Commit Graph

40642 Commits

Author SHA1 Message Date
Bob Wilson 97886d59d1 ARM "rrx" shift operands do not have an immediate. PR7790.
llvm-svn: 110292
2010-08-05 00:34:42 +00:00
Dan Gohman 109561845b The trouble with testing for "ModRef" and "NoModRef" is that
one is a suffix of the other, and FileCheck accepts superstrings.
Adjust the output to avoid this problem.

llvm-svn: 110280
2010-08-04 23:37:55 +00:00
Bill Wendling ca1cb13646 The lower invoke pass needs to have unreachable code elimination run after it
because it could create such things. This fixes a MingW buildbot test failure.

llvm-svn: 110279
2010-08-04 23:36:02 +00:00
Eric Christopher 2db8464282 Make x86-64 membarriers work without sse and clean up some of the
uses.

llvm-svn: 110274
2010-08-04 23:03:04 +00:00
Dan Gohman bd33dab633 The two-callsite form of AliasAnalysis::getModRefInfo is documented
to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

llvm-svn: 110270
2010-08-04 22:56:29 +00:00
Jim Grosbach 8aaadea8ef and back in. false alarm on the tests from another unrelated local change.
llvm-svn: 110269
2010-08-04 22:46:09 +00:00
Eli Friedman 39d0f57cab PR7814: Truncates cannot be ignored for signed comparisons.
llvm-svn: 110268
2010-08-04 22:40:58 +00:00
Devang Patel a52ddc496a Implement target specific getDebugValueLocation().
llvm-svn: 110267
2010-08-04 22:39:39 +00:00
Jakob Stoklund Olesen 7fd4905f08 Coalesce stack slot accesses that arise when spilling both sides of a COPY.
This helps avoid silly code:

    %R0<def = LOAD <fi#5>
    STORE <fi#5>, %R0<kill>

llvm-svn: 110266
2010-08-04 22:35:11 +00:00
Jim Grosbach 8732d966e1 oops. revert for a moment to clean up tests first.
llvm-svn: 110259
2010-08-04 22:12:43 +00:00
Jim Grosbach 22be317fe4 Reserve a stack slot if the function adjusts the stack but doesn't
simplify the call frame pseudo instructions. In that situation, the
calculations for estimating the stack size will be way off, leading to
not having an emergency spill slot when we need one. It should be possible
to be more precise about tracking the adjustment values, but not really
necessary for correctness. Upcoming cleanups for PEI in general will
render that moot.

llvm-svn: 110258
2010-08-04 22:10:15 +00:00
Jakob Stoklund Olesen dc96e28d70 Checkpoint SplitKit progress.
We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

llvm-svn: 110257
2010-08-04 22:08:39 +00:00
Devang Patel 6e9a979414 Implement target specific getDebugValueLocation().
llvm-svn: 110256
2010-08-04 22:07:50 +00:00
Devang Patel 6c378ac473 Use location entry only of the location described by DBG_VALUE is valid.
llvm-svn: 110255
2010-08-04 22:07:27 +00:00
Bill Wendling b87f3e5a7d The EH prepare passes really want to be the last passes run before code-gen.
llvm-svn: 110248
2010-08-04 21:44:13 +00:00
Torok Edwin 31e90d2dd1 Use indirect calls in PowerPC JIT.
See PR5201. There is no way to know if direct calls will be within the allowed
range for BL. Hence emit all calls as indirect when in JIT mode.
Without this long-running applications will fail to JIT on PowerPC with a
relocation failure.

llvm-svn: 110246
2010-08-04 20:47:44 +00:00
Devang Patel 6d21f61b3f Fix typo in comment.
llvm-svn: 110244
2010-08-04 20:32:36 +00:00
Dan Gohman db764c6e3b Fix a minor bug which resulted in intermediate calculations
using wider types than are necessary.

llvm-svn: 110241
2010-08-04 19:52:50 +00:00
Dan Gohman 2392287306 Change this llvm_unreachable to report_fatal_error, since it can
be triggered by valid, if dubious, IR.

llvm-svn: 110240
2010-08-04 18:51:09 +00:00
Devang Patel d71bc1ae4e While spilling live registers at the end of block check whether they are used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack.
llvm-svn: 110235
2010-08-04 18:42:02 +00:00
Devang Patel 0e60e67efb If a variable is spilled by code generator then use DW_OP_fbreg to describe its location on stack.
llvm-svn: 110234
2010-08-04 18:40:52 +00:00
Owen Anderson 9f2bca02d7 Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
since unrolling is not enabled at -Os.

llvm-svn: 110233
2010-08-04 18:32:46 +00:00
Dale Johannesen 21f13209f8 Remove switch for disabling ARM tail calls. They
seem to be working correctly.  No functional change.

