Commit Graph

158 Commits

Author SHA1 Message Date
Anton Korobeynikov 4b4622454c During bittest switch lowering emit shift in the test block, which should (theoretically)
allow us to generate more efficient code. We don't do this now though :)

llvm-svn: 63027
2009-01-26 19:26:01 +00:00
Duncan Sands be7e41481b Cleanup whitespace and comments, and tweak some
prototypes, in operand type legalization.  No
functionality change.

llvm-svn: 62680
2009-01-21 09:00:29 +00:00
Sanjiv Gupta a70798cc9a Allow targets to legalize operations (with illegal operands) that produces multiple values. For example, a load with an illegal operand (a load produces two values, a value and chain).
llvm-svn: 62663
2009-01-21 04:48:39 +00:00
Bill Wendling 2395916c87 Use "SINT_TO_FP" instead of "UINT_TO_FP" when getting the exponent. This was
causing the limited precision stuff to produce the wrong result for values in
the range [0, 1).

llvm-svn: 62615
2009-01-20 21:17:57 +00:00
Bill Wendling 786a683441 Shift types need to match.
llvm-svn: 62571
2009-01-20 06:10:42 +00:00
Devang Patel 44afc82ebe Verify debug info.
llvm-svn: 62545
2009-01-19 23:21:49 +00:00
Mikhail Glushenkov 6e8d814d36 Registry.h should not depend on CommandLine.h.
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.

llvm-svn: 62312
2009-01-16 07:02:28 +00:00
Mikhail Glushenkov b2f9a73029 Delete trailing whitespace.
llvm-svn: 62307
2009-01-16 06:53:46 +00:00
Devang Patel 76d190cf4a Validate dbg_* intrinsics before lowering them.
llvm-svn: 62286
2009-01-15 23:41:32 +00:00
Rafael Espindola 6de96a1b5d Add the private linkage.
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
Dan Gohman 91febd1330 More consts on TargetLowering references.
llvm-svn: 62262
2009-01-15 16:58:17 +00:00
Gabor Greif 08a4c281cb minor refactoring: use a more specific API
llvm-svn: 62256
2009-01-15 11:10:44 +00:00
Devang Patel 5c6e1e3b7d Use DebugInfo interface to lower dbg_* intrinsics.
llvm-svn: 62127
2009-01-13 00:35:13 +00:00
Duncan Sands dc020f9c3c Rename getABITypeSize to getTypePaddedSize, as
suggested by Chris.

llvm-svn: 62099
2009-01-12 20:38:59 +00:00
Dan Gohman c7847cdb8d Fix a bug in ComputeLinearIndex computation handling multi-level
aggregate types. Don't increment the current index after reaching
the end of a struct, as it will already be pointing at
one-past-the end. This fixes PR3288.

llvm-svn: 61828
2009-01-06 22:53:52 +00:00
Devang Patel 56a8bb670f squash warnings.
llvm-svn: 61707
2009-01-05 17:31:22 +00:00
Duncan Sands 8feb694e8f Fix PR3274: when promoting the condition of a BRCOND node,
promote from i1 all the way up to the canonical SetCC type.
In order to discover an appropriate type to use, pass
MVT::Other to getSetCCResultType.  In order to be able to
do this, change getSetCCResultType to take a type as an
argument, not a value (this is also more logical).

llvm-svn: 61542
2009-01-01 15:52:00 +00:00
Anton Korobeynikov f4a66e8dda Restore debug printing
llvm-svn: 61398
2008-12-23 22:26:18 +00:00
Anton Korobeynikov d305d00796 Sometimes APInt syntax is really ugly... :(
llvm-svn: 61397
2008-12-23 22:26:01 +00:00
Anton Korobeynikov 05149bad18 Indent stuff properly
llvm-svn: 61396
2008-12-23 22:25:45 +00:00
Anton Korobeynikov 6f219132a7 Initial checkin of APInt'ififcation of switch lowering
llvm-svn: 61395
2008-12-23 22:25:27 +00:00
Dan Gohman 12f2490489 Clean up the atomic opcodes in SelectionDAG.
This removes all the _8, _16, _32, and _64 opcodes and replaces each
group with an unsuffixed opcode. The MemoryVT field of the AtomicSDNode
is now used to carry the size information. In tablegen, the size-specific
opcodes are replaced by size-independent opcodes that utilize the
ability to compose them with predicates.

