uses a register other than the default R0 register (the scavenger scrounges
for one). A significant part of this patch fixes how kill information is
handled.

llvm-svn: 47863
2008-03-03 22:19:16 +00:00
Chris Lattner 6b0a189225 add a note
llvm-svn: 47830
2008-03-02 19:27:34 +00:00
Chris Lattner bd0bb3f07f Evan implemented this.
llvm-svn: 47827
2008-03-02 17:56:29 +00:00
Anton Korobeynikov 0e8b146152 Use enumeration for preffered EH dwarf encoding reason
llvm-svn: 47770
2008-02-29 22:09:08 +00:00
Dale Johannesen cbde4c2206 Interface of getByValTypeAlignment differed between
generic & x86 versions; change generic to follow x86
and improve comments.  Add PPC version (not right
for non-Darwin.)

llvm-svn: 47734
2008-02-28 22:31:51 +00:00
Evan Cheng c799065cc3 Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to 16-byte boundaries.
llvm-svn: 47703
2008-02-28 00:43:03 +00:00
Anton Korobeynikov d73396bef9 EHPreferredDataFormat hook for PPC targets. Looks like Darwin
uses the same encoding everywhere. Linux FIXME'ed.

llvm-svn: 47701
2008-02-27 23:49:15 +00:00
Dan Gohman 26854f242e Don't hard-code the mask size to be 32, which is incorrect on ppc64
and was causing aborts with the new APInt changes. This may also be
fixing an obscure ppc64 bug.

llvm-svn: 47692
2008-02-27 21:12:32 +00:00
Bill Wendling 97925ec704 Final de-tabification.
llvm-svn: 47663
2008-02-27 06:33:05 +00:00
Dan Gohman f19609abe8 Convert the last remaining users of the non-APInt form of
ComputeMaskedBits to use the APInt form, and remove the
non-APInt form.

llvm-svn: 47654
2008-02-27 01:23:58 +00:00
Bill Wendling d7a258d325 Rename PrintableName to Name.
llvm-svn: 47629
2008-02-26 21:47:57 +00:00
Bill Wendling c24ea4fb41 Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool
would have been a Godsend here!

llvm-svn: 47625
2008-02-26 21:11:01 +00:00
Bill Wendling a7d1ed4c98 Some platforms use the same name for 32-bit and 64-bit registers (like
%r3 on PPC) in their ASM files. However, it's hard for humans to read
during debugging. Adding a new field to the register data that lets you
specify a different name to be printed than the one that goes into the
ASM file -- %x3 instead of %r3, for instance.

llvm-svn: 47534
2008-02-24 00:56:13 +00:00
Anton Korobeynikov 40d67c59d5 Remove bunch of gcc 4.3-related warnings from Target
llvm-svn: 47369
2008-02-20 11:22:39 +00:00
Andrew Lenharth fedcf477b5 I cannot find a libgcc function for this builtin. Therefor expanding it to a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support.
llvm-svn: 47213
2008-02-16 14:46:26 +00:00
Chris Lattner 7b1431785b Handle \n's in value names for more targets. The asm printers
really really really need refactoring :(

llvm-svn: 47171
2008-02-15 19:04:54 +00:00
Dale Johannesen 2e01912f1a Cosmetics.
llvm-svn: 47168
2008-02-15 18:40:53 +00:00
Dale Johannesen 67b818f503 Remove warning about 64-bit code on processor
that doesn't support it.  Per Chris.

llvm-svn: 47162
2008-02-15 18:09:51 +00:00
Dale Johannesen 6ca3ccf519 Rewrite tblgen handling of subtarget features so
it follows the order of the enum, not alphabetical.
The motivation is to make -mattr=+ssse3,+sse41
select SSE41 as it ought to.  Added "ignored"
enum values of 0 to PPC and SPU to avoid compiler
warnings.

llvm-svn: 47143
2008-02-14 23:35:16 +00:00
Nate Begeman 53e1b3f9d5 Change how FP immediates are handled.
1) ConstantFP is now expand by default
2) ConstantFP is not turned into TargetConstantFP during Legalize
   if it is legal.

This allows ConstantFP to be handled like Constant, allowing for 
targets that can encode FP immediates as MachineOperands.

As a bonus, fix up Itanium FP constants, which now correctly match,
and match more constants!  Hooray.

llvm-svn: 47121
2008-02-14 08:57:00 +00:00
Dan Gohman e1d9ee66ed Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits
to pass the mask APInt by value, not by reference. 

llvm-svn: 47096
2008-02-13 22:28:48 +00:00
Nicolas Geoffray 21ad494f67 Enable exception handling int JIT
llvm-svn: 47079
2008-02-13 18:39:37 +00:00
Chris Lattner d973e836f1 Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR.
llvm-svn: 47067
2008-02-13 17:24:14 +00:00
Chris Lattner f6518cf4ab don't try to avoid inserting loads when lowering FORMAL_ARGUMENTS.
DAGCombine is now quite good at zapifying them.

llvm-svn: 47053
2008-02-13 07:35:30 +00:00
Nate Begeman eea32990a9 readme updates
llvm-svn: 47051
2008-02-13 07:06:12 +00:00
Nate Begeman 87abe955fc Make register scavenging happy by not using a reg (CR0) that isn't defined
llvm-svn: 47045
2008-02-13 02:58:33 +00:00
Evan Cheng 244183ef0d commuteInstr() can now commute non-ssa machine instrs.
llvm-svn: 47043
2008-02-13 02:46:49 +00:00
Dan Gohman f990faf23b Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t.
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.

llvm-svn: 47039
2008-02-13 00:35:47 +00:00
Evan Cheng 83af1197ca Revert r46916 PPCTargetAsmInfo.cpp.
llvm-svn: 47020
2008-02-12 19:25:12 +00:00
Nate Begeman 3090b0fbd1 additional missing feature
llvm-svn: 46948
2008-02-11 04:16:09 +00:00
Dan Gohman 3a4be0fdef Rename MRegisterInfo to TargetRegisterInfo.
llvm-svn: 46930
2008-02-10 18:45:23 +00:00
Nick Lewycky 52ea27db17 Match GCC's behaviour for these sections.
llvm-svn: 46916
2008-02-10 00:03:54 +00:00
Evan Cheng 3b3286d4bc It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.
llvm-svn: 46893
2008-02-08 21:20:40 +00:00
Dan Gohman 16d4bc3dc0 Follow Chris' suggestion; change the PseudoSourceValue accessors
to return pointers instead of references, since this is always what
is needed.

llvm-svn: 46857
2008-02-07 18:41:25 +00:00
Dan Gohman 2d489b5081 Re-apply the memory operand changes, with a fix for the static
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827
2008-02-06 22:27:42 +00:00
Nate Begeman f3c89be368 Ident mnemonics appropriately
llvm-svn: 46746
2008-02-05 08:49:09 +00:00
Evan Cheng 2cb9068c78 Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead.
llvm-svn: 46724
2008-02-04 23:06:48 +00:00
Evan Cheng 32e5347eb8 Get rid of the annoying blank lines before labels.
llvm-svn: 46667
2008-02-02 08:39:46 +00:00
Evan Cheng 2aa360adf8 Unbreak ppc debug support.
llvm-svn: 46665
2008-02-02 05:06:29 +00:00
Evan Cheng efd142a920 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659
2008-02-02 04:07:54 +00:00
Evan Cheng d6e44ab5ec Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before.
llvm-svn: 46635
2008-02-01 09:10:45 +00:00
Evan Cheng 27b32b87ed Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit.
llvm-svn: 46623
2008-01-31 21:00:00 +00:00
Evan Cheng 1c6c16ea11 Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution.
llvm-svn: 46609
2008-01-31 09:59:15 +00:00
Evan Cheng 3c0486fb38 Makes the same change in ppc backend: avoid inserting prologue before debug labels.
llvm-svn: 46596
2008-01-31 03:33:38 +00:00
Dan Gohman 9ba4d76816 Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting
with the real FLT_ROUNDS (defined in <float.h>).

llvm-svn: 46587
2008-01-31 00:41:03 +00:00
Dan Gohman 3646fdda67 Create a new class, MemOperand, for describing memory references
in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.

Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.

Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.

llvm-svn: 46585
2008-01-31 00:25:39 +00:00
Evan Cheng 29cfb67e28 Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert
instruction at the end.

llvm-svn: 46562
2008-01-30 18:18:23 +00:00
Dan Gohman 47a7d6fafe Factor the addressing mode and the load/store VT out of LoadSDNode
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.

llvm-svn: 46538
2008-01-30 00:15:11 +00:00
Bill Wendling 1a17ef02c8 If there's no instructions being emitted on X86 for a function, emit a
nop. Emit the nop directly for PPC.

llvm-svn: 46398
2008-01-26 09:03:52 +00:00
Bill Wendling 5079483957 If there are no machine instructions emitted for a function, then insert
a "nop" instruction so that we don't have the function's label associated
with something that it's not supposed to be associated with.

llvm-svn: 46394
2008-01-26 06:51:24 +00:00
Chris Lattner 919ad97c01 JITEmitter.cpp was trying to sync the icache for function stubs, but
was actually passing a completely incorrect size to sys_icache_invalidate.
Instead of having the JITEmitter do this (which doesn't have the correct 
size), just make the target sync its own stubs.

llvm-svn: 46354
2008-01-25 16:41:09 +00:00
Duncan Sands 95d46ef887 The last pieces needed for loading arbitrary
precision integers.  This won't actually work
(and most of the code is dead) unless the new
legalization machinery is turned on.  While
there, I rationalized the handling of i1, and
removed some bogus (and unused) sextload patterns.
For i1, this could result in microscopically
better code for some architectures (not X86).
It might also result in worse code if annotating
with AssertZExt nodes turns out to be more harmful
than helpful.

llvm-svn: 46280
2008-01-23 20:39:46 +00:00
Dale Johannesen 7f1ff5fedd Honor explicit section information on Darwin.
llvm-svn: 46267
2008-01-23 00:58:14 +00:00
Dale Johannesen 5c94cb3596 Implement flt_rounds for PowerPC.
llvm-svn: 46174
2008-01-18 19:55:37 +00:00
Chris Lattner 87757d38b3 get symbolic information for ppc ldbl nodes.
llvm-svn: 46165
2008-01-18 18:51:16 +00:00
Chris Lattner f5b46f7dad Fix a latent bug exposed by my truncstore patch. We compiled stfiwx-2.ll to:
_test:
	fctiwz f0, f1
	stfiwx f0, 0, r4
	blr 

instead of:

_test:
	fctiwz f0, f1
	stfd f0, -8(r1)
	nop
	nop
	lwz r2, -4(r1)
	stb r2, 0(r4)
	blr 

The former is not correct (stores 4 bytes, not 1).

llvm-svn: 46161
2008-01-18 16:54:56 +00:00
Dale Johannesen 60a9855799 Revert the part of 45848 that treated weak globals
as weak globals rather than commons.  While not wrong,
this change tickled a latent bug in Darwin's strip,
so revert it for now as a workaround.

llvm-svn: 46144
2008-01-17 23:04:07 +00:00
Chris Lattner 1ea55cf816 This commit changes:
1. Legalize now always promotes truncstore of i1 to i8. 
2. Remove patterns and gunk related to truncstore i1 from targets.
3. Rename the StoreXAction stuff to TruncStoreAction in TLI.
4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions.
5. Mark a wide variety of invalid truncstores as such in various targets, e.g.
   X86 currently doesn't support truncstore of any of its integer types.
6. Add legalize support for truncstores with invalid value input types.
7. Add a dag combine transform to turn store(truncate) into truncstore when
   safe.

The later allows us to compile CodeGen/X86/storetrunc-fp.ll to:

_foo:
	fldt	20(%esp)
	fldt	4(%esp)
	faddp	%st(1)
	movl	36(%esp), %eax
	fstps	(%eax)
	ret

instead of:

_foo:
	subl	$4, %esp
	fldt	24(%esp)
	fldt	8(%esp)
	faddp	%st(1)
	fstps	(%esp)
	movl	40(%esp), %eax
	movss	(%esp), %xmm0
	movss	%xmm0, (%eax)
	addl	$4, %esp
	ret

llvm-svn: 46140
2008-01-17 19:59:44 +00:00
Chris Lattner 72733e573b * Introduce a new SelectionDAG::getIntPtrConstant method
and switch various codegen pieces and the X86 backend over
  to using it.

* Add some comments to SelectionDAGNodes.h

* Introduce a second argument to FP_ROUND, which indicates
  whether the FP_ROUND changes the value of its input. If
  not it is safe to xform things like fp_extend(fp_round(x)) -> x.

llvm-svn: 46125
2008-01-17 07:00:52 +00:00
Dale Johannesen 59a2250b0d Fix and enable EH for x86-64 Darwin. Adds
ShortenEHDataFor64Bits as a not-very-accurate
abstraction to cover all the changes in DwarfWriter.
Some cosmetic changes to Darwin assembly code for
gcc testsuite compatibility.

llvm-svn: 46029
2008-01-15 23:24:56 +00:00
Chris Lattner 8e07533f20 If someone wants to implement ppc TRAP, they can go for it :)
llvm-svn: 46019
2008-01-15 22:15:02 +00:00
Chris Lattner 9a249b0ce5 rename SDTRet -> SDTNone.
Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.

llvm-svn: 46017
2008-01-15 22:02:54 +00:00
Chris Lattner 596875118c rename MachineInstr::setInstrDescriptor -> setDesc
llvm-svn: 45871
2008-01-11 18:10:50 +00:00
Dale Johannesen 2ff66f08f2 Weak things initialized to 0 don't go in bss on Darwin.
Cosmetic changes to spacing to match gcc (some dejagnu
tests actually care).

llvm-svn: 45848
2008-01-11 00:54:37 +00:00
Duncan Sands 53c954fa86 Output sinl for a long double FSIN node, not sin.
Likewise fix up a bunch of other libcalls.  While
there I remove NEG_F32 and NEG_F64 since they are
not used anywhere.  This fixes 9 Ada ACATS failures.

llvm-svn: 45833
2008-01-10 10:28:30 +00:00
Chris Lattner aca7ca3730 remove explicit sets of 'neverHasSideEffects' that can now be
inferred from the instr patterns.

llvm-svn: 45824
2008-01-10 05:45:39 +00:00
Chris Lattner 94de7bc3aa get def use info more correct.
llvm-svn: 45821
2008-01-10 05:12:37 +00:00
Dale Johannesen 7ecb3b79c7 Emit unused EH frames for weak definitions on Darwin,
because assembler/linker can't cope with weak absolutes.
PR 1880.

llvm-svn: 45811
2008-01-10 02:03:30 +00:00
Duncan Sands bb956ca730 Use size_t to store Pos, avoid truncating value
on 64-bit builds.  Analysis and original patch
by Török Edwin.  Code audit found another place
with the same problem, also fixed here.

llvm-svn: 45746
2008-01-08 10:06:15 +00:00
Chris Lattner 89f36e6b21 Finally implement correct ordered comparisons for PPC, even though
the code generated is not wonderful.  This turns a miscompilation into
a code quality bug (noted in the ppc readme).  This fixes PR642, which
is over 2 years old (!).  Nate, please review this.

llvm-svn: 45742
2008-01-08 06:46:30 +00:00
Chris Lattner 03ad885039 rename TargetInstrDescriptor -> TargetInstrDesc.
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695
2008-01-07 07:27:27 +00:00
Chris Lattner d004f54155 use predicate.
llvm-svn: 45691
2008-01-07 06:37:29 +00:00
Chris Lattner 6077962101 no need to explicitly clear these fields.
llvm-svn: 45683
2008-01-07 04:55:09 +00:00
Chris Lattner b0d06b4381 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
llvm-svn: 45680
2008-01-07 03:13:06 +00:00
Chris Lattner f0f438a517 remove MachineOpCode typedef.
llvm-svn: 45679
2008-01-07 02:48:55 +00:00
Chris Lattner a98c679de0 Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674
2008-01-07 01:56:04 +00:00
Owen Anderson 2a3be7bb6c Move even more functionality from MRegisterInfo into TargetInstrInfo.
Some day I'll get it all moved over...

llvm-svn: 45672
2008-01-07 01:35:02 +00:00
Chris Lattner a4ce4f6987 rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
llvm-svn: 45667
2008-01-06 23:38:27 +00:00
Chris Lattner 10324d0175 rename isStore -> mayStore to more accurately reflect what it captures.
llvm-svn: 45656
2008-01-06 08:36:04 +00:00
Chris Lattner a348f55ec6 Change the 'isStore' inferrer to look for 'SDNPMayStore'
instead of "ISD::STORE".  This allows us to mark target-specific dag
nodes as storing (such as ppc byteswap stores).  This allows us to remove
more explicit isStore flags from the .td files.

Finally, add a warning for when a .td file contains an explicit 
isStore and tblgen is able to infer it.

llvm-svn: 45654
2008-01-06 06:44:58 +00:00
Chris Lattner e20f380fbf remove some isStore flags that are now inferred automatically.
llvm-svn: 45652
2008-01-06 05:53:26 +00:00
Evan Cheng 2e1ba07f16 Correct order of parameters.
llvm-svn: 45562
2008-01-04 02:22:21 +00:00
Evan Cheng 563fcc3428 Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used
for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).

llvm-svn: 45527
2008-01-03 02:56:28 +00:00
Chris Lattner dcbc0f3029 leopard and above support alignment for common symbols.
llvm-svn: 45493
2008-01-02 19:35:16 +00:00
Owen Anderson eee14601b1 Move some more instruction creation methods from RegisterInfo into InstrInfo.
llvm-svn: 45484
2008-01-01 21:11:32 +00:00
Chris Lattner b0fb17fd34 Fix a bug in my previous patch: refer to the impl not the pure virtual version. It's unclear why gcc would ever compile this...
llvm-svn: 45476
2008-01-01 01:05:34 +00:00
Chris Lattner 25568e4cef Fix a problem where lib/Target/TargetInstrInfo.h would include and use
a header file from libcodegen.  This violates a layering order: codegen
depends on target, not the other way around.  The fix to this is to 
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen.  It is defined in libcodegen, where 
the base is not.

llvm-svn: 45475
2008-01-01 01:03:04 +00:00
Owen Anderson 7a73ae9a86 Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
Machine-level API cleanup instigated by Chris.

llvm-svn: 45470
2007-12-31 06:32:00 +00:00
Chris Lattner a10fff51d9 Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
2007-12-31 04:13:23 +00:00
Chris Lattner a5bb370aa4 Add new shorter predicates for testing machine operands for various types:
e.g. MO.isMBB() instead of MO.isMachineBasicBlock().  I don't plan on 
switching everything over, so new clients should just start using the 
shorter names.

Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(), 
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.

llvm-svn: 45464
2007-12-30 23:10:15 +00:00
Chris Lattner 6005589faf More cleanups for MachineOperand:
- Eliminate the static "print" method for operands, moving it
    into MachineOperand::print.
  - Change various set* methods for register flags to take a bool
    for the value to set it to.  Remove unset* methods.
  - Group methods more logically by operand flavor in MachineOperand.h

llvm-svn: 45461
2007-12-30 21:56:09 +00:00
Chris Lattner 5c4637816e Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm
llvm-svn: 45453
2007-12-30 20:49:49 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Chris Lattner a087a8d2ce remove attribution from lib Makefiles.
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
Nicolas Geoffray 31a2c3948e Fix unintented change from last commit
llvm-svn: 45282
2007-12-21 12:22:29 +00:00
Nicolas Geoffray 80c741e160 Enable EH for linux/ppc32 targets
llvm-svn: 45281
2007-12-21 12:19:44 +00:00
Dale Johannesen eadbf4b91c Enable EH on PPC Darwin. This basically works; there
are a couple of issues that show up with the optimizer,
but I don't think they're really EH problems.
(llvm-gcc testsuite users note:  By default the testsuite
uses the unwinding code that's built as part of your local
llvm-gcc, which does not work.  You need to trick it into
using the installed system unwinding code to get useful
results.)

llvm-svn: 45221
2007-12-19 21:54:36 +00:00
Bill Wendling ca77ecb40a Mark the "isRemat" instruction as never having side effects.
llvm-svn: 45190
2007-12-19 06:07:48 +00:00
Evan Cheng 6e68381e02 Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
llvm-svn: 44960
2007-12-12 23:12:09 +00:00
Chris Lattner f47015bc74 Fix a significant code quality regression I introduced on PPC64 quite
a while ago.  We now produce:

_foo:
	mflr r0
	std r0, 16(r1)
	ld r2, 16(r1)
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

instead of:

_foo:
	mflr r0
	std r0, 16(r1)
	lis r0, 0
	ori r0, r0, 16
	ldx r2, r1, r0
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

for:

void foo(void **X) {
  *X = __builtin_return_address(0);
}

on ppc64.

llvm-svn: 44701
2007-12-08 07:04:58 +00:00
Chris Lattner f6a8156e4f implement __builtin_return_addr(0) on ppc.
llvm-svn: 44700
2007-12-08 06:59:59 +00:00
Chris Lattner a6c8297e84 refactor some code to avoid overloading the name 'usesLR' in
different places to mean different things.  Document what the
one in PPCFunctionInfo means and when it is valid.

llvm-svn: 44699
2007-12-08 06:39:11 +00:00
Evan Cheng ab87e735cd Fix a compilation warning.
llvm-svn: 44691
2007-12-08 01:00:21 +00:00
Bill Wendling fb706bc52b Initial commit of the machine code LICM pass. It successfully hoists this:
_foo:
        li r2, 0
LBB1_1: ; bb
        li r5, 0
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr 

to:

_foo:
        li r2, 0
        li r5, 0
LBB1_1: ; bb
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr

ZOMG!! :-)

Moar to come...

llvm-svn: 44687
2007-12-07 21:42:31 +00:00
Evan Cheng 3b8a674469 Added canFoldMemoryOperand for PPC.
llvm-svn: 44623
2007-12-05 18:41:29 +00:00
Evan Cheng bb26301864 Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether
the stored register is killed.

llvm-svn: 44600
2007-12-05 03:14:33 +00:00
Evan Cheng f45a1d623c Remove redundant foldMemoryOperand variants and other code clean up.
llvm-svn: 44517
2007-12-02 08:30:39 +00:00
Evan Cheng 69fda0a716 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0.
llvm-svn: 44479
2007-12-01 02:07:52 +00:00
Chris Lattner 57ee7c6630 Implement ExpandOperationResult for ppc i64 fp->int, which fixes
CodeGen/Generic/fp_to_int.ll among others.  Its unclear why this 
just started failing...

llvm-svn: 44407
2007-11-28 18:44:47 +00:00
Chris Lattner 79ae9895f6 Fix a crash on invalid code due to memcpy lowering.
llvm-svn: 44378
2007-11-27 22:14:42 +00:00
Dale Johannesen 763e110a9f Fix .eh table linkage issues on Darwin. Some EH support
for Darwin PPC, but it's not fully working yet.

llvm-svn: 44258
2007-11-20 23:24:42 +00:00
Dan Gohman aad83c8ee5 Remove meaningless qualifiers from return types, avoiding compiler warnings.
llvm-svn: 44240
2007-11-19 20:46:23 +00:00
Dale Johannesen 7904708369 Revert previous; these files aren't ready to go in yet.
llvm-svn: 44057
2007-11-13 19:16:02 +00:00
Dale Johannesen 7a7085f6d3 Add parameter to getDwarfRegNum to permit targets
to use different mappings for EH and debug info;
no functional change yet.
Fix warning in X86CodeEmitter.

llvm-svn: 44056
2007-11-13 19:13:01 +00:00
Bill Wendling 77b13af9a6 Unifacalize the CALLSEQ{START,END} stuff.
llvm-svn: 44045
2007-11-13 09:19:02 +00:00
Bill Wendling f359fed9f9 Unify CALLSEQ_{START,END}. They take 4 parameters: the chain, two stack
adjustment fields, and an optional flag. If there is a "dynamic_stackalloc" in
the code, make sure that it's bracketed by CALLSEQ_START and CALLSEQ_END. If
not, then there is the potential for the stack to be changed while the stack's
being used by another instruction (like a call).

This can only result in tears...

llvm-svn: 44037
2007-11-13 00:44:25 +00:00
Anton Korobeynikov bfb139ec93 Completely forgot, that we have some debug information emission on PPC. This should fix
some regressions on ppc nightly tests.

llvm-svn: 44029
2007-11-12 23:36:13 +00:00
Owen Anderson 933b5b7e62 Add a flag for indirect branch instructions.
Target maintainers: please check that the instructions for your target are correctly marked.

llvm-svn: 44012
2007-11-12 07:39:39 +00:00
Anton Korobeynikov 4edfea438a Use TableGen to emit information for dwarf register numbers.
This makes DwarfRegNum to accept list of numbers instead.
Added three different "flavours", but only slightly tested on x86-32/linux.
Please check another subtargets if possible,

llvm-svn: 43997
2007-11-11 19:50:10 +00:00
Duncan Sands 283207a71c Eliminate the remaining uses of getTypeSize. This
should only effect x86 when using long double.  Now
12/16 bytes are output for long double globals (the
exact amount depends on the alignment).  This brings
globals in line with the rest of LLVM: the space
reserved for an object is now always the ABI size.
One tricky point is that only 10 bytes should be
output for long double if it is a field in a packed
struct, which is the reason for the additional
argument to EmitGlobalConstant.

llvm-svn: 43688
2007-11-05 00:04:43 +00:00
Nick Lewycky d954dcd138 Fix crash before main on ppc/linux with static constructors. PR1771
llvm-svn: 43676
2007-11-04 17:32:10 +00:00
Dale Johannesen 10f4152471 Disable a couple more things for ppcf128.
llvm-svn: 43267
2007-10-23 23:20:14 +00:00
Evan Cheng ec271b104c Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64.
llvm-svn: 43248
2007-10-23 06:42:42 +00:00
Evan Cheng bdbed66333 Use ptr type in the immediate field of a BxA instruction so we don't end up selecting 32-bit call instruction for ppc64.
llvm-svn: 43228
2007-10-22 19:46:19 +00:00
Chris Lattner b193576bc6 comment fixes
llvm-svn: 43168
2007-10-19 04:08:28 +00:00
Dale Johannesen 10432e5a67 More ppcf128 issues (maybe the last)?
llvm-svn: 43160
2007-10-19 00:59:18 +00:00
Evan Cheng 463e2ab0ac - Added getOpcodeAfterMemoryUnfold(). It doesn't unfold an instruction, but only returns the opcode of the instruction post unfolding.
- Fix some copy+paste bugs.

llvm-svn: 43153
2007-10-18 22:40:57 +00:00
Evan Cheng aa9a225699 Use SmallVectorImpl instead of SmallVector with hardcoded size in MRegister public interface.
llvm-svn: 43150
2007-10-18 21:29:24 +00:00
Chris Lattner 1366653e2f Fix a bug handling frame references in ppc inline asm when the frame offset
doesn't fit into 16 bits.

llvm-svn: 43032
2007-10-16 18:00:18 +00:00
Chris Lattner 06a4954e6e Change LowerFP_TO_SINT to create the specific code it needs instead of
unconditionally creating an i64 bitcast.  With the future legalizer
design, operation legalization can't introduce new nodes with illegal
types.

This fixes the rest of olden on ppc32.

llvm-svn: 43005
2007-10-15 20:14:52 +00:00
Evan Cheng cdf3609130 Revert 42908 for now.
llvm-svn: 42960
2007-10-14 05:57:21 +00:00
Dale Johannesen 2f6b6d6fb0 Fix type mismatch error in PPC Altivec (only causes
a problem when asserts are on).  From vecLib.

llvm-svn: 42959
2007-10-14 01:58:32 +00:00
Dan Gohman dc35bd79ca Change the names used for internal labels to use the current
function symbol name instead of a codegen-assigned function
number.

Thanks Evan! :-)

llvm-svn: 42908
2007-10-12 14:53:36 +00:00
Dan Gohman 9013eaff9a Mark vector pow, ctpop, cttz, and ctlz as Expand on PowerPC.
llvm-svn: 42904
2007-10-12 14:08:57 +00:00
Dan Gohman 482732af9d Set ISD::FPOW to Expand.
llvm-svn: 42881
2007-10-11 23:21:31 +00:00
Dale Johannesen 666323eacd Next PPC long double bits: ppcf128->i32 conversion.
Surprisingly complicated.
Adds getTargetNode for 2 outputs, no inputs (missing).

llvm-svn: 42822
2007-10-10 01:01:31 +00:00
Dan Gohman 71f0d7d76e When we start enabling SMUL_LOHI/UMUL_LOHI or SDIVREM/UDIVREM in
target-indepenent lowering, don't use them on PowerPC.

llvm-svn: 42755
2007-10-08 17:28:24 +00:00
Dale Johannesen f864ac96d8 Next powerpc long double bits. Comparisons work,
although not well, and shortening FP converts.

llvm-svn: 42672
2007-10-06 01:24:11 +00:00
Dale Johannesen c0154c06d6 First round of ppc long double. call/return and
basic arithmetic works.
Rename RTLIB long double functions to distinguish
different flavors of long double; the lib functions
have different names, alas.

llvm-svn: 42644
2007-10-05 20:04:43 +00:00
Evan Cheng f4cf5dcdd2 - Added a few target hooks to generate load / store instructions from / to any
address (not just from / to frameindexes).
- Added target hooks to unfold load / store instructions / SDNodes into separate
load, data processing, store instructions / SDNodes.

llvm-svn: 42621
2007-10-05 01:32:41 +00:00
Dan Gohman c731c97fac Use empty() member functions when that's what's being tested for instead
of comparing begin() and end().

llvm-svn: 42585
2007-10-03 19:26:29 +00:00
Dan Gohman a1d46c7d0a TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419
2007-09-27 23:12:31 +00:00
Evan Cheng c1e4e3743b Allow copyRegToReg to emit cross register classes copies.
Tested with "make check"!

llvm-svn: 42346
2007-09-26 06:25:56 +00:00
Dan Gohman 57211c5550 More explicit keywords.
llvm-svn: 42316
2007-09-25 20:27:06 +00:00
Evan Cheng 1ff71872c2 Honor user-defined section specification of a global, ignores whether its initializer is null.
llvm-svn: 42182
2007-09-21 00:41:19 +00:00
Devang Patel d29f938335 Do not override user specified section.
llvm-svn: 42179
2007-09-20 23:07:37 +00:00
Dan Gohman 9da02f5ee2 Remove isReg, isImm, and isMBB, and change all their users to use
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.

llvm-svn: 41958
2007-09-14 20:33:02 +00:00
Evan Cheng 5196f617a1 Fix comments.
llvm-svn: 41947
2007-09-14 01:57:02 +00:00
Bill Wendling 66c22e8fd6 Enable indirect encoding for the personality function
llvm-svn: 41873
2007-09-11 23:55:40 +00:00
Evan Cheng 3e18e504ae Remove (somewhat confusing) Imp<> helper, use let Defs = [], Uses = [] instead.
llvm-svn: 41863
2007-09-11 19:55:27 +00:00
Duncan Sands 86e0119822 Fold the adjust_trampoline intrinsic into
init_trampoline.  There is now only one
trampoline intrinsic.

llvm-svn: 41841
2007-09-11 14:10:23 +00:00
Chris Lattner 6777b72659 Add some notes about better flag handling.
llvm-svn: 41808
2007-09-10 21:43:18 +00:00
Bill Wendling 9929bc403d Add missing index versions of instructions to the map.
llvm-svn: 41776
2007-09-07 22:01:02 +00:00
Owen Anderson e2f23a3abf Add lengthof and endof templates that hide a lot of sizeof computations.
Patch by Sterling Stein!

llvm-svn: 41758
2007-09-07 04:06:50 +00:00
Bill Wendling b65ef38590 LVXL and STVXL are also a load and store resp.
llvm-svn: 41733
2007-09-05 23:47:12 +00:00
Bill Wendling b9bf812ba5 Add the 64-bit versions of the DS* Altivec instructions.
llvm-svn: 41717
2007-09-05 04:05:20 +00:00
Evan Cheng 4dbd9f254a Fix for PR1613: added 64-bit rotate left PPC instructions and patterns.
llvm-svn: 41711
2007-09-04 20:20:29 +00:00
Dale Johannesen 3cf889f75e Enhance APFloat to retain bits of NaNs (fixes oggenc).
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.

llvm-svn: 41632
2007-08-31 04:03:46 +00:00
Evan Cheng 9a25d98c86 Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots.
llvm-svn: 41597
2007-08-30 05:52:20 +00:00
Bill Wendling 10e18dea2a Use i64 on a PPC64 machine
llvm-svn: 41590
2007-08-30 00:59:19 +00:00
Chris Lattner d8c9cb9182 rename isOperandValidForConstraint to LowerAsmOperandForConstraint,
changing the interface to allow for future changes.

llvm-svn: 41384
2007-08-25 00:47:38 +00:00
Chris Lattner a124f69c52 Disable EH generation until PPC works 100%.
llvm-svn: 41360
2007-08-24 16:00:15 +00:00
Chris Lattner 92c6a65d4e new example
llvm-svn: 41318
2007-08-23 15:16:03 +00:00
Dale Johannesen f5124b36e4 Fix arguments for some Altivec instructions. From SWB.
llvm-svn: 40957
2007-08-09 00:49:19 +00:00
Dale Johannesen 4e7ff3593c Fix spelling of mtvscr and mfvscr.
llvm-svn: 40908
2007-08-07 23:08:00 +00:00
Dale Johannesen c5283ecd6f long double patch 2 of N. Handle it in TargetData.
(I've tried to get the info right for all targets,
but I'm not expert on all of them - check yours.)

llvm-svn: 40792
2007-08-03 20:20:50 +00:00
Dan Gohman 5f6a9da530 More explicit keywords.
llvm-svn: 40757
2007-08-02 21:21:54 +00:00
Evan Cheng 58c3c30921 Some out operands were incorrectly specified as input operands.
llvm-svn: 40697
2007-08-01 23:07:38 +00:00
Evan Cheng 581d2795dc Vector fneg must be expanded into fsub -0.0, X.
llvm-svn: 40586
2007-07-30 07:51:22 +00:00
Duncan Sands 644f917358 Support for trampolines, except for X86 codegen which is
still under discussion.

llvm-svn: 40549
2007-07-27 12:58:54 +00:00
Dan Gohman cf0a5349de Don't ignore the return value of AsmPrinter::doInitialization and
AsmPrinter::doFinalization.

llvm-svn: 40487
2007-07-25 19:33:14 +00:00
Nick Lewycky 5805c46e8f Fix debug info and globals filled with zeros.
llvm-svn: 40483
2007-07-25 03:48:45 +00:00
Evan Cheng ac1591be42 No more noResults.
llvm-svn: 40132
2007-07-21 00:34:19 +00:00
Evan Cheng 9d5df0a5f6 Added -print-emitted-asm to print out JIT generated asm to cerr.
llvm-svn: 40123
2007-07-20 21:56:13 +00:00
Evan Cheng 9081ab8127 Oops. These stores actually produce results.
llvm-svn: 40074
2007-07-20 00:20:46 +00:00
Evan Cheng 94b5a80b93 Change instruction description to split OperandList into OutOperandList and
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr  : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr  : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;

llvm-svn: 40033
2007-07-19 01:14:50 +00:00
Anton Korobeynikov 383a324735 Long live the exception handling!
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855
2007-07-14 14:06:15 +00:00
Dale Johannesen 2182f06f2d Skeleton of post-RA scheduler; doesn't do anything yet.
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.

llvm-svn: 39816
2007-07-13 17:13:54 +00:00
Lauro Ramos Venancio 09d73c0305 Assert when TLS is not implemented.
llvm-svn: 39737
2007-07-11 17:19:51 +00:00
Dan Gohman f8f531bf69 Change getCopyToParts and getCopyFromParts to always use target-endian
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.

llvm-svn: 38471
2007-07-09 20:59:04 +00:00
Chris Lattner 517290ae52 The various "getModuleMatchQuality" implementations should return
zero if they see a target triple they don't understand.