llvm-svn: 110226
2010-08-04 18:07:17 +00:00
Devang Patel 2bf0f3ceff Add DEBUG message.
llvm-svn: 110224
2010-08-04 18:06:05 +00:00
Dan Gohman ba81fc16a5 Fix whitespace.
llvm-svn: 110223
2010-08-04 17:43:57 +00:00
Benjamin Kramer a53a4eefa6 Enable COFF writer on mingw32 and cygwin.
llvm-svn: 110200
2010-08-04 15:32:40 +00:00
Kalle Raiskila 8b2f70125f Make SPU backend handle insertelement and
store for "half vectors"

llvm-svn: 110198
2010-08-04 13:59:48 +00:00
Benjamin Kramer 61c8e6dc16 Print an error message when someone tries -integrated-as on an unsupported target.
- The COFF backend doesn't support MingW/Cygwin at the moment, it'll report an
  error, but it's still much better than random assertions from the MachO backend.
- We want to make ELF the default eventually, it's what the majority of targets use.

llvm-svn: 110197
2010-08-04 13:16:30 +00:00
Torok Edwin bfc17d0157 Add a missing function.
llvm-svn: 110195
2010-08-04 11:42:45 +00:00
Gabor Greif 94ab490260 by Alexander Herz:
"The CWriter::GetValueName() method does not check if a value as an alias 
and emits the alias name which will never be defined in the output .c 
file (so the output file fails to compile). This can happen if you have 
multiple inheritance with several destructors defined by clang (...D0Ev, 
...D1Ev, ...D2Ev)."

-- applied with minor tweaks. Thanks!

llvm-svn: 110194
2010-08-04 10:00:52 +00:00
Dan Gohman 5cae103392 Eliminate unnecessary empty string literals.
llvm-svn: 110183
2010-08-04 01:39:08 +00:00
Dan Gohman 839c972102 Fix a comment.
llvm-svn: 110181
2010-08-04 01:16:35 +00:00
Dan Gohman 47053d972b Don't print the filename twice in file-not-found errors.
llvm-svn: 110179
2010-08-04 01:13:48 +00:00
Bob Wilson 79daf7e0ae Combine NEON VABD (absolute difference) intrinsics with ADDs to make VABA
(absolute difference with accumulate) intrinsics.  Radar 8228576.

llvm-svn: 110170
2010-08-04 00:12:08 +00:00
Dan Gohman fc419ef6a0 Remove PointerAccessInfo, which nothing was using.
llvm-svn: 110167
2010-08-03 23:08:10 +00:00
Chris Lattner 53befe7bc1 fix a win64 encoding problem, patch by Cameron Esfahani!
llvm-svn: 110164
2010-08-03 22:49:22 +00:00
Dan Gohman 5442c71f2e Thread const correctness through a bunch of AliasAnalysis interfaces and
eliminate several const_casts.

Make CallSite implicitly convertible to ImmutableCallSite.

Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.

llvm-svn: 110155
2010-08-03 21:48:53 +00:00
Nate Begeman b69b182191 Add support for getting & setting the FPSCR application register on ARM when VFP is enabled.
Add support for using the FPSCR in conjunction with the vcvtr instruction, for controlling fp to int rounding.
Add support for the FLT_ROUNDS_ node now that the FPSCR is exposed.

llvm-svn: 110152
2010-08-03 21:31:55 +00:00
Dan Gohman ad867b0aed The singular of "indices" is "index".
llvm-svn: 110135
2010-08-03 20:23:52 +00:00
Dan Gohman 852d6fc50c Delete an unused function.
llvm-svn: 110134
2010-08-03 20:20:56 +00:00
Dan Gohman 3619660529 Make instcombine set explicit alignments on load or store
instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.

llvm-svn: 110128
2010-08-03 18:20:32 +00:00
Oscar Fuentes 371b1b91bf CMake: Change somme target library names:
XCore->XCoreGen
PIC16->PIC16CodeGen

After updating your working copy, the first build will fail because it
is using the old library dependencies. Start the build again and it
will work fine.

llvm-svn: 110127
2010-08-03 17:40:31 +00:00
Dan Gohman 52f9d7d617 Make AliasAnalysis::getModRefInfo conservative in the face of volatility.
llvm-svn: 110120
2010-08-03 17:27:43 +00:00
Jakob Stoklund Olesen 0c18757c9d Oops. Don't normalize spill weights twice.
When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.

This change could affect register allocation. Hopefully for the better.

llvm-svn: 110119
2010-08-03 17:21:16 +00:00
Chris Lattner 79102d9725 avoid undefined behavior negating minint.
llvm-svn: 110117
2010-08-03 16:57:03 +00:00
Dan Gohman 081627ceb8 Fix a typo Devang noticed.
llvm-svn: 110115
2010-08-03 16:48:31 +00:00
Chris Lattner 3db3bb0032 avoid undef behavior on minint, fixing PR7783.
llvm-svn: 110114
2010-08-03 16:41:24 +00:00
Peter Collingbourne ddaaf40d24 Add an atomic lowering pass
llvm-svn: 110113
2010-08-03 16:19:16 +00:00
Dan Gohman 35e8a6209d Use unary + instead of a separate local variable for working
around std::min vs static const friction.

llvm-svn: 110112
2010-08-03 16:15:50 +00:00
Michael J. Spencer 54cfd42c33 MC: Fix symbol fragment offsets in COFF.
Patch by Cameron Esfahani!