This shrinks the per-opcode tables and makes the code that handles
atomics much more concise.

llvm-svn: 61389
2008-12-23 21:37:04 +00:00
Evan Cheng c35fc49477 We have decided not to support inline asm where an output operand with a matching input operand with incompatible type (i.e. either one is a floating point and the other is an integer or the sizes of the types differ). SelectionDAGBuild will catch these and exit with an error.
llvm-svn: 61092
2008-12-16 18:21:39 +00:00
Bill Wendling 4eb2dcdc45 Whitespace fixes.
llvm-svn: 60818
2008-12-10 00:28:22 +00:00
Bill Wendling db8ec2d75a Add sub/mul overflow intrinsics. This currently doesn't have a
target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!

llvm-svn: 60800
2008-12-09 22:08:41 +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
Bill Wendling 66835479d7 - Make lowering of "add with overflow" customizable by back-ends.
- Mark "add with overflow" as having a custom lowering for X86. Give it a null
  lowering representation for now.

llvm-svn: 59971
2008-11-24 19:21:46 +00:00
Mon P Wang 2967480f54 Added check to avoid generating extract subvector beyond the end of the vector when normalizing vector shuffles.
llvm-svn: 59900
2008-11-23 04:35:05 +00:00
Chris Lattner dd7083452f reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.

llvm-svn: 59823
2008-11-21 16:42:48 +00:00
Bill Wendling 4bce2bff88 Revert r59802. It was breaking the build of llvm-gcc:
g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -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/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -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/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

llvm-svn: 59809
2008-11-21 09:09:41 +00:00
Sanjiv Gupta 09a203765a Make mem[cpy,move,set] intrinsics overloaded.
llvm-svn: 59802
2008-11-21 07:49:09 +00:00
Mon P Wang c311360909 Clean up normalization of shuffles
llvm-svn: 59792
2008-11-21 04:25:21 +00:00
Bill Wendling 5eee74446d Combine the two add with overflow intrinsics lowerings. They differ only in DAG node type.
llvm-svn: 59788
2008-11-21 02:38:44 +00:00
Bill Wendling 87c175e629 Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet.
llvm-svn: 59786
2008-11-21 02:33:36 +00:00
Bill Wendling 8badb674eb Remove chains. Unnecessary.
llvm-svn: 59783
2008-11-21 02:22:59 +00:00
Bill Wendling 77538cc510 Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC"
because the boolean it returns to indicate an overflow may not be treated like
as a flag. It could be stored to memory, for instance.

llvm-svn: 59780
2008-11-21 02:12:42 +00:00
Bill Wendling 74296c60ff Implement the sadd_with_overflow intrinsic. This is converted into
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)

llvm-svn: 59779
2008-11-21 02:03:52 +00:00
Bill Wendling 165b45d385 80-column violation.
llvm-svn: 59718
2008-11-20 07:24:30 +00:00
Bill Wendling 13020d22da Rename stackprotector_create intrinsic to stackprotector.
llvm-svn: 59519
2008-11-18 11:01:33 +00:00
Bill Wendling 7235002bd1 Remove the stackprotector_check intrinsic. Use a volatile load instead.
llvm-svn: 59504
2008-11-18 07:30:57 +00:00
Mon P Wang 7a82474387 Improved shuffle normalization to avoid using extract/build when we
can extract using different indexes for two vectors. Added a few tests
for vector shuffles.