llvm-svn: 38463
2007-07-09 17:25:29 +00:00
Evan Cheng 76a97c5f8a Do away with ImmutablePredicateOperand.
llvm-svn: 37961
2007-07-06 23:22:46 +00:00
Gabor Greif e16561cd5d Here is the bulk of the sanitizing.
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
2007-07-05 17:07:56 +00:00
Evan Cheng ea4a82bcfb PPC conditional branch predicate does not change after isel.
llvm-svn: 37893
2007-07-05 07:09:50 +00:00
John Criswell 2660cef6d7 Convert .cvsignore files
llvm-svn: 37801
2007-06-29 16:35:07 +00:00
Evan Cheng 58d1eacd80 Prevent PPC::BCC first operand, the PRED number, from being isel'd into a LI instruction.
llvm-svn: 37790
2007-06-29 01:25:06 +00:00
Dan Gohman 309d3d51b3 Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.

llvm-svn: 37704
2007-06-22 14:59:07 +00:00
Chris Lattner 7936d91f70 describe an argument, hide it.
llvm-svn: 37650
2007-06-19 05:46:06 +00:00
Chris Lattner 944200be45 If a function is vararg, never pass inreg arguments in registers. Thanks to
Anton for half of this patch.

llvm-svn: 37641
2007-06-19 00:13:10 +00:00
Dan Gohman 5c4413120f Rename MVT::getVectorBaseType to MVT::getVectorElementType.
llvm-svn: 37579
2007-06-14 22:58:02 +00:00
Dale Johannesen c68554683d Handle blocks with 2 unconditional branches in AnalyzeBranch.
llvm-svn: 37571
2007-06-13 17:59:52 +00:00
Evan Cheng 5514bbef46 Add a utility routine to check for unpredicated terminator instruction.
llvm-svn: 37528
2007-06-08 21:59:56 +00:00
Nicolas Geoffray cff3e122b0 Implementation of compilation callback in PPC ELF32
llvm-svn: 37340
2007-05-29 16:33:18 +00:00
Dale Johannesen f9cbdc676c name change requested by review of previous patch
llvm-svn: 37289
2007-05-22 18:31:04 +00:00
Dale Johannesen 82810c8a13 Make tail merging the default, except on powerPC. There was no prior art
for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285
2007-05-22 17:14:46 +00:00
Evan Cheng fc94eb66d2 BlockHasNoFallThrough() now returns true if block ends with a return instruction.
llvm-svn: 37266
2007-05-21 18:44:17 +00:00
Dan Gohman c12dd5207d Apply this patch:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070514/049845.html

llvm-svn: 37240
2007-05-18 23:21:46 +00:00
Evan Cheng 99be49dd9b RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted.
llvm-svn: 37192
2007-05-18 00:05:48 +00:00
Chris Lattner 3e549e9d5f add support for 128-bit add/sub on ppc64
llvm-svn: 37158
2007-05-17 06:52:46 +00:00
Chris Lattner 0b7472da6f fix some subtle inline asm selection issues
llvm-svn: 37067
2007-05-15 01:31:05 +00:00
Evan Cheng d194a8603d PredicateOperand can be used as a normal operand for isel.
llvm-svn: 36947
2007-05-08 21:06:08 +00:00
Evan Cheng f50ba31ec6 R0 is a sub-register of X0, etc.
llvm-svn: 36939
2007-05-08 17:03:51 +00:00
Chris Lattner 90bb4fc96b revert accidental commit
llvm-svn: 36668
2007-05-03 16:40:25 +00:00
Chris Lattner c1a2a3b344 add support for printing offset of global
llvm-svn: 36667
2007-05-03 16:39:48 +00:00
Devang Patel 8c78a0bff0 Drop 'const'
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel e95c6ad802 Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
2007-05-02 21:39:20 +00:00
Devang Patel 09f162ca6a Do not use typeinfo to identify pass in pass manager.
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Evan Cheng 5662b21db1 eliminateFrameIndex() change.
llvm-svn: 36626
2007-05-01 09:13:03 +00:00
Nate Begeman 27a625a74b llvm bug #1350, parts 1, 2, and 3.
llvm-svn: 36618
2007-05-01 05:57:02 +00:00
Evan Cheng 0ba174534c Match MachineFunction::UsedPhysRegs changes.
llvm-svn: 36452
2007-04-25 22:13:27 +00:00
Evan Cheng 8cd224e81c Relex assertions to account for additional implicit def / use operands.
llvm-svn: 36430
2007-04-25 07:12:14 +00:00
Chris Lattner cb35c61a4b Fix PR1351 and CodeGen/PowerPC/2007-04-24-InlineAsm-I-Modifier.ll
llvm-svn: 36410
2007-04-24 22:51:03 +00:00
Chris Lattner 19ccd6226c Fix a bug in PPCTargetLowering::isLegalAddressingMode, scales other than 0/1/2
are always unsupported.

llvm-svn: 35835
2007-04-09 22:10:05 +00:00
Reid Spencer e9f516384d Squelch a warning about mismatch between sign of constant and sign of return
type.

llvm-svn: 35674
2007-04-04 22:07:24 +00:00
Nicolas Geoffray 23710a7da3 Starting implementation of the ELF32 ABI specification of varargs handling.
LowerVASTART emits the right code if the subtarget is ELF32, the other intrinsics
(VAARG, VACOPY and VAEND) are not yet implemented.

llvm-svn: 35625
2007-04-03 13:59:52 +00:00
Nicolas Geoffray b3e99a18ee The PPC64 ELF ABI is "intended to use the same structure layout and calling convention rules
as the 64-bit PowerOpen ABI" (Reference http://www.linux-foundation.org/spec/ELF/ppc64/).
Change all ELF tests to ELF32.

llvm-svn: 35624
2007-04-03 12:35:28 +00:00
Nicolas Geoffray ab559f6e3c Addition to the previous commit for getCalleeSavedRegClasses:
"The ELF ABI specifies F1-F8 registers as argument registers for double, not
F1-F10. This affects only ELF, not MachO."

llvm-svn: 35623
2007-04-03 10:57:49 +00:00
Nicolas Geoffray fbfc451ba9 The ELF ABI specifies F1-F8 registers as argument registers for double, not
F1-F10. This affects only ELF, not MachO.

llvm-svn: 35622
2007-04-03 10:27:07 +00:00
Chris Lattner 3e21eb7fd7 Fix a bug which caused us to never be able to use signed comparisons for
equality comparisons of a constant.  This allows us to codegen the 'sintzero'
loop in PR1288 as:

LBB1_1: ;cond_next
        li r4, 0
        addi r2, r2, 1
        stw r4, 0(r3)
        addi r3, r3, 4
        cmpwi cr0, r2, -1
        bne cr0, LBB1_1 ;cond_next

instead of:

LBB1_1: ;cond_next
        addi r2, r2, 1
        li r4, 0
        xoris r5, r2, 65535
        stw r4, 0(r3)
        addi r3, r3, 4
        cmplwi cr0, r5, 65535
        bne cr0, LBB1_1 ;cond_next

This implements CodeGen/PowerPC/compare-simm.ll, and also cuts 74
instructions out of kc++.

llvm-svn: 35590
2007-04-02 05:59:42 +00:00
Chris Lattner 075b4db621 add a note
llvm-svn: 35530
2007-03-31 07:06:25 +00:00
Chris Lattner 1eb94d973a implement the new addressing mode description hook.
llvm-svn: 35521
2007-03-30 23:15:24 +00:00
Lauro Ramos Venancio 682baf2dda "The C standards do say that "char" may either be a "signed char" or "unsigned
char" and it is up to the compilers implementation or the platform which is
followed."
http://www.arm.linux.org.uk/docs/faqs/signedchar.php

llvm-svn: 35382
2007-03-27 16:33:08 +00:00
Chris Lattner 26ad3e7191 add a note
llvm-svn: 35334
2007-03-25 05:10:46 +00:00
Chris Lattner 9c9e2f1af2 add a note
llvm-svn: 35330
2007-03-25 04:46:28 +00:00
Chris Lattner 8810241ebc Fix CodeGen/PowerPC/2007-03-24-cntlzd.ll
llvm-svn: 35329
2007-03-25 04:44:03 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint,
not just the first letter.  No functionality change.

llvm-svn: 35322
2007-03-25 02:14:49 +00:00
Nicolas Geoffray 4ea5217880 Protect R31's frame offset from being used by callee-saved registers, when R31
is the frame pointer.

llvm-svn: 35233
2007-03-21 16:44:14 +00:00
Evan Cheng 61f39d186c Added MRegisterInfo hook to re-materialize an instruction.
llvm-svn: 35205
2007-03-20 08:09:38 +00:00
Nicolas Geoffray 7aad92868c Stack and register alignment of call arguments in the ELF ABI
llvm-svn: 35083
2007-03-13 15:02:46 +00:00
Evan Cheng b9dce9db85 More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale.
llvm-svn: 35074
2007-03-12 23:29:01 +00:00
Evan Cheng ddf082082c Putting more constants which do not contain relocations into .literal{4|8|16}
llvm-svn: 35026
2007-03-08 08:31:54 +00:00
Evan Cheng d918477ac3 For Darwin, put constant data into .const, .const_data, .literal{4|8|16}
sections.

llvm-svn: 35017
2007-03-08 01:25:25 +00:00
Evan Cheng 8b8cac289b Minor interface change.
llvm-svn: 34967
2007-03-06 10:05:14 +00:00
Chris Lattner 4f2e4e0f92 Switch PPC return lower to use an autogenerated CC description.
llvm-svn: 34940
2007-03-06 00:59:59 +00:00
Nick Lewycky e6049c2f08 Emit low/high immediate loads properly for Linux/PPC.
llvm-svn: 34871
2007-03-03 05:29:51 +00:00
Nicolas Geoffray 75ab9799df Implemented the frameaddress intrinsic for PPC.
llvm-svn: 34787
2007-03-01 13:11:38 +00:00
Nate Begeman e0232ec706 More Mach-O writer improvements.
llvm-svn: 34740
2007-02-28 07:40:50 +00:00
Evan Cheng 95ae95a6a6 PEI now passes a RegScavenger ptr to eliminateFrameIndex.
llvm-svn: 34707
2007-02-28 00:21:17 +00:00
Nicolas Geoffray b524dfd557 Fix parenthesis for BCTRL_{ELF|Macho} test.
llvm-svn: 34668
2007-02-27 13:10:41 +00:00
Nicolas Geoffray 89d81878d2 Differentiate between the MachO and the ELF ABI the CALL instruction.
llvm-svn: 34667
2007-02-27 13:01:19 +00:00
Jim Laskey b6e200bd68 Duplicate use of LR, take 2.
llvm-svn: 34666
2007-02-27 11:55:45 +00:00
Evan Cheng 5d7ce57c13 Backing out Jim's LR spill changes. This was causing llvm-gcc bootstrapping
to infinite loop:
PPCMachineFunctionInfo.h updated: 1.2 -> 1.3
PPCRegisterInfo.cpp updated: 1.110 -> 1.111
PPCRegisterInfo.h updated: 1.28 -> 1.29

llvm-svn: 34652
2007-02-27 02:55:29 +00:00
Chris Lattner 535bd6d3ba always lower to RETFLAG, never leave it as just ret.
llvm-svn: 34639
2007-02-26 19:44:02 +00:00
Chris Lattner 1ee61ab414 no really, this is the right patch
llvm-svn: 34605
2007-02-25 20:01:40 +00:00
Chris Lattner 4d2f5f8740 always promote float varargs to double.
llvm-svn: 34604
2007-02-25 19:59:18 +00:00
Chris Lattner 84ab9a556c one important bugfix: PPC32 didn't have both elf and macho support for
external symbols and global addresses.  Add the missing ones.

one important workaround: PPCISD::CALL is matched by both PPCcall_ELF
and PPCcall_Macho, disable the _ELF patterns for now.

llvm-svn: 34601
2007-02-25 19:20:53 +00:00
Chris Lattner 43df5b335c implement support for the linux/ppc function call ABI. Patch by
Nicolas Geoffray!

llvm-svn: 34574
2007-02-25 05:34:32 +00:00
Chris Lattner b9bd34f54a Add XLForm_1_ext template, patch by Nicolas Geoffray.
llvm-svn: 34573
2007-02-25 05:07:49 +00:00
Chris Lattner 249edb8b67 Improve JIT support for linux/ppc: Patch by Nicolas Geoffray!
llvm-svn: 34572
2007-02-25 05:04:13 +00:00
Jim Laskey 2f28a3cf08 Don't spill LR as a callee saved register.
llvm-svn: 34533
2007-02-23 20:34:16 +00:00
Evan Cheng df5899258c By default, spills kills the register being stored.
llvm-svn: 34515
2007-02-23 01:10:04 +00:00
Chris Lattner 0416b204c9 remove obsolete file
llvm-svn: 34506
2007-02-22 23:48:43 +00:00
Jim Laskey e0008e23cf Simplify lowering and selection of exception ops.
llvm-svn: 34488
2007-02-22 14:56:36 +00:00
Jim Laskey 3796abea0f Support to provide exception and selector registers.
llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Jim Laskey 18fc09723c Add support for changes in DwarfWriter.
llvm-svn: 34478
2007-02-21 22:47:38 +00:00
Jim Laskey af76e0e58f Add TAI field for exception table section.
llvm-svn: 34477
2007-02-21 22:43:40 +00:00
Evan Cheng f7ed82da10 Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
llvm-svn: 34428
2007-02-19 21:49:54 +00:00
Reid Spencer da81bf4d3e For PR1207:
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
2007-02-19 03:20:00 +00:00
Evan Cheng 9865be6d40 Added getReservedRegs().
llvm-svn: 34376
2007-02-17 11:06:00 +00:00
Chris Lattner 1f7d60262e Fix ixaddrs as well, allowing ppc64 to compile to:
_test2:
        li r2, 0
        lis r3, 1
        std r2, 9024(r3)
        blr

instead of:

_test2:
        lis r2, 1
        li r3, 0
        ori r2, r2, 9024
        std r3, 0(r2)
        blr

This implements CodeGen/PowerPC/LargeAbsoluteAddr.ll:test2

llvm-svn: 34373
2007-02-17 06:57:26 +00:00
Chris Lattner 4a9c0bb147 Compile test/CodeGen/PowerPC/LargeAbsoluteAddr.ll to:
_test:
        lis r2, 743
        li r3, 0
        stw r3, 32751(r2)
        blr

instead of:

_test:
        li r2, 0
        stw r2, 32751(48693248)
        blr

Implement support for ppc64 as well, allowing it to produce better code.

llvm-svn: 34371
2007-02-17 06:44:03 +00:00
Chris Lattner 8091f28d1a fix incorrect encoding of vminsw.
llvm-svn: 34351
2007-02-16 21:20:09 +00:00
Chris Lattner 945e437c65 Generalize TargetData strings, to support more interesting forms of data.
Patch by Scott Michel.

llvm-svn: 34266
2007-02-14 05:52:17 +00:00
Chris Lattner c9088b4c8e add a note
llvm-svn: 34101
2007-02-09 17:38:01 +00:00
Nate Begeman ba52b94fa2 Remove fixed item
llvm-svn: 34081
2007-02-09 04:19:54 +00:00
Bill Wendling e796b6de45 Fixed comments.
llvm-svn: 34040
2007-02-08 06:05:08 +00:00
Bill Wendling 2aa9a42f24 Moved the MachOWriter and ELFWriter out of the Target/* files. Placed the
definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034
2007-02-08 01:39:44 +00:00
Bill Wendling 4e8ad36338 Dead files. Functionality has been taken over by the Add*Writer functions.
llvm-svn: 34029
2007-02-08 01:32:51 +00:00
Bill Wendling a883f55eca Moved the GetTargetRelocation method from PPCMachOWriter to here. It uses
non-Mach-O-specific information.

llvm-svn: 33819
2007-02-03 02:41:58 +00:00
Bill Wendling 2c350921e2 Moved the GetTargetRelocation method to the PPCMachOWriterInfo object. The
PPCMachOWriter is now trivial.

llvm-svn: 33818
2007-02-03 02:40:57 +00:00
Jim Laskey c3de9b4b14 Support for non-landing pad exception handling.
llvm-svn: 33755
2007-02-01 16:31:34 +00:00
Chris Lattner f7937005a3 Fix CodeGen/PowerPC/2007-01-31-InlineAsmAddrMode.ll
llvm-svn: 33732
2007-02-01 00:39:08 +00:00
Chris Lattner 37ebf9317b A relatively simple PPC optimization.
llvm-svn: 33709
2007-01-31 19:49:20 +00:00
Reid Spencer 5301e7c605 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
confusion with external linkage types.

llvm-svn: 33663
2007-01-30 20:08:39 +00:00
Evan Cheng 0e083d0161 Darwin -static should codegen static ctors / dtors to .constructor / .destructor sections.
llvm-svn: 33657
2007-01-30 08:04:53 +00:00
Jim Laskey 3f9f250928 Only gather frame info if debug or eh.
llvm-svn: 33639
2007-01-29 23:20:22 +00:00
Nate Begeman eda5997cc8 Finish off bug 680, allowing targets to custom lower frame and return
address nodes.

llvm-svn: 33636
2007-01-29 22:58:52 +00:00
Nate Begeman e3b09fbbb0 We'd still like to register allocate r2 on darwin before the callee-save
regs.

llvm-svn: 33635
2007-01-29 22:57:48 +00:00
Nate Begeman 17f250005a Update some of the llvm in the readme
llvm-svn: 33630
2007-01-29 21:21:22 +00:00
Jim Laskey b4a2f05d1c Landing pad-less eh for PPC.
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
Anton Korobeynikov 037c867b54 Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
2007-01-28 13:31:35 +00:00
Nate Begeman debcb5530c Fix a spelling error
llvm-svn: 33556
2007-01-26 22:40:50 +00:00
Nate Begeman f209495e93 Handle multiple functions, properly mangle symbols, and fix support for
scattered relocations.

llvm-svn: 33555
2007-01-26 22:39:48 +00:00
Jim Laskey c56315c2b5 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
for debugging and exception handling.

llvm-svn: 33550
2007-01-26 21:22:28 +00:00
Jim Laskey f9e5445ed4 Make LABEL a builtin opcode.
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Evan Cheng 313c2937f0 Fix comment.
llvm-svn: 33508
2007-01-25 22:48:25 +00:00
Evan Cheng 5acf2fbb43 - Tell PEI that PPC will handle stack frame rounding itself.
- Do not round up to max. alignment of stack object if it is > stack alignment.
  It will have to be handled with dynamic aligning code.