llvm-svn: 110104
2010-08-03 05:02:46 +00:00
Michael J. Spencer d32764c8a0 Revert "MC: Fix symbol fragment offsets in COFF."
This reverts commit r110100

Wrong path caps.

llvm-svn: 110103
2010-08-03 04:53:28 +00:00
Michael J. Spencer a6cfbeb98c MC: Add time travel support to COFF.
llvm-svn: 110101
2010-08-03 04:43:33 +00:00
Michael J. Spencer cf3d8b4ec4 MC: Fix symbol fragment offsets in COFF.
Patch by Cameron Esfahani!

llvm-svn: 110100
2010-08-03 04:43:24 +00:00
Michael J. Spencer 2ce6994211 Fix CMake build
llvm-svn: 110097
2010-08-03 02:38:20 +00:00
Dan Gohman 2a190081f6 Introduce a symbolic constant for ~0u for use with AliasAnalysis.
llvm-svn: 110091
2010-08-03 01:03:11 +00:00
Dan Gohman da7182e116 Add a convenient form of AliasAnalysis::alias for the case where the sizes
are unknown.

llvm-svn: 110090
2010-08-03 00:56:30 +00:00
Dan Gohman 7cac95778f Make SCEVUnknown a CallbackVH, so that it can be notified directly
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.

This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.

llvm-svn: 110086
2010-08-02 23:49:30 +00:00
Dan Gohman 272980b3f6 Sketch up a preliminary Type-Based Alias Analysis implementation.
llvm-svn: 110077
2010-08-02 23:11:01 +00:00
Dan Gohman 9c6e188f56 Fix visitInvokeInst to call visitTerminatorInst, and remove
a redundant check from checkInstruction.

llvm-svn: 110076
2010-08-02 23:09:14 +00:00
Dan Gohman d0a1e3de3f Add Verifier logic for indirectbr.
llvm-svn: 110075
2010-08-02 23:08:33 +00:00
Dan Gohman d8968da2c5 Add a lint check for indirectbr with no successors.
llvm-svn: 110074
2010-08-02 23:06:43 +00:00
Devang Patel 33a2cdf3f9 Add explicit constructors. Patch by Renato Golin.
llvm-svn: 110072
2010-08-02 22:51:46 +00:00
Bill Wendling 44dc60ba13 Early exit and reduce indentation. No functionality change.
llvm-svn: 110069
2010-08-02 22:06:08 +00:00
Dan Gohman abfafadfc7 Fix namespace polution.
llvm-svn: 110056
2010-08-02 18:50:06 +00:00
Devang Patel d070128de5 Free DbgScope created for dead functions.
llvm-svn: 110045
2010-08-02 17:32:15 +00:00
Kalle Raiskila 77558b7d13 More SPU v2f32 stuff added: insertelement and shuffle.
llvm-svn: 110038
2010-08-02 11:22:10 +00:00
Kalle Raiskila 68b3886678 Add preliminary v2f32 support for SPU. Like with v2i32, we just
duplicate the instructions and operate on half vectors. 

Also reorder code in SPUInstrInfo.td for better coherency.

llvm-svn: 110037
2010-08-02 10:25:47 +00:00
Owen Anderson 8f306a779b Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
llvm-svn: 110036
2010-08-02 09:32:13 +00:00
Kalle Raiskila 622f8eb981 Add preliminary v2i32 support for SPU backend. As there are no
such registers in SPU, this support boils down to "emulating" 
them by duplicating instructions on the general purpose registers. 

This adds the most basic operations on v2i32: passing parameters,
addition, subtraction, multiplication and a few others.

llvm-svn: 110035
2010-08-02 08:54:39 +00:00
Oscar Fuentes 40b31ad3ee Prefix `next' iterator operation with `llvm::'.
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!

llvm-svn: 110029
2010-08-02 06:00:15 +00:00
Daniel Dunbar c1b09c8644 Fix a -Wreorder warning.
llvm-svn: 110022
2010-08-02 05:43:46 +00:00
Nick Lewycky f52bd9cc33 Work in progress.
Start cleaning up MergeFunctions to look more like the rest of LLVM. The
primary change here is to move the methods responsible for comparison into the
new FunctionComparator object. Some comments added. There's more to do.

llvm-svn: 110021
2010-08-02 05:23:03 +00:00
Eli Friedman 460ad41d6d PR7586: Make sure we don't claim that unknown bits are actually known in the
ISD::AND case of TargetLowering::SimplifyDemandedBits.

llvm-svn: 110019
2010-08-02 04:42:25 +00:00
Eli Friedman 7595ce05a2 PR7781: Fix incorrect shifting in PPCTargetLowering::LowerBUILD_VECTOR.
llvm-svn: 109998
2010-08-02 00:18:19 +00:00
Eli Friedman 1b2bc1b844 PR7774: Fix undefined shifts in Alpha backend. As a bonus, this actually
improves the generated code in some cases.