llvm-svn: 59399
2008-11-16 05:06:27 +00:00
Mon P Wang 58fb9135e2 Added CONVERT_RNDSAT (conversion with rounding and saturation) SDNode to
support targets that support these conversions. Users should avoid using
this node as the current targets don't generating code for it.

llvm-svn: 59001
2008-11-10 20:54:11 +00:00
Mon P Wang 25f0106fd9 Added support for the following definition of shufflevector
<result> = shufflevector <n x <ty>> <v1>, <n x <ty>> <v2>, <m x i32> <mask> 

llvm-svn: 58964
2008-11-10 04:46:22 +00:00
Bill Wendling eb4268d72f - Modify the stack protector algorithm so that the stack slot is allocated in
LLVM IR code and not in the selection DAG ISel. This is a cleaner solution.

- Fix the heuristic for determining if protectors are necessary. The previous
  one wasn't checking the proper type size.

llvm-svn: 58824
2008-11-07 01:23:58 +00:00
Bill Wendling b3f7a39877 - Rename stackprotector_{prologue,epilogue} to stackprotector_{create,check}.
- Get rid of "HasStackProtector" in MachineFrameInfo.
- Modify intrinsics to tell which are doing what with memory.

llvm-svn: 58799
2008-11-06 07:23:03 +00:00
Bill Wendling d970ea3eac Implement the stack protector stack accesses via intrinsics:
- stackprotector_prologue creates a stack object and stores the guard there.

- stackprotector_epilogue reads the stack guard from the stack position created
  by stackprotector_prologue.

- The PrologEpilogInserter was changed to make sure that the stack guard is
  first on the stack frame.

llvm-svn: 58791
2008-11-06 02:29:10 +00:00
Devang Patel 9e3e776e28 Emit label for llvm.dbg.func.start of the inlined function.
llvm-svn: 58786
2008-11-06 00:30:09 +00:00
Mon P Wang 769134be1e Added interface to allow clients to create a MemIntrinsicNode for
target intrinsics that touches memory

llvm-svn: 58548
2008-11-01 20:24:53 +00:00
Duncan Sands 17e678be87 Add sanity checking for BUILD_PAIR (I noticed the
other day that PPC custom lowering could create
a BUILD_PAIR of two f64 with a result type of...
f64! - already fixed).  Fix a place that triggers
the sanity check.

llvm-svn: 58378
2008-10-29 14:22:20 +00:00
Dan Gohman 8b44b88eff Fix SelectionDAGBuild lowering of Select instructions to
handle first-class aggregate values. Also, fix a bug in
the Ret handling for empty aggregates.

llvm-svn: 57925
2008-10-21 20:00:42 +00:00
Chris Lattner 4396e0d2c3 Fix gcc.c-torture/compile/920520-1.c by inserting bitconverts
for strange asm conditions earlier.  In this case, we have a
double being passed in an integer reg class.  Convert to like
sized integer register so that we allocate the right number 
for the class (two i32's for the f64 in this case).

llvm-svn: 57862
2008-10-21 00:45:36 +00:00
Bill Wendling 6c87bfc6fd Fix comment. Other formatting changes. No functionality changes.
llvm-svn: 57785
2008-10-19 20:34:04 +00:00
Chris Lattner 160e8abd77 Reapply r57699 with a fix to not crash on asms with multiple results. Unlike
the previous patch this one actually passes make check.

"Fix PR2356 on PowerPC: if we have an input and output that are tied together
that have different sizes (e.g. i32 and i64) make sure to reserve registers for
the bigger operand."

llvm-svn: 57771
2008-10-18 18:49:30 +00:00
Dan Gohman 6de2556205 Revert r57699. It's causing regressions in
test/CodeGen/X86/2008-09-17-inline-asm-1.ll
and a few others, and it breaks the llvm-gcc build.

llvm-svn: 57747
2008-10-18 01:03:45 +00:00
Dan Gohman d01ddb51ee Factor out the code for mapping LLVM IR condition opcodes to
ISD condition opcodes into helper functions.