llvm-svn: 33505
2007-01-25 22:25:04 +00:00
Chris Lattner 48518548bd Fix test/CFrontend/2007-01-24-InlineAsmCModifier.c on PPC
llvm-svn: 33494
2007-01-25 02:52:50 +00:00
Jim Laskey f6c63fec92 Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves
by value so that clean up is less confusing (these vectors tend to be small.)

llvm-svn: 33488
2007-01-24 18:45:13 +00:00
Bill Wendling 06a03210af Make ivars private and use getters. Have the MachOWriter return "Mach-O
Writer" for the pass name.

llvm-svn: 33483
2007-01-24 07:13:56 +00:00
Bill Wendling 40cb811cf8 Add a field for and construction of the PPCMachOWriterInfo object.
llvm-svn: 33480
2007-01-24 03:41:36 +00:00
Bill Wendling 56f1058309 Move the getJTRelocation method out of here.
llvm-svn: 33479
2007-01-24 03:40:33 +00:00
Bill Wendling a1b7b8a485 New "TargetMachOWriterInfo" class. It holds target-specific information
that the MachOWriter needs in order to do its writing stuff 'n things.

llvm-svn: 33475
2007-01-24 03:36:05 +00:00
Evan Cheng 16e58be1bc hasFP() is now a virtual method of MRegisterInfo.
llvm-svn: 33455
2007-01-23 00:57:47 +00:00
Evan Cheng 9f3a7eb9b2 Double and long preferred alignment set to 8 bytes.
llvm-svn: 33447
2007-01-22 23:11:06 +00:00
Nick Lewycky 28c5b8618a Needed to build on PPC Linux.
llvm-svn: 33352
2007-01-19 04:36:02 +00:00
Chris Lattner 889d934d00 move contents of PR587 to here.
llvm-svn: 33333
2007-01-18 07:34:57 +00:00
Bill Wendling e750f61ac5 Have the OutputBuffer take the is64Bit and isLittleEndian booleans.
llvm-svn: 33316
2007-01-18 01:23:11 +00:00
Chris Lattner c1ea85b4c4 Modify emission of jump tables on darwin to emit an extra "l" label that
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315
2007-01-18 01:15:58 +00:00
Bill Wendling cd9c1f035a Changed to use the OutputBuffer instead of the methods in MachO and ELF
writers.

llvm-svn: 33311
2007-01-17 22:22:31 +00:00
Bill Wendling 38ee6519b7 Revert patch.
llvm-svn: 33298
2007-01-17 09:06:13 +00:00
Bill Wendling 05e5a5ee6c Create the specified TargetObjInfo and use it.
llvm-svn: 33291
2007-01-17 03:51:37 +00:00
Bill Wendling f758157385 New "TargetObjInfo" class. This holds information that the object writers will
use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

llvm-svn: 33286
2007-01-17 03:46:30 +00:00
Bill Wendling c7b2ab9bdf Instead of yet another enum indicating the "assembly language flavor",
just use the one that's in the subtarget.

llvm-svn: 33255
2007-01-16 09:29:17 +00:00
Bill Wendling e21237e59a Fix for PR1095:
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
2007-01-16 03:42:04 +00:00
Chris Lattner 3c84b551db add support for hidden visibility to darwin/ppc and linux/ppc targets
llvm-svn: 33200
2007-01-14 06:37:54 +00:00
Chris Lattner 72a56fc44c Disable the macho writer until it is 100% functional. Enabling it when
broken invites bug reports.

llvm-svn: 32961
2007-01-06 22:27:58 +00:00
Evan Cheng 8bc7ddb84d setSetCCIsExpensive is gone.
llvm-svn: 32941
2007-01-05 23:42:53 +00:00
Evan Cheng 74b46e8c05 Fix naming inconsistency.
llvm-svn: 32823
2007-01-02 21:33:40 +00:00
Jim Laskey 28663c73ef Changes from Nick Lewycky with a simplified PPCTargetAsmInfo.
llvm-svn: 32735
2006-12-21 20:26:09 +00:00
Jim Laskey 4c90a6df16 Oops.
llvm-svn: 32724
2006-12-20 21:35:00 +00:00
Jim Laskey c2c861d00e Original patch was overly complicated.
llvm-svn: 32723
2006-12-20 21:33:34 +00:00
Jim Laskey 41621a72f5 Changes to target powerpc for non-Darwin assemblers.
1. Patches from Nick Lewycky.
2. Code to filter register names and print them as numeric values on
non-Darwin systems.

llvm-svn: 32721
2006-12-20 20:56:46 +00:00
Chris Lattner 1ef9cd400d eliminate static ctors for Statistic objects.
llvm-svn: 32703
2006-12-19 22:59:26 +00:00
Rafael Espindola d7998d0e6d move ExtWeakSymbols to AsmPrinter
llvm-svn: 32648
2006-12-18 03:37:18 +00:00
Chris Lattner 360a14be02 Apply B. Scott Michel's patch for PR1054, thanks!
llvm-svn: 32630
2006-12-16 20:23:42 +00:00
Jim Laskey a0850e98ee Patterns no longer needed due to fix in the DAG combiner.
llvm-svn: 32612
2006-12-15 21:39:31 +00:00
Jim Laskey 73d307d12d Not all test cases are created equal. This fix is needed.
llvm-svn: 32605
2006-12-15 18:51:01 +00:00
Jim Laskey 38b1d53afe Not needed. Misinterpreted error message from other bug (Missing load/store
relocations.)

llvm-svn: 32604
2006-12-15 18:45:32 +00:00
Jim Laskey b0367c987e Missing load/store relocations.
llvm-svn: 32601
2006-12-15 16:44:10 +00:00
Jim Laskey 36d826dca2 Provide 64-bit support for i64 sextload<i8>.
llvm-svn: 32600
2006-12-15 14:34:11 +00:00
Jim Laskey f07cc990dd Provide support for FP_TO_UINT.
llvm-svn: 32599
2006-12-15 14:32:57 +00:00
Jim Laskey 59e7a777da Honor cpu directive, take two.
llvm-svn: 32492
2006-12-12 20:57:08 +00:00
Jim Laskey 8171e58bd9 Rollback changes to take a different tack.
llvm-svn: 32488
2006-12-12 19:26:50 +00:00
Jim Laskey 7c3cab9ddc Honor the command line specification for machine type.
llvm-svn: 32483
2006-12-12 16:07:33 +00:00
Jim Laskey 095e6f3044 Reduce number of instructions to load 64-bit constants.
llvm-svn: 32481
2006-12-12 13:23:43 +00:00
Chris Lattner f4646a7e54 Another step forward in PPC64 JIT support: we now no-longer need stubs
emitted for external globals in PPC64-JIT-PIC mode (which is good because
we didn't handle them before!).

This also fixes a bug handling the picbase delta, which we would get wrong
in some cases.

llvm-svn: 32451
2006-12-11 23:22:45 +00:00
Chris Lattner b1f3157638 getInstrItineraryData shouldn't copy the itineraries
llvm-svn: 32448
2006-12-11 21:42:55 +00:00
Jim Laskey 2b136a73bd Missing opcode.
llvm-svn: 32439
2006-12-11 18:45:56 +00:00
Jim Laskey e95909a4ef Layout proper frame for ppc64.
llvm-svn: 32436
2006-12-11 18:10:54 +00:00
Nate Begeman e8da58b3f9 Properly mangles symbol table names
Supports constant pools
Supports relocations to jump tables
Supports relocations within the data segment (global = address of global)
Allocates memory in a non-hacky for all non-code objects.

llvm-svn: 32430
2006-12-11 02:20:45 +00:00
Anton Korobeynikov 3b7c257cae Cleaned setjmp/longjmp lowering interfaces. Now we're producing right
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
2006-12-10 23:12:42 +00:00
Jim Laskey 6af2220815 Reverting until finding the cause of secondary bugs.
llvm-svn: 32413
2006-12-10 13:09:42 +00:00
Jim Laskey 04c832d4ab __PPC64CompilationCallback code was allowing registers to be clobbered by stub.
llvm-svn: 32412
2006-12-10 12:13:31 +00:00
Chris Lattner 09fecf9a47 this is an initial patch to switch the ppc64 jit over to working in PIC mode,
which allows the code to be above the 2G marker.  We still need to JIT emit
dyld stubs to support external, weak, common, etc globals, but that will
happen tomorrow.

llvm-svn: 32348
2006-12-08 04:54:03 +00:00
Chris Lattner 13535c2d93 fix incorrect encoding of rldicr, used by ppc64 function stubs, etc.
llvm-svn: 32341
2006-12-07 23:44:07 +00:00
Bill Wendling 9bfb1e1f29 What should be the last unnecessary <iostream>s in the library.
llvm-svn: 32333
2006-12-07 22:21:48 +00:00
Chris Lattner a9a817dc7d fix CodeGen/PowerPC/2006-12-07-LargeAlloca.ll on ppc64
llvm-svn: 32331
2006-12-07 22:15:58 +00:00
Chris Lattner d8e7451dc3 Fix i64 uint_to_fp on ppc64
llvm-svn: 32297
2006-12-07 01:24:16 +00:00
Chris Lattner 43c0eb839c implement sextinreg i8->i64 and i16->i64
llvm-svn: 32293
2006-12-06 21:46:13 +00:00
Chris Lattner 9472eb83c3 fix another sradi encoding bug. This fixes Olden/health with the ppc64 jit.
llvm-svn: 32291
2006-12-06 21:35:10 +00:00
Chris Lattner aeadac88ea fix the jit encoding of sradi, simplify the MDForm1 description.
llvm-svn: 32285
2006-12-06 20:02:54 +00:00
Chris Lattner 1fa392dbfa add relocation support for ppc64 branches.
llvm-svn: 32284
2006-12-06 19:40:04 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.

llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Jim Laskey 527c12f8e6 Make it easier for gdb to find the return address.
llvm-svn: 32277
2006-12-06 17:42:06 +00:00
Jim Laskey e4f4d048dd Restoration of the stack pointer after a deallocation of a alloca was not
updating the SP link.

llvm-svn: 32202
2006-12-04 22:04:42 +00:00
Evan Cheng 022030a425 Add weak reference directive.
llvm-svn: 32091
2006-12-01 20:47:11 +00:00
Evan Cheng b689d32b20 Copy and paste error. An initialized global cannot be a weak reference.
llvm-svn: 32075
2006-12-01 17:39:22 +00:00
Jim Laskey 1b0bc794e6 1. In ppc64 mode we need only use one GPR.
2. Float values need to be promoted to double when they are vararg.

llvm-svn: 32074
2006-12-01 16:30:47 +00:00
Jim Laskey 311622f912 ExternalWeak case in wrong location.
llvm-svn: 32073
2006-12-01 14:37:39 +00:00
Evan Cheng 5fb2c76d59 A initialized global variable cannot be extern weak. However, if a global value's initializer is itself a external weak symbol, emit the weak reference.
llvm-svn: 32069
2006-12-01 09:13:26 +00:00
Evan Cheng fa54c0b6fb Darwin PPC external weak linkage support.
llvm-svn: 32068
2006-12-01 07:56:37 +00:00
Chris Lattner 09ed0ff2ac Fix the CodeGen/PowerPC/vec_constants.ll regression.
llvm-svn: 32057
2006-12-01 01:45:39 +00:00
Evan Cheng aafeaef8c8 MachineInstr::setOpcode -> MachineInstr::setInstrDescriptor
llvm-svn: 32034
2006-11-30 07:12:03 +00:00
Chris Lattner 2f648fc55d Fix bug codegen'ing FP constant vectors with integer splats. Make sure the
created intrinsics have the right integer types.  This fixes
PowerPC/2006-11-29-AltivecFPSplat.ll

llvm-svn: 32024
2006-11-29 19:58:49 +00:00
Jim Laskey 152671f0bf Offset for load of 32-bit arg in 64-bit world was incorrect.
llvm-svn: 32019
2006-11-29 13:37:09 +00:00
Jim Laskey 40182179b6 Remove debug code.
llvm-svn: 31970
2006-11-28 18:27:02 +00:00
Jim Laskey ec05b046c7 Prime text sections to improve branch locality in large object files.
llvm-svn: 31969
2006-11-28 18:21:52 +00:00
Jim Laskey f4e2e009d9 32-bit int space was not accounted for properly in lowerCall.
llvm-svn: 31966
2006-11-28 14:53:52 +00:00
Evan Cheng 20350c4025 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
of opcode and number of operands.

llvm-svn: 31947
2006-11-27 23:37:22 +00:00
Reid Spencer 6968c497de Add newline at end of file.
llvm-svn: 31902
2006-11-25 05:41:02 +00:00
Chris Lattner ec5dbccdcf in ppc64-mode, don't allocate the 32-bit version of r13 either.
llvm-svn: 31884
2006-11-20 20:48:05 +00:00
Chris Lattner ac36360348 r13 is the thread pointer on darwin/ppc64, don't allocate it.
llvm-svn: 31882
2006-11-20 19:33:51 +00:00
Chris Lattner 2cca385fbb on ppc64, float arguments take 8-byte stack slots not 4-byte stack slots.
Also, valist should create a pointer RC reg class value, not a GPRC value.

llvm-svn: 31840
2006-11-18 01:57:19 +00:00
Chris Lattner 572e238c14 make sure to safe LR8 in the right stack slot for PPC64
llvm-svn: 31839
2006-11-18 01:34:43 +00:00
Chris Lattner 9ca15c8914 Pretty print 'rldicr r2, r2, 2, 61' as 'sldi r2, r2, 2'.
llvm-svn: 31838
2006-11-18 01:23:56 +00:00
Chris Lattner 542dfd5510 Rewrite the branch selector to be correct in the face of large functions.
The algorithm it used before wasn't 100% correct, we now use an iterative
expansion model.  This fixes assembler errors when compiling 403.gcc with
tail merging enabled.

Change the way the branch selector works overall: Now, the isel generates
PPC::BCC instructions (as it used to) directly, and these BCC instructions
are emitted to the output or jitted directly if branches don't need
expansion.  Only if branches need expansion are instructions rewritten
and created.  This should make branch select faster, and eliminates the
Bxx instructions from the .td file.

llvm-svn: 31837
2006-11-18 00:32:03 +00:00
Chris Lattner 33fc1d45e5 add encoding for BCC, after finally wrestling strange ppc/tblgen endianness
issues to the ground.

llvm-svn: 31836
2006-11-17 23:53:28 +00:00
Chris Lattner be9377a1e3 convert PPC::BCC to use the 'pred' operand instead of separate predicate
value and CR reg #.  This requires swapping the order of these everywhere
that touches BCC and requires us to write custom matching logic for
PPCcondbranch :(

llvm-svn: 31835
2006-11-17 22:37:34 +00:00
Chris Lattner e0263794f4 rename PPC::COND_BRANCH to PPC::BCC
llvm-svn: 31834
2006-11-17 22:14:47 +00:00
Chris Lattner 8c6a41ea12 start using PPC predicates more consistently.
llvm-svn: 31833
2006-11-17 22:10:59 +00:00
Jim Laskey 73106b5e2a Assert unhandled case.
llvm-svn: 31828
2006-11-17 18:49:39 +00:00
Jim Laskey 1823346b3e 1. Ignore the -disable-fp-elim when the routine is a leaf.
2. Offsets on 64-bit stores are still in bytes.

llvm-svn: 31824
2006-11-17 16:09:31 +00:00
Jim Laskey 91542a4f2d Typo. Fix the nightly tests.
llvm-svn: 31823
2006-11-17 14:06:41 +00:00
Chris Lattner 3b7261b18e implement a todo: change a map into a vector
llvm-svn: 31805
2006-11-17 01:52:23 +00:00
Chris Lattner be1a4d80b3 fix typo
llvm-svn: 31799
2006-11-17 00:49:36 +00:00
Chris Lattner a715288b40 implicit_def_vrrc doesn't generate code.
llvm-svn: 31797
2006-11-16 23:49:52 +00:00
Jim Laskey 48850c10c0 This is a general clean up of the PowerPC ABI. Address several problems and
bugs including making sure that the TOS links back to the previous frame,
that the maximum call frame size is not included twice when using frame
pointers, no longer growing the frame on calls, double storing of SP and
a cleaner/faster dynamic alloca.

llvm-svn: 31792
2006-11-16 22:43:37 +00:00
Chris Lattner 30055b9208 fix a regression that I introduced. stdu should scale the offset by 4
before printing it.

llvm-svn: 31791
2006-11-16 21:45:30 +00:00
Chris Lattner 96d7386006 add a statistic
llvm-svn: 31785
2006-11-16 18:13:49 +00:00
Chris Lattner a7ff5162b0 fix broken encoding
llvm-svn: 31778
2006-11-16 01:01:28 +00:00
Chris Lattner e742d9a4b7 add ppc64 r+i stores with update.
llvm-svn: 31776
2006-11-16 00:57:19 +00:00
Chris Lattner 6f5840c409 add patterns for ppc32 preinc stores. ppc64 next.
llvm-svn: 31775
2006-11-16 00:41:37 +00:00
Chris Lattner 3a494989a6 switch these back to the 'bad old way'
llvm-svn: 31774
2006-11-16 00:33:34 +00:00
Chris Lattner b4e911d15a Fix ppc64 epilog bug.
llvm-svn: 31771
2006-11-15 23:35:30 +00:00
Chris Lattner 5771156be0 Stop using isTwoAddress, switching to operand constraints instead.
Tell the codegen emitter that specific operands are not to be encoded, fixing
JIT regressions w.r.t. pre-inc loads and stores (e.g. lwzu, which we generate
even when general preinc loads are not enabled).

llvm-svn: 31770
2006-11-15 23:24:18 +00:00
Evan Cheng dc2c8748a7 Properly transfer kill / dead info.
llvm-svn: 31765
2006-11-15 20:58:11 +00:00
Chris Lattner 474b5b7c95 fix ldu/stu jit encoding. Swith 64-bit preinc load instrs to use memri
addrmodes.

llvm-svn: 31757
2006-11-15 19:55:13 +00:00
Chris Lattner 0e117c7e9d Fix the PPC regressions last night
llvm-svn: 31752
2006-11-15 17:40:51 +00:00
Chris Lattner 1396961e85 Switch loads over to use memri as the operand instead of a reg/imm operand
pair for cleanliness.  Add instructions for PPC32 preinc-stores with commented
out patterns.  More improvement is needed to enable the patterns, but we're
getting close.

llvm-svn: 31749
2006-11-15 02:43:19 +00:00
Chris Lattner e79a451475 group load and store instructions together. No functionality change.
llvm-svn: 31736
2006-11-14 19:19:53 +00:00
Chris Lattner 44dbdbe5cf Rework PPC64 calls. Now we have a LR8/CTR8 register which the PPC64 calls
clobber.  This allows LR8 to be save/restored correctly as a 64-bit quantity,
instead of handling it as a 32-bit quantity.  This unbreaks ppc64 codegen when
the code is actually located above the 4G boundary.

llvm-svn: 31734
2006-11-14 18:44:47 +00:00
Chris Lattner b542925b22 remove a ton of custom selection logic no longer needed
llvm-svn: 31733
2006-11-14 18:43:11 +00:00
Chris Lattner 97ff46b3cc lower "X = seteq Y, Z" to '(shr (ctlz (xor Y, Z)), 5)' instead of
'(shr (ctlz (sub Y, Z)), 5)'.