llvm-svn: 109985
2010-08-01 21:13:28 +00:00
Benjamin Kramer 3d4af4e91e Preallocate vector, avoid unnecessary vector growth.
llvm-svn: 109971
2010-08-01 11:43:26 +00:00
Bill Wendling d9900542a6 Reference the personalities. Don't copy them into a new vector.
llvm-svn: 109966
2010-08-01 01:34:21 +00:00
Daniel Dunbar 727be43a3d Silence some -Asserts uninitialized variable warnings.
llvm-svn: 109956
2010-07-31 21:08:54 +00:00
Daniel Dunbar 0b636a24c7 Speculatively revert r108614, "Another attempt at getting the clang self-host to
like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
 - Also PR7719.

llvm-svn: 109953
2010-07-31 19:51:11 +00:00
Michael J. Spencer ed80f361b3 MC: Remove HasAbsolutizedSet from WindowsX86AsmBackend.
llvm-svn: 109949
2010-07-31 07:21:44 +00:00
Bob Wilson b128824b60 Move newlines before inline jumptables from the asm strings in .td files to
the jtblock_operand print methods.  This avoids extra newlines in the
disassembler's output.  PR7757.

llvm-svn: 109948
2010-07-31 06:28:10 +00:00
Michael J. Spencer 6b4925e223 Add relax all support to the COFF object streamer.
llvm-svn: 109947
2010-07-31 06:22:29 +00:00
Bob Wilson cd5fc7bef1 Add support for disassembling VMVN (immediate) instructions. PR7747.
llvm-svn: 109946
2010-07-31 05:57:44 +00:00
Rafael Espindola 40f18838b7 The BlockExtractorPass() constructor was not reading the BlockFile and that was
exactly what bugpoint expected it to do.

There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.

This fixes bugpoint's block extraction.

Nick, please review.

llvm-svn: 109936
2010-07-31 00:32:17 +00:00
Owen Anderson c1561b8400 Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some
of my earlier data structure improvements until I can ensure that there are no iterator invalidation problems.

llvm-svn: 109935
2010-07-30 23:59:40 +00:00
Evan Cheng 59069ec784 Add -disable-shifter-op to disable isel of shifter ops. On Cortex-a9 the shifts cost extra instructions so it might be better to emit them separately to take advantage of dual-issues.
llvm-svn: 109934
2010-07-30 23:33:54 +00:00
Bob Wilson eb7b21f3eb Add a check in the ARM disassembler for NEON instructions that would
reference registers past the end of the NEON register file, and report them
as invalid instead of asserting when trying to print them.  PR7746.

llvm-svn: 109933
2010-07-30 23:27:59 +00:00
Dale Johannesen cf0287e56d PPC doesn't supported VLA with large alignment. This was
formerly rejected by the FE, so asserted in the BE; now the FE only
warns, so we treat it as a legitimate fatal error in PPC BE.
This means the test for the feature won't pass, so it's xfail'd.

llvm-svn: 109892
2010-07-30 21:09:48 +00:00
Dan Gohman d566d2c7b5 Move MaximumAlignment to be a member of the Value class.
llvm-svn: 109891
2010-07-30 21:07:05 +00:00
Owen Anderson e4a0ab69d2 Revert my last two patches to LVI, which recent changes have exposed a miscompilation in.
llvm-svn: 109889
2010-07-30 20:56:07 +00:00
Nick Lewycky 299c6dfcbf Add missing newline to debug statement.
llvm-svn: 109886
2010-07-30 20:27:01 +00:00
Bob Wilson 4320e2d1bb Add the __TEXT,__StaticInit section to the list of sections emitted at the
beginning on ARM Darwin assembly files so that it won't be placed after
debug sections.  Radar 8252813.

llvm-svn: 109879
2010-07-30 19:55:47 +00:00
Bruno Cardoso Lopes 349165b48f Support all 128-bit AVX vector intrinsics. Most part of them I already
declared during the addition of the assembler support, the additional
changes are:
- Add missing intrinsics
- Move all SSE conversion instructions in X86InstInfo64.td to the SSE.td file.
- Duplicate some patterns to AVX mode.
- Step into PCMPEST/PCMPIST custom inserter and add AVX versions.

llvm-svn: 109878
2010-07-30 19:54:33 +00:00
Bruno Cardoso Lopes 405405bbfe Fix typo!
llvm-svn: 109877
2010-07-30 19:41:24 +00:00
Daniel Dunbar 5dc31317dd MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani.
llvm-svn: 109875
2010-07-30 18:32:09 +00:00
Daniel Dunbar c90e82a7f1 Fix -Wmissing-field-initializers warnings.
llvm-svn: 109872
2010-07-30 17:49:04 +00:00
Eli Friedman ffe64c06ef Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.

llvm-svn: 109854
2010-07-30 06:44:31 +00:00
Jim Grosbach d343166a0b Many Thumb2 instructions can reference the full ARM register set (i.e.,
have 4 bits per register in the operand encoding), but have undefined
behavior when the operand value is 13 or 15 (SP and PC, respectively).
The trivial coalescer in linear scan sometimes will merge a copy from
SP into a subsequent instruction which uses the copy, and if that
instruction cannot legally reference SP, we get bad code such as:
  mls r0,r9,r0,sp
instead of:
  mov r2, sp
  mls r0, r9, r0, r2

This patch adds a new register class for use by Thumb2 that excludes
the problematic registers (SP and PC) and is used instead of GPR
for those operands which cannot legally reference PC or SP. The
trivial coalescer explicitly requires that the register class
of the destination for the COPY instruction contain the source
register for the COPY to be considered for coalescing. This prevents
errant instructions like that above.