llvm-svn: 57726
2008-10-17 21:16:08 +00:00
Chris Lattner aadf7414b2 add support for 128 bit aggregates.
llvm-svn: 57715
2008-10-17 19:59:51 +00:00
Dan Gohman 293abcc91d Factor out the code for mapping LLVM IR condition opcodes to
ISD condition opcodes into helper functions.

llvm-svn: 57710
2008-10-17 18:18:45 +00:00
Chris Lattner 052092bf9c Fix PR2356 on PowerPC: if we have an input and output that are tied together
that have different sizes (e.g. i32 and i64) make sure to reserve registers for
the bigger operand.

llvm-svn: 57699
2008-10-17 17:52:49 +00:00
Chris Lattner 3b1833c9b4 refactor some code into a helper method, no functionality change.
llvm-svn: 57690
2008-10-17 17:05:25 +00:00
Chris Lattner 860df6e84c Keep track of *which* input constraint matches an output
constraint.  Reject asms where an output has multiple
input constraints tied to it.

llvm-svn: 57687
2008-10-17 16:47:46 +00:00
Chris Lattner ef8901722e add an assert so that PR2356 explodes instead of running off an
array.  Improve some minor comments, refactor some helpers in
AsmOperandInfo.  No functionality change for valid code.

llvm-svn: 57686
2008-10-17 16:21:11 +00:00
Chris Lattner fb1f4a1329 simplify comparison
llvm-svn: 57371
2008-10-11 00:08:02 +00:00
Dan Gohman bef9b0bef0 Correctly handle calls with no return values. This fixes
2006-01-23-UnionInit on x86-64 when inlining is not enabled.

llvm-svn: 57223
2008-10-07 00:12:37 +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
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
Devang Patel 4c758ea3e0 Large mechanical patch.
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
2008-09-25 21:00:45 +00:00
Dale Johannesen c50ada2f56 Accept 'inreg' attribute on x86 functions as
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619
2008-09-25 20:47:45 +00:00
Dan Gohman 32a733e2c7 FastISel support for debug info.
llvm-svn: 56610
2008-09-25 17:05:24 +00:00
Evan Cheng 2e7450716a <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!")
llvm-svn: 56597
2008-09-25 00:14:04 +00:00
Dale Johannesen 86d421df23 Remove SelectionDag early allocation of registers
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.

llvm-svn: 56592
2008-09-24 23:13:09 +00:00
Dale Johannesen c36660d756 Next round of earlyclobber handling. Approach the
RA problem by expanding the live interval of an
earlyclobber def back one slot.  Remove
overlap-earlyclobber throughout.  Remove 
earlyclobber bits and their handling from
live internals.

llvm-svn: 56539
2008-09-24 01:07:17 +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
Bill Wendling 91ef8fcd29 Add helper function to get a 32-bit floating point constant. No functionality change.
llvm-svn: 56418
2008-09-22 00:44:35 +00:00
Dale Johannesen f8610ebebc Add a bit to mark operands of asm's that conflict
with an earlyclobber operand elsewhere.  Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way 
that conflicts with an earlyclobber.  See also comments.

llvm-svn: 56290
2008-09-17 21:13:11 +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 050d7835c6 Don't take the time to CheckDAGForTailCallsAndFixThem when tail calls
are not enabled. Instead just omit the tail call flag when calls are
created.

llvm-svn: 56235
2008-09-16 01:42:28 +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 ec270fb640 Change ConstantSDNode and ConstantFPSDNode to use ConstantInt* and
ConstantFP* instead of APInt and APFloat directly.

This reduces the amount of time to create ConstantSDNode
and ConstantFPSDNode nodes when ConstantInt* and ConstantFP*
respectively are already available, as is the case in
SelectionDAGBuild.cpp. Also, it reduces the amount of time
to legalize constants into constant pools, and the amount of
time to add ConstantFP operands to MachineInstrs, due to
eliminating ConstantInt::get and ConstantFP::get calls.