The use of xor better exposes the operation to bit-twiddling logic in the
dag combiner.  For example, this:

typedef struct {
  unsigned prefix : 4;
  unsigned code : 4;
  unsigned unsigned_p : 4;
} tree_common;

int foo(tree_common *a, tree_common *b) {
  return a->code == b->code;
}

Now compiles to:

_foo:
        lwz r2, 0(r4)
        lwz r3, 0(r3)
        xor r2, r3, r2
        rlwinm r2, r2, 28, 28, 31
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

instead of:

_foo:
        lbz r2, 3(r4)
        lbz r3, 3(r3)
        srwi r2, r2, 4
        srwi r3, r3, 4
        subf r2, r2, r3
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

saving a cycle.

llvm-svn: 31725
2006-11-14 05:28:08 +00:00
Chris Lattner 683712583a minor tweaks, reject vector preinc.
llvm-svn: 31717
2006-11-14 01:38:31 +00:00
Evan Cheng dbd3d294e6 Matches MachineInstr changes.
llvm-svn: 31712
2006-11-13 23:36:35 +00:00
Chris Lattner 1121e50f7e teach the g5 hazard recognizer about update loads. This fixes
Ptrdist/anagram among others.

llvm-svn: 31708
2006-11-13 20:11:06 +00:00
Jim Laskey 1dfc6110ff Make sure stack link is set in 64-bit.
llvm-svn: 31690
2006-11-11 22:22:07 +00:00
Chris Lattner 0d550cc56c implement proper PPC64 prolog/epilog codegen.
llvm-svn: 31684
2006-11-11 19:05:28 +00:00
Jim Laskey 66c502b54a Running with frame pointers prevented debugging, external probes and
potentially some system calls/exception handling from working.  TOS must always
link to previous frame.  This is a short term workaround until alloca scheme is
reworked.

llvm-svn: 31677
2006-11-11 10:21:58 +00:00
Chris Lattner c5102bfc7c allow the offset of a preinc'd load to be the low-part of a global. This
produces this clever code:

_millisecs:
        lis r2, ha16(_Time.1182)
        lwzu r3, lo16(_Time.1182)(r2)
        lwz r2, 4(r2)
        addic r4, r2, 1
        addze r3, r3
        blr

instead of this:

_millisecs:
        lis r2, ha16(_Time.1182)
        la r3, lo16(_Time.1182)(r2)
        lwz r2, lo16(_Time.1182)(r2)
        lwz r3, 4(r3)
        addic r4, r3, 1
        addze r3, r2
        blr

for:

long %millisecs() {
        %tmp = load long* %Time.1182            ; <long> [#uses=1]
        %tmp1 = add long %tmp, 1                ; <long> [#uses=1]
        ret long %tmp1
}

llvm-svn: 31673
2006-11-11 04:53:30 +00:00
Chris Lattner 2ff632c54b Mark operands as symbol lo instead of imm32 so that they print lo(x) around
globals.

llvm-svn: 31672
2006-11-11 04:51:36 +00:00
Chris Lattner b314b155ed ppc64 doesn't have lwau, don't attempt to form it.
llvm-svn: 31656
2006-11-11 00:08:42 +00:00
Chris Lattner c9fa36d706 implement preinc support for r+i loads on ppc64
llvm-svn: 31654
2006-11-10 23:58:45 +00:00
Chris Lattner 6c8656a6b1 dform 8/9 are identical to dform 1
llvm-svn: 31637
2006-11-10 17:51:02 +00:00
Chris Lattner ce6455489a add an initial cut at preinc loads for ppc32. This is broken for ppc64
(because the 64-bit reg target versions aren't implemented yet), doesn't
support r+r addr modes, and doesn't handle stores, but it works otherwise. :)

This is disabled unless -enable-ppc-preinc is passed to llc for now.

llvm-svn: 31621
2006-11-10 02:08:47 +00:00
Chris Lattner cd436327f1 add note about ugly codegen with preinc
llvm-svn: 31617
2006-11-10 01:33:53 +00:00
Evan Cheng 36a8fbf771 PPC supports i32 / i64 pre-inc load / store.
llvm-svn: 31599
2006-11-09 19:11:50 +00:00
Evan Cheng b15000736c Rename ISD::MemOpAddrMode to ISD::MemIndexedMode
llvm-svn: 31595
2006-11-09 17:55:04 +00:00
Evan Cheng 6cd0909da7 Match tblegen changes.
llvm-svn: 31571
2006-11-08 20:34:28 +00:00
Chris Lattner a801fcedd3 Refactor all the addressing mode selection stuff into the isel lowering
class, where it can be used for preinc formation.

llvm-svn: 31536
2006-11-08 02:15:41 +00:00
Chris Lattner 6a5a4f85d3 correct the (currently unused) pattern for lwzu.
llvm-svn: 31535
2006-11-08 02:13:12 +00:00
Chris Lattner be7033b346 add a note from viterbi
llvm-svn: 31506
2006-11-07 18:30:21 +00:00
Chris Lattner d94477f6c9 fix encoding of BLR
llvm-svn: 31485
2006-11-07 01:51:50 +00:00
Chris Lattner 2959789c92 encode BLR predicate info for the JIT
llvm-svn: 31450
2006-11-04 05:42:48 +00:00
Chris Lattner 6be726048e Go through all kinds of trouble to mark 'blr' as having a predicate operand
that takes a register and condition code.  Print these pieces of BLR the
right way, even though it is currently set to 'always'.

Next up: get the JIT encoding right, then enhance branch folding to produce
predicated blr for simple examples.

llvm-svn: 31449
2006-11-04 05:27:39 +00:00
Chris Lattner c8a68d08c3 Describe PPC predicates, which are a pair of CR# and condition.
llvm-svn: 31438
2006-11-03 23:53:25 +00:00
Chris Lattner 895d199348 remove dead vars
llvm-svn: 31433
2006-11-03 23:46:45 +00:00
Chris Lattner 2de0910a1b fix a bug reid noticed
llvm-svn: 31385
2006-11-02 23:39:53 +00:00
Reid Spencer de46e48420 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner 584a11ae22 Implement the getRegForInlineAsmConstraint method for PPC. With recent
sdisel changes, this eliminates a ton of copies around common inline asms.
For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31367
2006-11-02 01:44:04 +00:00
Chris Lattner 8c6949e5b2 Change the prototype for TargetLowering::isOperandValidForConstraint
llvm-svn: 31318
2006-10-31 19:40:43 +00:00
Anton Korobeynikov aa4c0f9374 1. Clean up code due to changes in SwitchTo*Section(2)
2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311
2006-10-31 08:31:24 +00:00
Chris Lattner 3e36e07db2 fix miscompilation of llvm.isunordered, where we branched on the opposite
condition.  This fixes miscompilation of Olden/bh and many others.

llvm-svn: 31301
2006-10-30 23:02:25 +00:00
Evan Cheng 0d41d19427 All targets expand BR_JT for now.
llvm-svn: 31294
2006-10-30 08:02:39 +00:00
Chris Lattner 113f7470e6 implement the BlockHasNoFallThrough hook
llvm-svn: 31264
2006-10-28 17:35:02 +00:00
Evan Cheng ae8c29a7d3 Doh. Must check if GV is constant first before putting it in .cstring.
llvm-svn: 31253
2006-10-28 05:56:51 +00:00
Chris Lattner acc6b37d0d don't dist internal readme's
llvm-svn: 31246
2006-10-28 00:49:54 +00:00
Chris Lattner 28174f5a3a this doesn't occur any more in mason
llvm-svn: 31236
2006-10-27 22:02:19 +00:00
Chris Lattner 4c0cc53da1 the code in question is now:
cmpw cr0, r7, r3
        ble cr0, LBB1_5 ;bb25
LBB1_8: ;bb17
        cmpw cr0, r8, r5
        bgt cr0, LBB1_2 ;bb

which is just as good as crnand.

llvm-svn: 31235
2006-10-27 22:00:55 +00:00
Evan Cheng e1e06c2de8 Place cstrings in .cstring section.
llvm-svn: 31207
2006-10-26 21:48:57 +00:00
Devang Patel 71b99297aa Move getPreferredAlignmentLog from AsmPrinter to TargetData
llvm-svn: 31171
2006-10-24 20:32:14 +00:00
Chris Lattner d43e8a7429 Add intrinsics for the rest of the DCB* instructions.
llvm-svn: 31148
2006-10-24 01:08:42 +00:00
Chris Lattner 23f22de26f Implement support for branch reversal, fix a bug in branch analysis.
This provides stuff like:

        cmpw cr0, r15, r29
        mr r14, r15
-       bge cr0, LBB3_111       ;bb656
-       b LBB3_90       ;bb501
+       blt cr0, LBB3_90        ;bb501
 LBB3_111:      ;bb656
        lwz r18, 68(r1)

which is particularly good for dispatch group formation.

llvm-svn: 31101
2006-10-21 06:03:11 +00:00
Chris Lattner d881660366 Simplify code, no functionality change
llvm-svn: 31097
2006-10-21 05:42:09 +00:00
Chris Lattner 94e04442eb implement support for inserting a cond branch
llvm-svn: 31096
2006-10-21 05:36:13 +00:00
Chris Lattner 454436dcc5 set the ppc64 stack pointer right, dynamic alloca now works for ppc64
llvm-svn: 31028
2006-10-18 01:20:43 +00:00
Chris Lattner ab4df83426 Expand alloca for ppc64
llvm-svn: 31027
2006-10-18 01:18:48 +00:00
Chris Lattner 0408e5b7ce expose DWARF_LABEL opcode# so the branch folder can update debug info properly.
llvm-svn: 31024
2006-10-17 22:41:45 +00:00
Chris Lattner a61f0105bd add support for inserting an uncond branch
llvm-svn: 31003
2006-10-17 18:06:55 +00:00
Jim Laskey 2794184191 Use S_debug for dwarf info.
llvm-svn: 30994
2006-10-17 11:30:57 +00:00
Chris Lattner a47294ed7a implement branch inspection/modification methods.
llvm-svn: 30946
2006-10-13 21:21:17 +00:00
Evan Cheng ab51cf2e78 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.
llvm-svn: 30945
2006-10-13 21:14:26 +00:00
Chris Lattner be131662c3 add note
llvm-svn: 30937
2006-10-13 20:20:58 +00:00
Chris Lattner cf56917053 set isBarrier correctly
llvm-svn: 30936
2006-10-13 19:10:34 +00:00
Chris Lattner 4dc4f30a48 Correctly handle instruction separators.
llvm-svn: 30935
2006-10-13 17:56:02 +00:00
Chris Lattner 7374bc0577 mark adjcallstack up/down as clobbering and using the SP
llvm-svn: 30908
2006-10-12 17:56:34 +00:00
Evan Cheng 577ef7694e Add properties to ComplexPattern.
llvm-svn: 30891
2006-10-11 21:03:53 +00:00
Evan Cheng e71fe34d75 Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.
llvm-svn: 30844
2006-10-09 20:57:25 +00:00
Evan Cheng df9ac47e5e Make use of getStore().
llvm-svn: 30759
2006-10-05 23:01:46 +00:00
Chris Lattner 8cfd10eff3 Don't bother setting JumpTableTextSection, it is about to disappear
llvm-svn: 30745
2006-10-05 03:13:59 +00:00
Chris Lattner a6a570e02f Pass the MachineFunction into EmitJumpTableInfo.
llvm-svn: 30742
2006-10-05 03:01:21 +00:00
Chris Lattner 028d663ee6 Move getSectionForFunction to AsmPrinter, change it to return a string.
llvm-svn: 30735
2006-10-05 02:42:20 +00:00
Chris Lattner 0d236450aa implement DarwinTargetAsmInfo::getSectionForFunction, use it when outputting
function bodies

llvm-svn: 30733
2006-10-05 00:35:50 +00:00
Chris Lattner 41e22a5419 emit jump table before debug info
llvm-svn: 30731
2006-10-05 00:26:05 +00:00
Chris Lattner aad26a19f0 Always emit the jump table after the function so it's part of the same 'atom'
as the function body.

llvm-svn: 30730
2006-10-05 00:24:46 +00:00
Evan Cheng 5d9fd977d3 Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
2006-10-04 00:56:09 +00:00
Chris Lattner d32cb5ee7f wrap long lines
llvm-svn: 30662
2006-09-28 23:32:43 +00:00
Chris Lattner 78370606d0 Shift amounts are always 32-bits, even in 64-bit mode. This fixes
CodeGen/PowerPC/2006-09-28-shift_64.ll

llvm-svn: 30652
2006-09-28 20:48:45 +00:00
Chris Lattner 67f8cc51f4 Use abstract private/comment directives, to increase portability to ppc/linux
llvm-svn: 30621
2006-09-27 02:55:21 +00:00
Chris Lattner ad4e7eb59e Compile:
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

llvm-svn: 30605
2006-09-26 03:39:53 +00:00
Nate Begeman d31efd190f Fold AND and ROTL more often
llvm-svn: 30577
2006-09-22 05:01:56 +00:00
Chris Lattner a81a75c390 The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass
should create the right asmprinter subclass.

llvm-svn: 30542
2006-09-20 17:12:19 +00:00
Chris Lattner 8597a2fc4e Wrap some darwin'isms with isDarwin checks.
llvm-svn: 30541
2006-09-20 17:07:15 +00:00
Chris Lattner fba9e8f422 item done
llvm-svn: 30518
2006-09-20 06:41:56 +00:00
Chris Lattner f62f090ea1 This is already done
llvm-svn: 30512
2006-09-20 04:59:33 +00:00
Chris Lattner da9b1a9322 Improve PPC64 equality comparisons like PPC32 comparisons.
llvm-svn: 30510
2006-09-20 04:33:27 +00:00
Chris Lattner aa3926b7ea Two improvements:
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next

llvm-svn: 30509
2006-09-20 04:25:47 +00:00
Chris Lattner ab33d350a7 Add a note that we should match rlwnm better
llvm-svn: 30508
2006-09-20 03:59:25 +00:00
Chris Lattner 601b86513d Legalize is no longer limited to cleverness with just constant shift amounts.
Allow it to be clever when possible and fall back to the gross code when needed.

This allows us to compile:

long long foo1(long long X, int C) {
  return X << (C|32);
}
long long foo2(long long X, int C) {
  return X << (C&~32);
}

to:
_foo1:
        rlwinm r2, r5, 0, 27, 31
        slw r3, r4, r2
        li r4, 0
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        slw r3, r3, r2
        srw r5, r4, r5
        or r3, r3, r5
        slw r4, r4, r2
        blr

instead of:

_foo1:
        ori r2, r5, 32
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr

llvm-svn: 30507
2006-09-20 03:47:40 +00:00
Chris Lattner 3c48ea54ee Fold the PPCISD shifts when presented with 0 inputs. This occurs for code
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479
2006-09-19 05:22:59 +00:00
Chris Lattner 2aa98e0363 add a note
llvm-svn: 30377
2006-09-14 20:56:30 +00:00
Evan Cheng 9a083a4121 Reflects MachineConstantPoolEntry changes.
llvm-svn: 30279
2006-09-12 21:04:05 +00:00
Nate Begeman a0d95a8da9 Behold, more work on relocations. Things are looking pretty good now.
llvm-svn: 30240
2006-09-10 23:03:44 +00:00
Nate Begeman 69df6132d7 First pass at supporting relocations. Relocations are written correctly to
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.

llvm-svn: 30207
2006-09-08 22:42:09 +00:00
Jim Laskey 177405376c Missing tab
llvm-svn: 30188
2006-09-08 13:06:56 +00:00
Nate Begeman c9db83306f We actually do support object file writing, so don't return true (error)
llvm-svn: 30173
2006-09-08 03:42:15 +00:00
Jim Laskey ae92ce8798 1. Remove condition on delete.
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
2006-09-07 23:39:26 +00:00
Jim Laskey 261779bb45 Make target asm info a property of the target machine.
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
Jim Laskey 0e83541f8b Break out target asm info into separate files.
llvm-svn: 30161
2006-09-07 22:05:02 +00:00
Jim Laskey a6211dcdad Separate target specific asm properties from the asm printers.
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
Chris Lattner af23f9b5f6 Completely eliminate def&use operands. Now a register operand is EITHER a
def operand or a use operand.

llvm-svn: 30109
2006-09-05 02:31:13 +00:00
Chris Lattner 12e97307a1 Completely rearchitect the interface between targets and the pass manager.
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.

llvm-svn: 30081
2006-09-04 04:14:57 +00:00
Chris Lattner 0fc4541c67 Simplify target construction.
llvm-svn: 30070
2006-09-03 18:44:02 +00:00
Jim Laskey 2eebe8b05e Handle callee saved registers in dwarf frame info (lead up to exception
handling.)

llvm-svn: 29954
2006-08-29 16:24:26 +00:00
Nate Begeman 18f0329cfc Make ppc64 jit kinda work right. About 2/3 of Olden passes with this,
there are clearly some encoding bugs lurking in there somewhere.

llvm-svn: 29949
2006-08-29 02:30:59 +00:00
Reid Spencer e7141c8be6 For PR387:
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
2006-08-28 01:02:49 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Evan Cheng c3acfc0b10 Do not use getTargetNode() and SelectNodeTo() which takes more than 3
SDOperand arguments. Use the variants which take an array and number instead.

llvm-svn: 29907
2006-08-27 08:14:06 +00:00
Evan Cheng 34b70eea5c SelectNodeTo now returns a SDNode*.
llvm-svn: 29901
2006-08-26 08:00:10 +00:00
Evan Cheng 61413a3d72 Select() no longer require Result operand by reference.
llvm-svn: 29898
2006-08-26 05:34:46 +00:00
Evan Cheng ab8297f92d Match tblgen changes.
llvm-svn: 29895
2006-08-26 01:07:58 +00:00
Evan Cheng 1b200574ad Add a comment.
llvm-svn: 29889
2006-08-25 23:29:06 +00:00
Evan Cheng d7572fb234 Encode pc-relative conditional branch offset as pc+(num of bytes / 4). The
asm printer will print it as offset*4. e.g. bne cr0, $+8.