PR7499

llvm-svn: 109842
2010-07-30 02:41:01 +00:00
Nate Begeman c4a96c0e8c Add builtins for ssat/usat, similar to RealView's __ssat and __usat intrinsics.
llvm-svn: 109813
2010-07-29 22:48:09 +00:00
Bob Wilson 728eb292eb Refactor ARM-specific DAG combining in preparation for adding some more
transformations.

llvm-svn: 109800
2010-07-29 20:34:14 +00:00
Dale Johannesen 2bff50546c Implement vector constants which are splat of
integers with mov + vdup.  8003375.  This is
currently disabled by default because LICM will
not hoist a VDUP, so it pessimizes the code if
the construct occurs inside a loop (8248029).

llvm-svn: 109799
2010-07-29 20:10:08 +00:00
Bob Wilson a9bf1b1493 Don't assert on an unrecognized BrMiscFrm instruction.
PR7745.

llvm-svn: 109788
2010-07-29 18:29:28 +00:00
Eli Friedman 0428a61e45 PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull
if CExpr is a ConstantInt.

llvm-svn: 109773
2010-07-29 18:03:33 +00:00
Nate Begeman 7010a71ac4 Add intrinsics __builtin_arm_qadd & __builtin_arm_qsub to allow access to the QADD & QSUB instructions.
Behave identically to __qadd & __qsub RealView instruction intrinsics.

llvm-svn: 109770
2010-07-29 17:56:55 +00:00
Benjamin Kramer a3e0ddb564 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter.
llvm-svn: 109767
2010-07-29 17:48:06 +00:00
Dale Johannesen 329d4741a5 Comment typo.
llvm-svn: 109765
2010-07-29 17:45:24 +00:00
Jakob Stoklund Olesen ba0e124aaf Revert r109652, and remove the offending assert in loadRegFromStackSlot instead.
We do sometimes load from a too small stack slot when dealing with x86 arguments
(varargs and smaller-than-32-bit args). It looks like we know what we are doing
in those cases, so I am going to remove the assert instead of artifically
enlarging stack slot sizes.

The assert in storeRegToStackSlot stays in. We don't want to write beyond the
bounds of a stack slot.

llvm-svn: 109764
2010-07-29 17:42:27 +00:00
Daniel Dunbar 4a338e3dc4 CrashRecovery: Use ThreadLocal::erase() instead of set(0).
llvm-svn: 109752
2010-07-29 15:24:21 +00:00
Benjamin Kramer bccfec653d Stop leaking std::strings in GetDwarfFile.
llvm-svn: 109746
2010-07-29 13:53:19 +00:00
Benjamin Kramer c2997dde85 COFFObjectWriter: Don't leak COFFSymbols and COFFSections.
llvm-svn: 109745
2010-07-29 11:57:59 +00:00
Daniel Dunbar 9789f81eb4 Make sure to include config.h, to pickup LLVM_ON_WIN32.
llvm-svn: 109721
2010-07-29 01:52:04 +00:00
Daniel Dunbar b759a13da8 MC: Destroy Macro instances.
llvm-svn: 109720
2010-07-29 01:51:55 +00:00
Eric Christopher ef6d5933a6 Speculatively revert r109705 since it seems to be causing some build bot
angst.

llvm-svn: 109718
2010-07-29 01:25:38 +00:00
Daniel Dunbar af77e22b36 CrashRecoveryContext: Add a simple POSIX implementation.
- This works, but won't handle crashes on stack overflow, or signals delivered
   to a thread other than the one that crashed. The latter is particular annoying
   on Darwin, because SIGABRT tends to go to the main thread.

llvm-svn: 109717
2010-07-29 01:21:47 +00:00
Jakob Stoklund Olesen 36cf119049 Fix a bug in the -regalloc=fast handling of exotic two-address instruction with
multiple defs, like t2LDRSB_POST.

The first def could accidentally steal the physreg that the second, tied def was
required to be allocated to.

Now, the tied use-def is treated more like an early clobber, and the physreg is
reserved before allocating the other defs.

This would never be a problem when the tied def was the only def which is the
usual case.