It increases the amount of work needed to create new constants
in cases where the client doesn't already have a ConstantInt*
or ConstantFP*, such as legalize expanding 64-bit integer constants
to 32-bit constants. And it adds a layer of indirection for the
accessor methods. But these appear to be outweight by the benefits
in most cases.

It will also make it easier to make ConstantSDNode and
ConstantFPNode more consistent with ConstantInt and ConstantFP.

llvm-svn: 56162
2008-09-12 18:08:03 +00:00
Dale Johannesen 1f3ab86804 Pass "earlyclobber" bit through to machine
representation; coalescer and RA need to know
about it.  No functional change.

llvm-svn: 56161
2008-09-12 17:49:03 +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
Dan Gohman 1dc9b0514f FastISel support for i1 PHI nodes.
llvm-svn: 56069
2008-09-10 21:01:31 +00:00
Bill Wendling 6987fec11c Remove unnecessary bit-wise AND from the limited precision work.
llvm-svn: 56049
2008-09-10 06:26:10 +00:00
Daniel Dunbar 999096065f Fix 80 col violation.
llvm-svn: 56048
2008-09-10 04:16:29 +00:00
Bill Wendling eb1db169bf Check that both operands are f32 before attempting to lower.
llvm-svn: 56036
2008-09-10 00:24:59 +00:00
Bill Wendling 648930b9ba Implement "visitPow". This is mainly used to see if we have a pow() call of this
form:

          powf(10.0f, x);

If this is the case, and also we want limited precision floating-point
calculations, then lower to do the limited-precision stuff.

llvm-svn: 56035
2008-09-10 00:20:20 +00:00
Bill Wendling ab6676a46a Adding 6-, 12-, and 18-bit limited-precision floating-point support for exp2
function.

llvm-svn: 56025
2008-09-09 22:39:21 +00:00
Bill Wendling 48217d89b4 Add support for 6-, 12-, and 18-bit limited precision calculations of exp for
floating-point numbers.

llvm-svn: 56023
2008-09-09 22:13:54 +00:00
Bill Wendling ed3bb7888d - Add support for 6-, 12-, and 18-bit limited precision floating-point "log"
values.
- Refactored some of the code.

llvm-svn: 56008
2008-09-09 20:39:27 +00:00
Bill Wendling faeb4b6755 Add limited precision floating-point conversions of log10 for 6- and 18-bit
precisions.

llvm-svn: 56000
2008-09-09 18:42:23 +00:00
Bill Wendling 484167851a Add support for floating-point calculations of log2 with limited precisions of 6
and 18.

llvm-svn: 55968
2008-09-09 00:28:24 +00:00
Anton Korobeynikov 45165ed1ac Reapply 55904: Unbreak and fix indentation
llvm-svn: 55958
2008-09-08 21:13:56 +00:00
Dale Johannesen 67f99f1454 Redo the 3 existing low-precision expansions to
use float constants.  An oversight by the numerics
people who supplied this.

llvm-svn: 55930
2008-09-08 18:00:26 +00:00
Bill Wendling 99b83712f3 Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin:
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-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/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-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/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../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}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8

llvm-svn: 55928
2008-09-08 17:59:12 +00:00
Daniel Dunbar ede2d7d745 Add VISIBILITY_HIDDEN on SDISelAsmOperandInfo
llvm-svn: 55922
2008-09-08 16:56:08 +00:00
Anton Korobeynikov 6a73698a85 Unbreak and fix indentation
llvm-svn: 55904
2008-09-08 14:23:34 +00:00
Dale Johannesen 36d532abd6 Next limited float precision expansion (log2 12 bits)
llvm-svn: 55866
2008-09-05 23:49:37 +00:00
Dale Johannesen d4dac0e9ea Add the next limited-precision expansion.
llvm-svn: 55856
2008-09-05 21:27:19 +00:00