The PPC code emitter was expecting the offset to be number of instructions, not
number of bytes. This fixes a whole bunch of JIT failures.

llvm-svn: 29885
2006-08-25 21:54:44 +00:00
Jim Laskey d51ce619c3 Fix some comments.
llvm-svn: 29880
2006-08-25 19:40:59 +00:00
Nate Begeman 3cb3921a60 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
does emit linkable .o files in very simple cases.

llvm-svn: 29850
2006-08-23 21:08:52 +00:00
Chris Lattner 60f1eecd3a Constify some methods. Patch provided by Anton Vayvod, thanks!
llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Chris Lattner bc485fdc4c Fix PowerPC/2006-08-15-SelectionCrash.ll and simplify selection code.
llvm-svn: 29715
2006-08-15 23:48:22 +00:00
Nate Begeman 984c1a4a8f Emit .set directives for jump table entries when possible, which reduces
the number of relocations in object files, shrinkifying them.

llvm-svn: 29650
2006-08-12 21:29:52 +00:00
Chris Lattner 095e4ad2ea Fix a bug in a recent refactoring that broke a bunch of stuff.
llvm-svn: 29649
2006-08-12 07:20:05 +00:00
Chris Lattner ed728e8dc9 Eliminate use of getNode that takes a vector.
llvm-svn: 29614
2006-08-11 17:38:39 +00:00
Chris Lattner d66f14e846 Convert vectors to fixed sized arrays and smallvectors. Eliminate use of getNode that takes a vector.
llvm-svn: 29609
2006-08-11 17:18:05 +00:00
Chris Lattner 66f1fbaaad Fix miscompilation of float vector returns. Compile code to this:
_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
        blr

instead of:

_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
***     vor f1, v2, v2
        blr

llvm-svn: 29607
2006-08-11 16:47:32 +00:00
Evan Cheng bd1c5a8fb8 Match tablegen changes.
llvm-svn: 29604
2006-08-11 09:08:15 +00:00
Evan Cheng 81b645a76b CALLSEQ_* produces chain even if that's not needed.
llvm-svn: 29603
2006-08-11 09:03:33 +00:00
Chris Lattner c24a1d3093 Start eliminating temporary vectors used to create DAG nodes. Instead, pass
in the start of an array and a count of operands where applicable.  In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap.  In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.

I updated a lot of code calling getNode that takes a vector, but ran out of
time.  The rest of the code should be updated, and these methods should be
removed.

We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.

It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.

llvm-svn: 29566
2006-08-08 02:23:42 +00:00
Evan Cheng b9d34bd098 Match tablegen isel changes.
llvm-svn: 29549
2006-08-07 22:28:20 +00:00
Chris Lattner 8298265042 Fix some ppc64 issues with vector code.
llvm-svn: 29384
2006-07-28 16:45:47 +00:00
Evan Cheng b572401bea Remove InFlightSet hack. No longer needed.
llvm-svn: 29373
2006-07-28 00:47:19 +00:00
Evan Cheng 78bf1074fc Resolve BB references with relocation.
llvm-svn: 29351
2006-07-27 18:21:10 +00:00
Evan Cheng 7ec7b467df synchronizeICache removeed from TargetJITInfo.
llvm-svn: 29348
2006-07-27 17:33:48 +00:00
Evan Cheng f300896420 Remove NodeDepth
llvm-svn: 29338
2006-07-27 06:40:15 +00:00
Nate Begeman 787565024a Support jump tables when in PIC relocation model
llvm-svn: 29318
2006-07-27 01:13:04 +00:00
Chris Lattner 9e56e5c003 Rename RelocModel::PIC to PIC_, to avoid conflicts with -DPIC.
llvm-svn: 29307
2006-07-26 21:12:04 +00:00
Evan Cheng f6acb34d23 - Refactor the code that resolve basic block references to a TargetJITInfo
method.
- Added synchronizeICache() to TargetJITInfo. It is called after each block
  of code is emitted to flush the icache. This ensures correct execution
  on targets that have separate dcache and icache.
- Added PPC / Mac OS X specific code to do icache flushing.

llvm-svn: 29276
2006-07-25 20:40:54 +00:00
Chris Lattner 4f8eb5ccaf bswapped load/store instructions are only availble in indexed addressing form.
As such, use xoaddr (indexed only), not xaddr for address selection.

This fixes CodeGen/PowerPC/2006-07-19-stwbrx-crash.ll, a crash compiling lencod.

llvm-svn: 29208
2006-07-19 17:15:36 +00:00
Chris Lattner b00b6c2e86 Make the implicit def instructions look like other instrs.
llvm-svn: 29174
2006-07-18 16:33:26 +00:00
Chris Lattner e1758d4cef Remove what little AIX support we have. It has never been tested and isn't
complete.

llvm-svn: 29156
2006-07-15 01:24:23 +00:00
Chris Lattner 96aecb5d76 Add missing PPC64 extload/truncstores
llvm-svn: 29140
2006-07-14 04:42:02 +00:00
Chris Lattner 950dffaed6 Add a note
llvm-svn: 29139
2006-07-14 04:07:29 +00:00
Chris Lattner 077b86a078 Another fix in the rotate encodings, needed when the first two operands are not
the same.

llvm-svn: 29136
2006-07-13 21:52:41 +00:00
Chris Lattner b42a945fd2 Print negative immediates as negative values instead of large constants
when using the immshifted addressing mode.

llvm-svn: 29130
2006-07-12 23:24:02 +00:00
Chris Lattner dd57ac4871 Fix encoding of rotates, such as rldicl
llvm-svn: 29128
2006-07-12 22:08:13 +00:00
Chris Lattner 5b17dee741 Implement PPC64 relocations types
llvm-svn: 29125
2006-07-12 21:23:20 +00:00
Chris Lattner 1ec5e73b32 An overaggressive #ifdef allows a function to fall off the bottom of the
function instead of returning a value.  This sometimes allowed the ppc32 jit
to be used in 64-bit mode.

llvm-svn: 29123
2006-07-12 20:42:10 +00:00
Chris Lattner 6e662083d9 The PPC64 JIT needs register numbers to encode instructions.
llvm-svn: 29114
2006-07-11 20:53:55 +00:00
Jim Laskey c3d341ea98 Ensure that dump calls that are associated with asserts are removed from
non-debug build.

llvm-svn: 29105
2006-07-11 17:58:07 +00:00
Chris Lattner 71227c23b1 In 64-bit mode, 64-bit GPRs are callee saved, not 32-bit ones.
llvm-svn: 29096
2006-07-11 00:48:23 +00:00
Chris Lattner a7976d329e Implement Regression/CodeGen/PowerPC/bswap-load-store.ll by folding bswaps
into i16/i32 load/stores.

llvm-svn: 29089
2006-07-10 20:56:58 +00:00
Chris Lattner 59b6e8a683 Undisable ppc64 jit
llvm-svn: 29011
2006-07-06 17:10:42 +00:00
Chris Lattner 996795b0dd Use hidden visibility to make symbols in an anonymous namespace get
dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975
2006-06-28 23:17:24 +00:00
Chris Lattner 2f8c2d8ef2 shrink libllvmgcc.dylib another 25K
llvm-svn: 28971
2006-06-28 22:00:36 +00:00
Chris Lattner ca9c488528 Don't match 64-bit bitfield inserts into rlwimi's. todo add rldimi. :)
llvm-svn: 28944
2006-06-27 21:08:52 +00:00
Chris Lattner f882c54505 Fix ppc64 jump tables
llvm-svn: 28941
2006-06-27 20:46:17 +00:00
Chris Lattner 82ab3e21b1 Print stubs for external globals right.
llvm-svn: 28936
2006-06-27 20:20:53 +00:00
Chris Lattner 8aed3cc46b Implement 64-bit select, bswap, etc.
llvm-svn: 28935
2006-06-27 20:14:52 +00:00
Chris Lattner a2af3f47ea Add a pattern for i64 sra. Print 8-byte units with a space between the .quad
and the data

llvm-svn: 28934
2006-06-27 20:07:26 +00:00
Chris Lattner db9a95b775 Fix rewriting frame offsets with ixaddr instructions, which implicitly shift
the offset two bits to the left.

llvm-svn: 28933
2006-06-27 18:55:49 +00:00
Chris Lattner a07410c95b PPC doesn't have bit converts to/from i64
llvm-svn: 28932
2006-06-27 18:40:08 +00:00
Chris Lattner 3b5873456e Add 64-bit MTCTR so that indirect calls work.
llvm-svn: 28931
2006-06-27 18:36:44 +00:00
Chris Lattner e27d51e0d8 Fix an incorrect store pattern. This fixes em3d.
llvm-svn: 28930
2006-06-27 18:22:50 +00:00
Chris Lattner d48ce27532 Implement 64-bit undef, sub, shl/shr, srem/urem
llvm-svn: 28929
2006-06-27 18:18:41 +00:00
Chris Lattner cb5a84f446 Use i32 for shift amounts instead of i64. This gets bisort working.
llvm-svn: 28927
2006-06-27 17:34:57 +00:00
Chris Lattner f7fd88356a Add zextload from i32 -> i64, with this, perimeter works.
llvm-svn: 28926
2006-06-27 17:30:08 +00:00
Chris Lattner 1df0839067 Print darwin stub stuff correctly in 64-bit mode. With this, treeadd works in
ppc64 mode!

llvm-svn: 28923
2006-06-27 01:02:25 +00:00
Chris Lattner 9a40cca40f Fix variable shadowing issue
llvm-svn: 28922
2006-06-27 00:10:13 +00:00
Chris Lattner 97b3da1519 Implement a bunch of 64-bit cleanliness work. With this, treeadd builds (but
doesn't work right).

llvm-svn: 28921
2006-06-27 00:04:13 +00:00
Chris Lattner 7ecbd301b1 Rearrange compares, add ADDI8, add sext from 32-to-64 bit register
llvm-svn: 28920
2006-06-26 23:53:10 +00:00
Chris Lattner ec78cade34 Improve PPC64 calling convention support
llvm-svn: 28919
2006-06-26 22:48:35 +00:00
Chris Lattner b6a65f4661 Remove two more definitions
llvm-svn: 28918
2006-06-26 22:47:37 +00:00
Chris Lattner 86e6046515 remove two unused instructions.
llvm-svn: 28917
2006-06-26 22:44:13 +00:00
Jim Laskey a7b2bd5997 Add and sort "sections" in debug lines. This always stepping through
code in sections other than ".text", including weak sections like ctors and
dtors.

llvm-svn: 28909
2006-06-23 12:51:53 +00:00
Chris Lattner dc38e6f322 Correct returns of 64-bit values, though they seemed to work before...
llvm-svn: 28892
2006-06-21 00:34:03 +00:00
Chris Lattner 1f1b096142 Make these predicates correct in 64-bit mode too.
llvm-svn: 28890
2006-06-20 23:21:20 +00:00
Chris Lattner 52a956da52 Rename OR4 -> OR. Move some PPC64-specific stuff to the 64-bit file
llvm-svn: 28889
2006-06-20 23:18:58 +00:00
Chris Lattner 5705d4d519 remove unused flag
llvm-svn: 28888
2006-06-20 23:15:07 +00:00
Chris Lattner 9d65f3507e add some logical ops
llvm-svn: 28887
2006-06-20 23:11:59 +00:00
Chris Lattner 7a856a6d88 remove some unused patterns
llvm-svn: 28886
2006-06-20 23:11:36 +00:00
Chris Lattner d881f8257b Add some more immediate patterns. This allows us to compile:
void test6() {
  Y = 0xABCD0123BCDE4567;
}

into:

_test6:
        lis r2, -21555
        lis r3, ha16(_Y)
        ori r2, r2, 291
        rldicr r2, r2, 32, 31
        oris r2, r2, 48350
        ori r2, r2, 17767
        std r2, lo16(_Y)(r3)
        blr

llvm-svn: 28885
2006-06-20 23:03:01 +00:00
Chris Lattner 9834ad2fc6 Instead of li/xoris use li/oris. Note that this doesn't work if bit 15 is
set, so disable the pattern in that case.

llvm-svn: 28884
2006-06-20 22:38:59 +00:00
Chris Lattner 7e742e46ac Add some 64-bit logical ops.
Split imm16Shifted into a sext/zext form for 64-bit support.
Add some patterns for immediate formation.  For example, we now compile this:

static unsigned long long Y;
void test3() {
  Y = 0xF0F00F00;
}

into:

_test3:
        li r2, 3840
        lis r3, ha16(_Y)
        xoris r2, r2, 61680
        std r2, lo16(_Y)(r3)
        blr

GCC produces:

_test3:
        li r0,0
        lis r2,ha16(_Y)
        ori r0,r0,61680
        sldi r0,r0,16
        ori r0,r0,3840
        std r0,lo16(_Y)(r2)
        blr

llvm-svn: 28883
2006-06-20 22:34:10 +00:00
Chris Lattner d6e160d14d 64-bit bugfix: 0xFFFF0000 cannot be formed with a single lis.
llvm-svn: 28880
2006-06-20 21:39:30 +00:00
Chris Lattner 2d4e8f7e86 Add some patterns for globals, so we can now compile this:
static unsigned long long X, Y;
void test1() {
  X = Y;
}

into:

_test1:
        lis r2, ha16(_Y)
        lis r3, ha16(_X)
        ld r2, lo16(_Y)(r2)
        std r2, lo16(_X)(r3)
        blr

llvm-svn: 28879
2006-06-20 21:23:06 +00:00
Chris Lattner 868a75bec6 Remove some now-unneeded casts from instruction patterns. With the casts
removed, tblgen produces identical output to with them in.

llvm-svn: 28867
2006-06-20 00:39:56 +00:00
Chris Lattner 94d18df658 Add some patterns for ppc64
llvm-svn: 28866
2006-06-20 00:38:36 +00:00
Chris Lattner 49cadab385 Implement the getPointerRegClass method, which is required for the ptr_rc
magic to work.

llvm-svn: 28847
2006-06-17 00:01:04 +00:00
Chris Lattner 638ee4ee15 Upgrade some load/store instructions to use the proper addressing mode stuff.
llvm-svn: 28841
2006-06-16 21:29:41 +00:00
Chris Lattner e8fe5e2bf4 In 64-bit mode, addr mode operands use G8RC instead of GPRC.
llvm-svn: 28840
2006-06-16 21:29:03 +00:00
Chris Lattner a5190ae7a9 fix some assumptions that pointers can only be 32-bits. With this, we can
now compile:

static unsigned long X;
void test1() {
  X = 0;
}

into:

_test1:
        lis r2, ha16(_X)
        li r3, 0
        stw r3, lo16(_X)(r2)
        blr

Totally amazing :)

llvm-svn: 28839
2006-06-16 21:01:35 +00:00
Chris Lattner b429983988 Split 64-bit instructions out into a separate .td file
llvm-svn: 28838
2006-06-16 20:22:01 +00:00
Chris Lattner 61d703183e Force 64-bit register availability in 64-bit mode. For real.
llvm-svn: 28837
2006-06-16 20:05:06 +00:00
Chris Lattner a7d9db2fa5 Remove the -darwin and -aix llc options, inferring darwinism and aixism from
the target triple & subtarget info.  woo.

llvm-svn: 28835
2006-06-16 18:50:48 +00:00
Chris Lattner f3b5b92e58 Don't pass target name into TargetData anymore, it is never used or needed.
Remove explicit casts to std::string now that there is no overload resolution
issues in the TargetData ctors.

llvm-svn: 28830
2006-06-16 18:22:52 +00:00
Chris Lattner 16682fff2b Document the subtarget features better, make sure that 64-bit mode, 64-bit
support, and 64-bit register use are all consistent with each other.