This fixes MallocBench/gs for thumb2 -O0.

llvm-svn: 109715
2010-07-29 00:52:19 +00:00
Dan Gohman 3d6ac44d96 Factor out some of the code for updating old SCEVUnknown values, and
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.

llvm-svn: 109705
2010-07-29 00:17:55 +00:00
Owen Anderson a44f49f189 Pass the queried value by argument rather than in a member, in preparation for supporting PHI translation.
llvm-svn: 109701
2010-07-28 23:50:08 +00:00
Jim Grosbach c445a7d29b ARM mode version of r109693. Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138
llvm-svn: 109696
2010-07-28 23:25:44 +00:00
Jim Grosbach 716a596cf7 Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138
llvm-svn: 109693
2010-07-28 23:17:45 +00:00
Jim Grosbach de0874a4bc Remove dead prototype
llvm-svn: 109691
2010-07-28 23:16:12 +00:00
Gabor Greif 62f0aac99d simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
llvm-svn: 109687
2010-07-28 22:50:26 +00:00
Owen Anderson cfc2a57fcd Add an erase() method to llvm::ThreadLocal.
llvm-svn: 109686
2010-07-28 22:49:43 +00:00
Owen Anderson 6982dd4e1f Get rid of LVIQuery as a distinct data structure, so that we don't have to initialize a new set of maps on every query.
llvm-svn: 109679
2010-07-28 22:07:25 +00:00
Dan Gohman 390914cbe8 Make GlobalValue alignment consistent with load, store, and alloca
alignment, fixing silent truncation of alignment values.

llvm-svn: 109653
2010-07-28 20:56:48 +00:00
Jakob Stoklund Olesen f2234fbe70 Create a fixed stack object for varargs that is as large as any register.
The size of this object isn't used for anything - technically it is of variable
size.

This avoids a false positive from the assert in
X86InstrInfo::loadRegFromStackSlot, and fixes PR7735.

llvm-svn: 109652
2010-07-28 20:55:38 +00:00
Kevin Enderby e5930f142a Added first bit of support for the dwarf .file directive. This patch collects
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
2010-07-28 20:55:35 +00:00
Daniel Dunbar 18e39cec7a RegionInfo: Make sure to free cached nodes; Tobias, please check!
llvm-svn: 109650
2010-07-28 20:28:50 +00:00
Daniel Dunbar e397dded7b MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh).
llvm-svn: 109649
2010-07-28 20:28:45 +00:00
Dan Gohman a7e5a24093 Define a maximum supported alignment value for load, store, and
alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.

llvm-svn: 109643
2010-07-28 20:12:04 +00:00
Jakob Stoklund Olesen 0ff2c110ad Print out the regclass of any virtual registers used by a machine instruction.
llvm-svn: 109608
2010-07-28 18:35:46 +00:00
Douglas Gregor b7b5a7dff0 Unbreak my CMake build, say you'll compile for me again...
llvm-svn: 109598
2010-07-28 17:17:46 +00:00
Dan Gohman 1da02dfbe3 Fix this code to avoid decrementing an iterator past the beginning
of a std::vector.

llvm-svn: 109597
2010-07-28 17:15:36 +00:00
Dan Gohman 9cd20bf792 When user code intentionally dereferences null, the alignment of the
dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.

llvm-svn: 109596
2010-07-28 17:14:23 +00:00
Dan Gohman 32f889e552 Do GEP offset calculations with unsigned math rather than signed math
to avoid undefined behavior on overflow, noticed by John Regehr.

llvm-svn: 109594
2010-07-28 17:11:36 +00:00
Gabor Greif f0084e1333 simplify
llvm-svn: 109589
2010-07-28 15:52:43 +00:00
Daniel Dunbar 19a3b37441 Support: Add CrashRecoveryContext helper object.
- Designed as a simple wrapper to allow clients to attempt to catch crashes
   (memory errors, assertion violations, etc.) and do some kind of recovery.

 - Currently doesn't actually attempt to catch crashes.

llvm-svn: 109586
2010-07-28 15:40:20 +00:00
Gabor Greif e497e5ef46 simplify
llvm-svn: 109585
2010-07-28 15:31:37 +00:00
Gabor Greif 0a970698da use Value* constructor of CallSite to create potentially improper site, and test that
llvm-svn: 109581
2010-07-28 14:28:18 +00:00
Gabor Greif 5bf74d648d use Value* constructor of CallSite to create potentially improper site, and test that
llvm-svn: 109580
2010-07-28 12:35:54 +00:00
Gabor Greif 67a970bff2 use Value* constructor of CallSite to create potentially improper site
llvm-svn: 109579
2010-07-28 12:19:46 +00:00
Gabor Greif 7cf6056484 simplify
llvm-svn: 109578
2010-07-28 10:57:28 +00:00
Gabor Greif 2e2503cd8d simplify
llvm-svn: 109577
2010-07-28 10:46:09 +00:00
Dan Gohman 7a066723d0 Make SCEVCallbackVH::allUsesReplacedWith update the old SCEVUnknown
object, as it may still be referenced by SCEVs not cleaned up by the
use list traversal.

Also, in ScalarEvolution::forgetValue, only check for a SCEVUnknown
object for the original value, not for any value in the use list,
because other SCEVUnknown values aren't necessary obsolete at that
point.

llvm-svn: 109570
2010-07-28 01:09:07 +00:00
Dan Gohman 8aeb0fb5ca Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete
the old value.

llvm-svn: 109567
2010-07-28 00:28:25 +00:00
Nate Begeman 53afc8f06a Implement a vectorized algorithm for <16 x i8> << <16 x i8>
This is about 4x faster and smaller than the existing scalarization.

llvm-svn: 109566
2010-07-28 00:21:48 +00:00
Owen Anderson aac5a72139 Rearrange several datastructures in LazyValueInfo to improve compile time.
This is still not perfect, but better than it was before.

llvm-svn: 109563
2010-07-27 23:58:11 +00:00
Gabor Greif 0630a71742 reintroduce original (asserting) semantics of CallSite(Instruction *II)
add instead a CallSite(Value* V) constructor that is consistent with ImmutableCallSize
and use that one in client code

llvm-svn: 109553
2010-07-27 22:53:28 +00:00
Nate Begeman 269a6da023 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.
For:

define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp {
entry:
  %shl = shl <4 x i32> %r, %a                     ; <<4 x i32>> [#uses=1]
  %tmp2 = bitcast <4 x i32> %shl to <2 x i64>     ; <<2 x i64>> [#uses=1]
  ret <2 x i64> %tmp2
}

We get:

_shl:                                   ## @shl
	pslld	$23, %xmm1
	paddd	LCPI0_0, %xmm1
	cvttps2dq	%xmm1, %xmm1
	pmulld	%xmm1, %xmm0
	ret

Instead of:

_shl:                                   ## @shl
	pshufd	$3, %xmm0, %xmm2
	movd	%xmm2, %eax
	pshufd	$3, %xmm1, %xmm2
	movd	%xmm2, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	pshufd	$1, %xmm0, %xmm3
	movd	%xmm3, %eax
	pshufd	$1, %xmm1, %xmm3
	movd	%xmm3, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm3
	punpckldq	%xmm2, %xmm3
	movd	%xmm0, %eax
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	movhlps	%xmm0, %xmm0
	movd	%xmm0, %eax
	movhlps	%xmm1, %xmm1
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm0
	punpckldq	%xmm0, %xmm2
	movdqa	%xmm2, %xmm0
	punpckldq	%xmm3, %xmm0
	ret

llvm-svn: 109549
2010-07-27 22:37:06 +00:00
Gabor Greif ef1ca24b91 recommit simplification (originally r109504, backed out in r109508) now that problem in CallSiteBase is fixed
llvm-svn: 109547
2010-07-27 22:02:00 +00:00
Devang Patel 84a74779a1 It is FE's responsibility to emit proper directory name.
llvm-svn: 109538
2010-07-27 20:51:15 +00:00
Jim Grosbach 7383cf06ba Grammar
llvm-svn: 109525
2010-07-27 18:36:27 +00:00
Nate Begeman 317b969ac5 Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.

llvm-svn: 109519
2010-07-27 18:02:18 +00:00
Jim Grosbach 2ff0e64bc3 80 column
llvm-svn: 109513
2010-07-27 17:38:47 +00:00
Jim Grosbach 7639967e6c fix typo
llvm-svn: 109511
2010-07-27 17:14:29 +00:00
Gabor Greif f159085414 recommit simplification (r109502, backed out r109509); seems to innocent
llvm-svn: 109510
2010-07-27 16:44:23 +00:00
Gabor Greif 5f91b7cf3e back out this too to restore the bots
llvm-svn: 109509
2010-07-27 15:56:07 +00:00
Gabor Greif ed1d92cb9a back out r109504, breaks the bots
llvm-svn: 109508
2010-07-27 15:18:11 +00:00
Gabor Greif 7b0a5fd2a5 simplify: CallSite::get --> CallSite constructor
llvm-svn: 109506
2010-07-27 15:02:37 +00:00
Gabor Greif 195a609c37 simplify
llvm-svn: 109504
2010-07-27 14:38:38 +00:00
Gabor Greif d59498bc97 use ImmutableCallSite for const-corrgoodness
llvm-svn: 109503
2010-07-27 14:15:29 +00:00
Gabor Greif 7527b2ed5c simplify
llvm-svn: 109502
2010-07-27 13:31:22 +00:00
Mikhail Glushenkov ee68696c5f Fix silent failure with no input files.
llvm-svn: 109500
2010-07-27 11:19:40 +00:00
Mikhail Glushenkov d359cf2e44 Return -1 only on failure to execute a program.
Also fix some comments.

llvm-svn: 109499
2010-07-27 11:19:36 +00:00
Tobias Grosser fc763867d5 RegionInfo: Add getMaxRegionExit()
getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

llvm-svn: 109496
2010-07-27 08:39:43 +00:00
Duncan Sands fd5c8329cf After updating value handles for RAUW, check that no weak or tracking handles
are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.

llvm-svn: 109495
2010-07-27 06:53:14 +00:00
Michael J. Spencer f8270bdb2d Make MC use Windows COFF on Windows and add tests.
llvm-svn: 109494
2010-07-27 06:46:15 +00:00
Tobias Grosser 1bec81a888 Add function to query RegionInfo about loops.
* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

llvm-svn: 109490
2010-07-27 04:17:13 +00:00
Jakob Stoklund Olesen 96a890a7f8 The isLoadFromStackSlot and isStoreToStackSlot have no way of reporting
subregister operands like this:

%reg1040:sub_32bit<def> = MOV32rm <fi#-2>, 1, %reg0, 0, %reg0, %reg1040<imp-def>; mem:LD4[FixedStack-2](align=8)

Make them return false when subreg operands are present. VirtRegRewriter is
making bad assumptions otherwise.