Add a new "IsPPC" feature, to distinguish ppc32 vs ppc64 targets, use this
to configure TargetData differently.  This not makes ppc64 blow up on lots
of stuff :)

llvm-svn: 28825
2006-06-16 17:50:12 +00:00
Chris Lattner a35f306740 Rename some subtarget features. A CPU now can *have* 64-bit instructions,
can in 32-bit mode we can choose to optionally *use* 64-bit registers.

llvm-svn: 28824
2006-06-16 17:34:12 +00:00
Chris Lattner 0c4aa14deb First baby step towards ppc64 support. This adds a new -march=ppc64 backend
that is currently just like ppc32 :)

llvm-svn: 28813
2006-06-16 01:37:27 +00:00
Jim Laskey 19f964e048 1. Support standard dwarf format (was bootstrapping in Apple format.)
2. Add vector support.

llvm-svn: 28807
2006-06-15 20:51:43 +00:00
Evan Cheng 94bb93f8f7 Type of extract_element index operand should be iPTR.
llvm-svn: 28797
2006-06-15 08:18:06 +00:00
Jim Laskey f67bec0579 Place dwarf headers at earliest possible point. Well behaved when skipping
functions.

llvm-svn: 28781
2006-06-14 11:35:03 +00:00
Chris Lattner ac59ab515a Gaar! Don't use r11 for CR save/restore, use R0. R11 can be register
allocated, thus live across the save/reload.  This fixes

llc-beta /MultiSource/Applications/spiff/spiff
llc-beta /MultiSource/Benchmarks/sim/sim:
llc-beta /MultiSource/Benchmarks/Ptrdist/bc/bc
llc-beta /MultiSource/Benchmarks/McCat/12-IOtest/iotest:
llc-beta /MultiSource/Benchmarks/FreeBench/fourinarow/fourinarow
llc-beta /MultiSource/Benchmarks/Fhourstones-3.1/fhourstones3.1
llc-beta /MultiSource/Benchmarks/mediabench/adpcm/rawdaudio/rawdaudio
llc-beta /MultiSource/Benchmarks/mediabench/adpcm/rawcaudio/rawcaudio
llc-beta /MultiSource/Benchmarks/mediabench/g721/g721encode/encode
llc-beta /MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg

and probably others, with -regalloc=local.

llvm-svn: 28761
2006-06-12 23:59:16 +00:00
Chris Lattner 6b043a24a1 Fix spilling and reloading of CR regs to reload the right values. This fixes
Olden/power (and probably others) with -regalloc=local.

llvm-svn: 28760
2006-06-12 21:50:57 +00:00
Chris Lattner b055c8737f Work around a nasty tblgen bug where it doesn't add operands for varargs
nodes correctly.

llvm-svn: 28745
2006-06-10 01:15:02 +00:00
Chris Lattner 006b2c6ab9 Fix a problem exposed by the local allocator. CALL instructions are not marked
as using incoming argument registers, so the local allocator would clobber them
between their set and use.  To fix this, we give the call instructions a variable
number of uses in the CALL MachineInstr itself, so live variables understands
the live ranges of these register arguments.

llvm-svn: 28744
2006-06-10 01:14:28 +00:00
Chris Lattner c8587d4b81 Add PowerPC intrinsics to support dcbz[l]
llvm-svn: 28696
2006-06-06 21:29:23 +00:00
Chris Lattner 4442a70b3a Silence -pedantic warning
llvm-svn: 28633
2006-06-01 17:17:06 +00:00
Chris Lattner b9342afa56 Always reserve space for 8 spilled GPRs. GCC apparently assumes that this
space will be available, even if the callee isn't varargs.

llvm-svn: 28571
2006-05-30 21:21:04 +00:00
Evan Cheng a3add0fea8 Change RET node to include signness information of the return values. i.e.
RET chain, value1, sign1, value2, sign2, ...

llvm-svn: 28510
2006-05-26 23:10:12 +00:00
Chris Lattner 1fbb0d38c7 Fix build failure of povray
llvm-svn: 28473
2006-05-25 18:06:16 +00:00
Chris Lattner 630bbcef8d Fix Benchmarks/MallocBench/cfrac
llvm-svn: 28471
2006-05-25 16:54:16 +00:00
Evan Cheng c2cd473d9b CALL node change (arg / sign pairs instead of just arguments).
llvm-svn: 28462
2006-05-25 00:57:32 +00:00
Evan Cheng 4af59dac0b Assert if InflightSet is not cleared after instruction selecting a BB.
llvm-svn: 28459
2006-05-25 00:24:28 +00:00
Evan Cheng 1a8e74d113 Clear HandleMap and ReplaceMap after instruction selection. Or it may cause
non-deterministic behavior.

llvm-svn: 28454
2006-05-24 20:46:25 +00:00
Chris Lattner aa2372562e Patches to make the LLVM sources more -pedantic clean. Patch provided
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
2006-05-24 17:04:05 +00:00
Chris Lattner 33165c246c Fix CodeGen/Generic/vector.ll:test_div with altivec.
llvm-svn: 28445
2006-05-24 00:15:25 +00:00
Chris Lattner b56d22c2f6 Handle SETO* like we handle SET*, restoring behavior after Evan's setcc
change.  This fixes PowerPC/fnegsel.ll.

llvm-svn: 28443
2006-05-24 00:06:44 +00:00
Owen Anderson 80b1b4d41e Make TargetData strings less redundant.
llvm-svn: 28423
2006-05-20 23:28:54 +00:00
Owen Anderson 88812b5c0a Make all of the TargetMachine subclasses use the new string TargetData methods.
This is part of the on-going work on PR 761.

llvm-svn: 28414
2006-05-20 00:24:56 +00:00
Evan Cheng 305c49579c getCalleeSaveRegs and getCalleeSaveRegClasses are no long TableGen'd.
llvm-svn: 28378
2006-05-18 00:12:58 +00:00
Evan Cheng dcec882286 Remove PointerType from class Target
llvm-svn: 28368
2006-05-17 21:20:27 +00:00
Chris Lattner 6353807fdc Add a note about a note
llvm-svn: 28355
2006-05-17 19:02:25 +00:00
Chris Lattner eb755fc1b3 Make PPC call lowering more aggressive, making the isel matching code simple
enough to be autogenerated.

llvm-svn: 28354
2006-05-17 19:00:46 +00:00
Chris Lattner b1e9e37c58 Switch PPC over to a call-selection model where the lowering code creates
the copyto/fromregs instead of making the PPCISD::CALL selection code create
them.  This vastly simplifies the selection code, and moves the ABI handling
parts into one place.

llvm-svn: 28346
2006-05-17 06:01:33 +00:00
Chris Lattner b7552a88d6 3 changes, 2 of which are cleanup one of which changes codegen:
1. Rearrange code a bit so that the special case doesn't require indenting lots
   of code.
2. Add comments describing PPC calling convention.
3. Only round up to 56-bytes of stack space for an outgoing call if the callee
   is varargs.  This saves a bit of stack space.

llvm-svn: 28342
2006-05-17 00:15:40 +00:00
Chris Lattner f058f5aef1 implement passing/returning vector regs to calls, at least non-varargs calls.
llvm-svn: 28341
2006-05-16 23:54:25 +00:00
Chris Lattner aa40ec1b32 Instead of implementing LowerCallTo directly, let the default impl produce an
ISD::CALL node, then custom lower that.  This means that we only have to handle
LEGAL call operands/results, not every possible type.  This allows us to
simplify the call code, shrinking it by about 1/3.

llvm-svn: 28339
2006-05-16 22:56:08 +00:00
Chris Lattner 26e2fcd8b1 Simplify the argument counting logic by only incrementing the index.
llvm-svn: 28335
2006-05-16 18:58:15 +00:00
Chris Lattner 76c47b50e7 Simplify the dead argument handling code.
llvm-svn: 28334
2006-05-16 18:54:32 +00:00
Chris Lattner 318f0d2122 Vector args passed in registers don't reserve stack space.
llvm-svn: 28333
2006-05-16 18:51:52 +00:00
Chris Lattner 4302e8fb67 Switch the PPC backend over to using FORMAL_ARGUMENTS for formal argument
handling.  This makes the lower argument code significantly simpler (we
only need to handle legal argument types).

Incidentally, this also implements support for vector argument registers,
so long as they are not on the stack.

llvm-svn: 28331
2006-05-16 18:18:50 +00:00
Chris Lattner d2ca9abf57 Fit in 80 cols
llvm-svn: 28311
2006-05-16 04:20:24 +00:00
Chris Lattner 04a9e38369 Remove some dead code, identified by coverity.
llvm-svn: 28303
2006-05-15 05:48:32 +00:00
Chris Lattner ae48a894b1 Remove dead var, fix bad override.
llvm-svn: 28264
2006-05-12 21:09:57 +00:00
Chris Lattner f76c42776d remove dead variable.
llvm-svn: 28248
2006-05-12 17:33:59 +00:00
Chris Lattner a296339c87 Fix PowerPC/2006-05-12-rlwimi-crash.ll
Nate, please verify that if InsertMask is 0, rlwimi shouldn't be used.
This fixes the crash and causes no PPC testsuite regressions.

llvm-svn: 28243
2006-05-12 16:29:37 +00:00
Owen Anderson 8c2c1e90c4 Refactor a bunch of includes so that TargetMachine.h doesn't have to include
TargetData.h.  This should make recompiles a bit faster with my current
TargetData tinkering.

llvm-svn: 28238
2006-05-12 06:33:49 +00:00
Chris Lattner b25cb79604 Fix the PowerPC JIT-only failure on UnitTests/Vector/sumarray-dbl, which is
really a bad codegen bug that LLC happens to get lucky with. I must chat with
Nate for the proper fix.

llvm-svn: 28213
2006-05-10 06:38:32 +00:00
Chris Lattner 2814134a5d Indent .data/.text in the .s file
llvm-svn: 28204
2006-05-09 16:15:00 +00:00
Chris Lattner 8488ba2e41 Split SwitchSection into SwitchTo{Text|Data}Section methods.
llvm-svn: 28184
2006-05-09 04:59:56 +00:00
Nate Begeman ce6646c366 Yet more readme updating
llvm-svn: 28172
2006-05-08 20:54:02 +00:00
Nate Begeman 68a45419cc New note about something bad happening in target independent optimizers
llvm-svn: 28170
2006-05-08 20:08:28 +00:00
Nate Begeman 0eb8f2e496 Proving once again that I am not as smart as the compiler
llvm-svn: 28169
2006-05-08 19:09:24 +00:00
Nate Begeman 9b6d4c2968 Fold more shifts into inserts, and update the README
llvm-svn: 28168
2006-05-08 17:38:32 +00:00
Nate Begeman dc996b3f6c Update some stuff now that the new rlwimi code has gone in
llvm-svn: 28162
2006-05-08 02:52:38 +00:00
Nate Begeman 1333cead5b New rlwimi implementation, which is superior to the old one. There are
still a couple missed optimizations, but we now generate all the possible
rlwimis for multiple inserts into the same bitfield.  More regression tests
to come.

llvm-svn: 28156
2006-05-07 00:23:38 +00:00
Chris Lattner 8b9e11c110 Print a grouping around inline asm blocks so that we can tell when we are
using them.

llvm-svn: 28134
2006-05-05 21:50:04 +00:00
Chris Lattner 304bbf3b1d New note, Nate, please check to see if I'm full of it :)
llvm-svn: 28118
2006-05-05 05:36:15 +00:00
Chris Lattner 10b71c0d08 Rename MO_VirtualRegister -> MO_Register. Clean up immediate handling.
llvm-svn: 28104
2006-05-04 18:05:43 +00:00
Chris Lattner 10d6341618 Move some methods out of MachineInstr into MachineOperand
llvm-svn: 28102
2006-05-04 17:52:23 +00:00
Chris Lattner fef7a2d0f5 There shalt be only one "immediate" operand type!
llvm-svn: 28099
2006-05-04 17:21:20 +00:00
Chris Lattner 13d5f3eb05 Revert Nate's CR patch from last night, which caused many regressions (e.g. fhourstones).
Loading and storing off R0 isn't what we wanted.  Also, taking some CR's out of
CRRC seems to cause failures as well.  Further investigation is required.

llvm-svn: 28097
2006-05-04 16:56:45 +00:00
Chris Lattner 940cc978ef Remove a bunch more SparcV9 specific stuff
llvm-svn: 28093
2006-05-04 01:15:02 +00:00
Chris Lattner 9f6639b64d Remove some more unused stuff from MachineInstr that was leftover from V9.
llvm-svn: 28091
2006-05-04 00:44:25 +00:00
Chris Lattner e3a9c70ba0 Change from using MachineRelocation ctors to using static methods
in MachineRelocation to create Relocations.

llvm-svn: 28088
2006-05-03 20:30:20 +00:00
Chris Lattner 1d8ee1fc80 Suck block address tracking out of targets into the JIT Emitter. This
simplifies the MachineCodeEmitter interface just a little bit and makes
BasicBlocks work like constant pools and jump tables.

llvm-svn: 28082
2006-05-03 17:10:41 +00:00
Owen Anderson 20a631fde7 Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.
This fixes PR 759.

llvm-svn: 28074
2006-05-03 01:29:57 +00:00
Chris Lattner d8b192ba3b Change the BasicBlockAddrs map to be a vector, indexed by MBB number.
llvm-svn: 28069
2006-05-03 00:32:55 +00:00
Chris Lattner b8065a9a3a Several related changes:
1. Change several methods in the MachineCodeEmitter class to be pure virtual.
2. Suck emitConstantPool/initJumpTableInfo into startFunction, removing them
   from the MachineCodeEmitter interface, and reducing the amount of target-
   specific code.
3. Change the JITEmitter so that it allocates constantpools and jump tables
   *right* next to the functions that they belong to, instead of in a separate
   pool of memory.  This makes all memory for a function be contiguous, and
   means the JITEmitter only tracks one block of memory now.

llvm-svn: 28065
2006-05-02 23:22:24 +00:00
Chris Lattner e1c96369e2 Fix a purely hypothetical problem (for now): emitWord emits in the host
byte format.  This doesn't work when using the code emitter in a cross target
environment.  Since the code emitter is only really used by the JIT, this
isn't a current problem, but if we ever start emitting .o files, it would be.

llvm-svn: 28060
2006-05-02 19:14:47 +00:00
Chris Lattner c9aa3715e8 Refactor the machine code emitter interface to pull the pointers for the current
code emission location into the base class, instead of being in the derived classes.

This change means that low-level methods like emitByte/emitWord now are no longer
virtual (yaay for speed), and we now have a framework to support growable code
segments.  This implements feature request #1 of PR469.

llvm-svn: 28059
2006-05-02 18:27:26 +00:00
Nate Begeman bbcbf48aab Since we don't handle callee-save CRs right yet, don't allocate them. Also
don't step on R11 in the middle of a function when saving and restoring CRs

llvm-svn: 28058
2006-05-02 17:37:31 +00:00
Nate Begeman 287dc5be0d Hooray, everyone now uses the same printBasicBlockLabel implementation
llvm-svn: 28056
2006-05-02 17:34:51 +00:00
Nate Begeman b9d4f8324d Extend printBasicBlockLabel a bit so that it can be used to print all
basic block labels, consolidating the code to do so in one place for each
target.

llvm-svn: 28050
2006-05-02 05:37:32 +00:00
Nate Begeman 01364fbba8 Update the PPC compilation callback code to not need weird abi-violating
prologs and epilogs, keep all the asm in one place, and remove use of
compiler builtin functions.

llvm-svn: 28049
2006-05-02 04:50:05 +00:00
Chris Lattner 84b49d51be Fix CodeGen/Generic/2006-04-28-Sign-extend-bool.ll
llvm-svn: 28017
2006-04-28 21:56:10 +00:00
Chris Lattner a4c2c4a276 Add a note
llvm-svn: 27999
2006-04-28 00:04:05 +00:00
Nate Begeman 318bb96f9e No functionality changes, but cleaner code with correct comments.
llvm-svn: 27966
2006-04-25 04:45:59 +00:00
Nate Begeman 4ca2ea5b43 JumpTable support! What this represents is working asm and jit support for
x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.

llvm-svn: 27947
2006-04-22 18:53:45 +00:00
Chris Lattner c8afdfec52 Teach the JIT how to relocate LI, this fixes the JIT on Prolangs-C/TimberWolfMC
llvm-svn: 27943
2006-04-22 06:17:56 +00:00
Nate Begeman 57a32f0bc1 Fix the comment
llvm-svn: 27938
2006-04-21 22:11:27 +00:00
Nate Begeman 516b393992 Change the PPC JIT to use a Static relocation model
llvm-svn: 27937
2006-04-21 22:04:15 +00:00
Chris Lattner 99d3da9d2c Fix the CodeGen/PowerPC/buildvec_canonicalize.ll regression last night.
llvm-svn: 27908
2006-04-20 19:01:30 +00:00
Chris Lattner 0cd0065c58 Make sure that the new instructions selected have the right type. This fixes
CodeGen/PowerPC/2006-04-19-vmaddfp-crash.ll

llvm-svn: 27868
2006-04-20 05:58:10 +00:00
Chris Lattner 05bbec5020 add a note
llvm-svn: 27832
2006-04-19 16:22:38 +00:00
Chris Lattner a922a516b0 add a note
llvm-svn: 27828
2006-04-19 05:55:06 +00:00
Chris Lattner 34c901b50e These are correctly encoded by the JIT. I checked :)
llvm-svn: 27810
2006-04-18 19:03:38 +00:00
Chris Lattner 197d762232 add a note
llvm-svn: 27809
2006-04-18 18:30:19 +00:00
Chris Lattner 518834c67e Fix a crash on:
void foo2(vector float *A, vector float *B) {
  vector float C = (vector float)vec_cmpeq(*A, *B);
  if (!vec_any_eq(*A, *B))
    *B = (vector float){0,0,0,0};
  *A = C;
}

llvm-svn: 27808
2006-04-18 18:28:22 +00:00
Chris Lattner 1e174c87c3 pretty print node name
llvm-svn: 27806
2006-04-18 18:05:58 +00:00
Chris Lattner 9754d142a4 Implement an important entry from README_ALTIVEC:
If an altivec predicate compare is used immediately by a branch, don't
use a (serializing) MFCR instruction to read the CR6 register, which requires
a compare to get it back to CR's.  Instead, just branch on CR6 directly. :)

For example, for:
void foo2(vector float *A, vector float *B) {
  if (!vec_any_eq(*A, *B))
    *B = (vector float){0,0,0,0};
}

We now generate:

_foo2:
        mfspr r2, 256
        oris r5, r2, 12288
        mtspr 256, r5
        lvx v2, 0, r4
        lvx v3, 0, r3
        vcmpeqfp. v2, v3, v2
        bne cr6, LBB1_2 ; UnifiedReturnBlock
LBB1_1: ; cond_true
        vxor v2, v2, v2
        stvx v2, 0, r4
        mtspr 256, r2
        blr
LBB1_2: ; UnifiedReturnBlock
        mtspr 256, r2
        blr

instead of:

_foo2:
        mfspr r2, 256
        oris r5, r2, 12288
        mtspr 256, r5
        lvx v2, 0, r4
        lvx v3, 0, r3
        vcmpeqfp. v2, v3, v2
        mfcr r3, 2
        rlwinm r3, r3, 27, 31, 31
        cmpwi cr0, r3, 0
        beq cr0, LBB1_2 ; UnifiedReturnBlock
LBB1_1: ; cond_true
        vxor v2, v2, v2
        stvx v2, 0, r4
        mtspr 256, r2
        blr
LBB1_2: ; UnifiedReturnBlock
        mtspr 256, r2
        blr

This implements CodeGen/PowerPC/vec_br_cmp.ll.

llvm-svn: 27804
2006-04-18 17:59:36 +00:00
Chris Lattner 68c16a201e move some stuff around, clean things up
llvm-svn: 27802
2006-04-18 17:52:36 +00:00
Chris Lattner 96d50487c9 Use vmladduhm to do v8i16 multiplies which is faster and simpler than doing
even/odd halves.  Thanks to Nate telling me what's what.

llvm-svn: 27793
2006-04-18 04:28:57 +00:00
Chris Lattner d6d82aa889 Implement v16i8 multiply with this code:
vmuloub v5, v3, v2
        vmuleub v2, v3, v2
        vperm v2, v2, v5, v4

This implements CodeGen/PowerPC/vec_mul.ll.  With this, v16i8 multiplies are
6.79x faster than before.

Overall, UnitTests/Vector/multiplies.c is now 2.45x faster with LLVM than with
GCC.

Remove the 'integer multiplies' todo from the README file.

llvm-svn: 27792
2006-04-18 03:57:35 +00:00
Chris Lattner 7e439874cb Lower v8i16 multiply into this code:
li r5, lo16(LCPI1_0)
        lis r6, ha16(LCPI1_0)
        lvx v4, r6, r5
        vmulouh v5, v3, v2
        vmuleuh v2, v3, v2
        vperm v2, v2, v5, v4

where v4 is:
LCPI1_0:                                        ;  <16 x ubyte>
        .byte   2
        .byte   3
        .byte   18
        .byte   19
        .byte   6
        .byte   7
        .byte   22
        .byte   23
        .byte   10
        .byte   11
        .byte   26
        .byte   27
        .byte   14
        .byte   15
        .byte   30
        .byte   31

This is 5.07x faster on the G5 (measured) than lowering to scalar code +
loads/stores.

llvm-svn: 27789
2006-04-18 03:43:48 +00:00
Chris Lattner a2cae1bb10 Custom lower v4i32 multiplies into a cute sequence, instead of having legalize
scalarize the sequence into 4 mullw's and a bunch of load/store traffic.

This speeds up v4i32 multiplies 4.1x (measured) on a G5.  This implements
PowerPC/vec_mul.ll

llvm-svn: 27788
2006-04-18 03:24:30 +00:00
Chris Lattner 63a5cdc423 remove done item
llvm-svn: 27778
2006-04-17 21:52:03 +00:00
Chris Lattner 6bd68ae81e Don't diddle VRSAVE if no registers need to be added/removed from it. This
allows us to codegen functions as:

_test_rol:
        vspltisw v2, -12
        vrlw v2, v2, v2
        blr

instead of:

_test_rol:
        mfvrsave r2, 256
        mr r3, r2
        mtvrsave r3
        vspltisw v2, -12
        vrlw v2, v2, v2
        mtvrsave r2
        blr

Testcase here: CodeGen/PowerPC/vec_vrsave.ll

llvm-svn: 27777
2006-04-17 21:48:13 +00:00
Chris Lattner 72d7c27069 Vectors that are known live-in and live-out are clearly already marked in
the vrsave register for the caller.  This allows us to codegen a function as:

_test_rol:
        mfspr r2, 256
        mr r3, r2
        mtspr 256, r3
        vspltisw v2, -12
        vrlw v2, v2, v2
        mtspr 256, r2
        blr

instead of:

_test_rol:
        mfspr r2, 256
        oris r3, r2, 40960
        mtspr 256, r3
        vspltisw v0, -12
        vrlw v2, v0, v0
        mtspr 256, r2
        blr

llvm-svn: 27772
2006-04-17 21:22:06 +00:00
Chris Lattner 14c4972b6d Prefer to allocate V2-V5 before V0,V1. This lets us generate code like this:
vspltisw v2, -12
        vrlw v2, v2, v2

instead of:

        vspltisw v0, -12
        vrlw v2, v0, v0

when a function is returning a value.

llvm-svn: 27771
2006-04-17 21:19:12 +00:00
Chris Lattner 6df094b4ab Move some knowledge about registers out of the code emitter into the register info.
llvm-svn: 27770
2006-04-17 21:07:20 +00:00
Chris Lattner 0f28d48da2 Use a small table instead of macros to do this conversion.
llvm-svn: 27769
2006-04-17 20:59:25 +00:00
Chris Lattner e54133cfba Make sure to check splats of every constant we can, handle splat(31) by
being a bit more clever, add support for odd splats from -31 to -17.

llvm-svn: 27764
2006-04-17 18:09:22 +00:00
Chris Lattner 264c908e3a Teach the ppc backend to use rol and vsldoi to generate splatted constants.
This implements vec_constants.ll:test_vsldoi and test_rol

llvm-svn: 27760
2006-04-17 17:55:10 +00:00
Chris Lattner 26fb8d9393 add a note
llvm-svn: 27758
2006-04-17 17:29:41 +00:00
Chris Lattner 1b3806ace5 Make some code more general, adding support for constant formation of several
new patterns.

llvm-svn: 27754
2006-04-17 06:58:41 +00:00
Chris Lattner f8dd76df5b Learn how to make odd splatted constants in range [17,29]. This implements
PowerPC/vec_constants.ll:test_29.

llvm-svn: 27752
2006-04-17 06:07:44 +00:00
Chris Lattner 2a099c04c1 Pull some code out into a helper function.
Effeciently codegen even splats in the range [-32,30].

This allows us to codegen <30,30,30,30> as:

        vspltisw v0, 15
        vadduwm v2, v0, v0

instead of as a cp load.

llvm-svn: 27750
2006-04-17 06:00:21 +00:00
Chris Lattner 071ad01ceb Implement a TODO: for any shuffle that can be viewed as a v4[if]32 shuffle,
if it can be implemented in 3 or fewer discrete altivec instructions, codegen
it as such.  This implements Regression/CodeGen/PowerPC/vec_perf_shuffle.ll

llvm-svn: 27748
2006-04-17 05:28:54 +00:00
Chris Lattner 85bfa3c2bc Regenerate with adjusted costs
llvm-svn: 27746
2006-04-17 05:26:20 +00:00
Chris Lattner aac2a200cd Regenerate with correct offset
llvm-svn: 27744
2006-04-17 05:08:46 +00:00
Chris Lattner 311b1a6e23 Increase the opcodes by one each to disambiguate COPY from VMRGHW.
llvm-svn: 27742
2006-04-17 00:47:48 +00:00
Chris Lattner 07a3d01a91 Check in a table, generated by llvm-PerfectShuffle, of optimal shuffles
of various 4-element vectors.

llvm-svn: 27739
2006-04-17 00:37:02 +00:00
Chris Lattner 06a21ba96b Implement a TODO: have the legalizer canonicalize a bunch of operations to
one type (v4i32) so that we don't have to write patterns for each type, and
so that more CSE opportunities are exposed.

llvm-svn: 27731
2006-04-16 01:37:57 +00:00
Chris Lattner fa5aa396c2 Make the BUILD_VECTOR lowering code much more aggressive w.r.t constant vectors.
Remove some done items from the todo list.

llvm-svn: 27729
2006-04-16 01:01:29 +00:00
Chris Lattner 24acbe46c0 Fix a crash when faced with a shuffle vector that has an undef in its mask.
llvm-svn: 27726
2006-04-15 23:48:05 +00:00
Chris Lattner 873202fabd Add patterns for matching vnots with bit converted inputs. Most of these will
go away when I start using evan's binop type canonicalizer

llvm-svn: 27725
2006-04-15 23:45:24 +00:00
Chris Lattner 559c8ba466 Allow undef in a shuffle mask
llvm-svn: 27714
2006-04-14 23:19:08 +00:00
Chris Lattner 4211ca9108 Move the rest of the PPCTargetLowering::LowerOperation cases out into
separate functions, for simplicity and code clarity.

llvm-svn: 27693
2006-04-14 06:01:58 +00:00
Chris Lattner 19e9055eb5 Pull the VECTOR_SHUFFLE and BUILD_VECTOR lowering code out into separate
functions, which makes the code much cleaner :)

llvm-svn: 27692
2006-04-14 05:19:18 +00:00
Chris Lattner 883fb053bd Force non-darwin targets to use a static relo model. This fixes PR734,
tested by CodeGen/Generic/vector.ll

llvm-svn: 27657
2006-04-13 17:10:48 +00:00
Chris Lattner 5879efe0c8 add a note, move an altivec todo to the altivec list.
llvm-svn: 27654
2006-04-13 16:48:00 +00:00
Reid Spencer 9857229aba Add the README files to the distribution.
llvm-svn: 27651
2006-04-13 06:39:24 +00:00
Chris Lattner 147e50e1c5 Add a new way to match vector constants, which make it easier to bang bits of
different types.

Codegen spltw(0x7FFFFFFF) and spltw(0x80000000) without a constant pool load,
implementing PowerPC/vec_constants.ll:test1.  This compiles:

typedef float vf __attribute__ ((vector_size (16)));
typedef int vi __attribute__ ((vector_size (16)));
void test(vi *P1, vi *P2, vf *P3) {
  *P1 &= (vi){0x80000000,0x80000000,0x80000000,0x80000000};
  *P2 &= (vi){0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF};
  *P3 = vec_abs((vector float)*P3);
}

to:

_test:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        vspltisw v0, -1
        vslw v0, v0, v0
        lvx v1, 0, r3
        vand v1, v1, v0
        stvx v1, 0, r3
        lvx v1, 0, r4
        vandc v1, v1, v0
        stvx v1, 0, r4
        lvx v1, 0, r5
        vandc v0, v1, v0
        stvx v0, 0, r5
        mtspr 256, r2
        blr

instead of (with two constant pool entries):

_test:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        li r6, lo16(LCPI1_0)
        lis r7, ha16(LCPI1_0)
        li r8, lo16(LCPI1_1)
        lis r9, ha16(LCPI1_1)
        lvx v0, r7, r6
        lvx v1, 0, r3
        vand v0, v1, v0
        stvx v0, 0, r3
        lvx v0, r9, r8
        lvx v1, 0, r4
        vand v1, v1, v0
        stvx v1, 0, r4
        lvx v1, 0, r5
        vand v0, v1, v0
        stvx v0, 0, r5
        mtspr 256, r2
        blr

GCC produces (with 2 cp entries):

_test:
        mfspr r0,256
        stw r0,-4(r1)
        oris r0,r0,0xc00c
        mtspr 256,r0
        lis r2,ha16(LC0)
        lis r9,ha16(LC1)
        la r2,lo16(LC0)(r2)
        lvx v0,0,r3
        lvx v1,0,r5
        la r9,lo16(LC1)(r9)
        lwz r12,-4(r1)
        lvx v12,0,r2
        lvx v13,0,r9
        vand v0,v0,v12
        stvx v0,0,r3
        vspltisw v0,-1
        vslw v12,v0,v0
        vandc v1,v1,v12
        stvx v1,0,r5
        lvx v0,0,r4
        vand v0,v0,v13
        stvx v0,0,r4
        mtspr 256,r12
        blr

llvm-svn: 27624
2006-04-12 19:07:14 +00:00
Chris Lattner 74cf9ff761 Rename get_VSPLI_elt -> get_VSPLTI_elt
Canonicalize BUILD_VECTOR's that match VSPLTI's into a single type for each
form, eliminating a bunch of Pat patterns in the .td file and allowing us to
CSE stuff more aggressively.  This implements
PowerPC/buildvec_canonicalize.ll:VSPLTI

llvm-svn: 27614
2006-04-12 17:37:20 +00:00
Chris Lattner e318a7574e Ensure that zero vectors are always v4i32, which forces them to CSE with
each other.  This implements CodeGen/PowerPC/vxor-canonicalize.ll

llvm-svn: 27609
2006-04-12 16:53:28 +00:00
Nate Begeman f19bcd5177 Fix SingleSource/UnitTests/Vector/sumarray-dbl
llvm-svn: 27594
2006-04-11 19:44:43 +00:00
Nate Begeman 1bb132099f Fix PR727, correctly handling large stack aligments on ppc
llvm-svn: 27593
2006-04-11 19:29:21 +00:00
Chris Lattner aaa04230bd we have a shuffle instr, add an example.
llvm-svn: 27592
2006-04-11 18:47:03 +00:00
Jim Laskey 02b3b72bfc Suppress debug label when not debug.
llvm-svn: 27588
2006-04-11 08:11:53 +00:00
Chris Lattner e4db08a2f1 Vector function results go into V2 according to GCC. The darwin ABI doc
doesn't say where they go :-/

llvm-svn: 27579
2006-04-11 01:38:39 +00:00
Chris Lattner 92533cfb4a Move some return-handling code from lowerarguments to the ISD::RET handling stuff.
No functionality change.

llvm-svn: 27577
2006-04-11 01:21:43 +00:00
Chris Lattner 3a68f3c3ca properly mark vector selects as expanded to select_cc
llvm-svn: 27544
2006-04-08 22:59:15 +00:00
Chris Lattner 0a3d1bbca4 Add VRRC select support
llvm-svn: 27543
2006-04-08 22:45:08 +00:00
Nate Begeman 3f9c17906f Disable switch lowering for targets based on the selection dag isel,
letting the code generator handle them directly.

llvm-svn: 27539
2006-04-08 19:46:55 +00:00
Chris Lattner d9e80f4516 Implement PowerPC/CodeGen/vec_splat.ll:spltish to use vsplish instead of a
constant pool load.

llvm-svn: 27538
2006-04-08 07:14:26 +00:00
Chris Lattner d71a1f946d Change the interface to the predicate that determines if vsplti* can be used.
No functionality changes.

llvm-svn: 27536
2006-04-08 06:46:53 +00:00
Jim Laskey c0d6518f27 Make sure that debug labels are defined within the same section and after the
entry point of a function.

llvm-svn: 27494
2006-04-07 20:44:42 +00:00
Jim Laskey 2d7298c362 Foundation for call frame information.
llvm-svn: 27491
2006-04-07 16:34:46 +00:00
Chris Lattner e61cfad815 Add an item
llvm-svn: 27470
2006-04-06 23:16:19 +00:00
Chris Lattner 466841ddc7 Make sure to return the result in the right type.
llvm-svn: 27469
2006-04-06 23:12:19 +00:00
Chris Lattner a4bbfaed5c Match vpku[hw]um(x,x).
Convert vsldoi(x,x) to work the same way other (x,x) cases work.

llvm-svn: 27467
2006-04-06 22:28:36 +00:00
Chris Lattner f38e033270 Add support for matching vmrg(x,x) patterns
llvm-svn: 27463
2006-04-06 22:02:42 +00:00
Chris Lattner d1dcb52093 Pattern match vmrg* instructions, which are now lowered by the CFE into shuffles.
llvm-svn: 27457
2006-04-06 21:11:54 +00:00
Chris Lattner a4c727f1cc remove two done items
llvm-svn: 27453
2006-04-06 19:19:38 +00:00
Chris Lattner 1d33819194 Support pattern matching vsldoi(x,y) and vsldoi(x,x), which allows the f.e. to
lower it and LLVM to have one fewer intrinsic.  This implements
CodeGen/PowerPC/vec_shuffle.ll

llvm-svn: 27450
2006-04-06 18:26:28 +00:00
Chris Lattner e8b83b4206 Compile the vpkuhum/vpkuwum intrinsics into vpkuhum/vpkuwum instead of into
vperm with a perm mask lvx'd from the constant pool.

llvm-svn: 27448
2006-04-06 17:23:16 +00:00
Chris Lattner c94d932447 Add all of the data stream intrinsics and instructions. woo
llvm-svn: 27442
2006-04-05 22:27:14 +00:00
Chris Lattner 39dc64c955 Fix a typo
llvm-svn: 27440
2006-04-05 20:15:25 +00:00
Chris Lattner 39cc717c65 Fix CodeGen/PowerPC/2006-04-05-splat-ish.ll
llvm-svn: 27439
2006-04-05 17:39:25 +00:00
Evan Cheng 2cf4232ced Fallthrough to expand if a VECTOR_SHUFFLE cannot be custom lowered.
llvm-svn: 27433
2006-04-05 06:09:26 +00:00
Chris Lattner 2f8e2b2895 add vsl
llvm-svn: 27425
2006-04-05 01:16:22 +00:00
Chris Lattner 575352ac20 add vmladduhm
llvm-svn: 27423
2006-04-05 00:49:48 +00:00
Chris Lattner 5a528e565b Add m[tf]vscr instructions.
llvm-svn: 27421
2006-04-05 00:03:57 +00:00
Chris Lattner 0c82447c66 add a note
llvm-svn: 27419
2006-04-04 23:45:11 +00:00
Chris Lattner 281bb5da1d Add missing byte merges.
llvm-svn: 27418
2006-04-04 23:43:56 +00:00
Chris Lattner fc50ae521c Add FP -> Int Conversions
llvm-svn: 27417
2006-04-04 23:25:02 +00:00
Chris Lattner 96338b6a21 add average intrinsics
llvm-svn: 27416
2006-04-04 23:14:00 +00:00
Chris Lattner 4464383a17 add a note
llvm-svn: 27414
2006-04-04 22:43:55 +00:00
Chris Lattner 4a744e5c9d Fix some broken logic that would cause us to codegen {2147483647,2147483647,2147483647,2147483647} as 'vspltisb v0, -1'.
llvm-svn: 27413
2006-04-04 22:28:35 +00:00
Chris Lattner 95c7adc7cb Ask legalize to promote all vector shuffles to be v16i8 instead of having to
handle all 4 PPC vector types.   This simplifies the matching code and allows
us to eliminate a bunch of patterns.  This also adds cases we were missing,
such as CodeGen/PowerPC/vec_splat.ll:splat_h.

llvm-svn: 27400
2006-04-04 17:25:31 +00:00
Chris Lattner b1e6d84544 Plug in the byte and short splats
llvm-svn: 27387
2006-04-04 00:05:13 +00:00
Chris Lattner 447a7968af Revert accidentally committed hunks.
llvm-svn: 27386
2006-04-03 23:58:04 +00:00
Chris Lattner 533aed9a35 Make sure to mark unsupported SCALAR_TO_VECTOR operations as expand.
llvm-svn: 27385
2006-04-03 23:55:43 +00:00