This fixes PR7713.

llvm-svn: 109489
2010-07-27 04:17:01 +00:00
Jakob Stoklund Olesen c3c05ed02e Add assertions that expose the PR7713 miscompilation: Accessing a stack slot
with a too-big register class.

llvm-svn: 109488
2010-07-27 04:16:58 +00:00
Bill Wendling 0ff1ef650b It's better to have the arrays, which would trigger the creation of stack
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
2010-07-27 01:55:19 +00:00
Jakob Stoklund Olesen c698417e52 Add SplitEditor to SplitKit. This class will be used to edit live intervals and
rewrite instructions for live range splitting.

Still work in progress.

llvm-svn: 109469
2010-07-26 23:44:11 +00:00
Dan Gohman c2af77f510 Fix a use-after-free.
llvm-svn: 109468
2010-07-26 23:40:24 +00:00
Bill Wendling fa60b0ee51 Using llvm.eh.catch.all.value instead of .llvm.eh.catch.all.value.
llvm-svn: 109462
2010-07-26 22:36:52 +00:00
Eli Friedman f902befe8e And a bit more non-ASCII stuff.
llvm-svn: 109458
2010-07-26 22:28:18 +00:00
Anton Korobeynikov 1e0d76bfd1 Drop some non-ascii stuff
llvm-svn: 109456
2010-07-26 22:23:07 +00:00
Bob Wilson f23a06c2e4 Don't call __register_frame from the JIT on systems that use setjmp/longjmp
exception handling.  Also fix an extra underscore typo in one instance of
"__ARM_EABI__".  Radar 8236264.

llvm-svn: 109451
2010-07-26 21:58:00 +00:00
Evan Cheng d4218b8793 On x86, f32 / f64 nodes share the same registers as 128-bit vector values.
llvm-svn: 109450
2010-07-26 21:50:05 +00:00
Evan Cheng e6d6c5dd11 The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling.
llvm-svn: 109449
2010-07-26 21:49:07 +00:00
Anton Korobeynikov b61a6f2742 Add a note
llvm-svn: 109448
2010-07-26 21:48:35 +00:00
Bruno Cardoso Lopes 36c2ea6c7a Temporary hack to let codegen assert or generate poor code in case
we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

llvm-svn: 109434
2010-07-26 21:01:18 +00:00
Owen Anderson aa7f66ba67 Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now.
llvm-svn: 109424
2010-07-26 18:48:03 +00:00
Anton Korobeynikov 6bcea068db Currently EH lowering code expects typeinfo to be global only.
This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

llvm-svn: 109423
2010-07-26 18:45:39 +00:00
Evan Cheng 23b05d1cf5 ARM fastisel isn't ready.
llvm-svn: 109421
2010-07-26 18:32:55 +00:00
Dan Gohman cd83870faf Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable
it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.

llvm-svn: 109419
2010-07-26 18:28:14 +00:00
Dan Gohman 2810bacafb Handle Values with no value in getCopyFromRegs.
llvm-svn: 109415
2010-07-26 18:15:41 +00:00
Dan Gohman 0141c13b22 Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.

Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.

This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.

llvm-svn: 109413
2010-07-26 18:11:16 +00:00
Dan Gohman a7908ae369 Preserve ScalarEvolution in the loop unroller.
llvm-svn: 109412
2010-07-26 18:02:06 +00:00
Dan Gohman accaca5604 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock:
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
2010-07-26 17:55:15 +00:00
Dan Gohman 30005444fe Avoid copying and recopying a std::set.
llvm-svn: 109405
2010-07-26 17:45:33 +00:00
Dan Gohman 2307c4bb76 Exit a search loop when the search goal is found.
llvm-svn: 109404
2010-07-26 17:41:45 +00:00
Dan Gohman 45af0ad182 Fix formatting.
llvm-svn: 109403
2010-07-26 17:39:33 +00:00
Dan Gohman f9da3c3b88 A block dominates itself, by definition.
llvm-svn: 109402
2010-07-26 17:38:15 +00:00
Dan Gohman 65b257c9d2 Use DominatorTree::properlyDominates instead of dominates with an
explicit inequality check.

llvm-svn: 109401
2010-07-26 17:37:36 +00:00
Dan Gohman 31f73ef210 A block dominates itself, by definition.
llvm-svn: 109400
2010-07-26 17:35:32 +00:00
Dan Gohman b3aa6c7110 Use DominatorTree::properlyDominates instead of dominates with an
explicit inequality check.

llvm-svn: 109398
2010-07-26 17:34:05 +00:00
Duncan Sands 136a6f0dbb Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter)
may be used uninitialized in the callers of HighRegPressure.

llvm-svn: 109393
2010-07-26 07:54:17 +00:00
Douglas Gregor 675b162512 Fix format-specifier warning
llvm-svn: 109391
2010-07-26 03:55:44 +00:00
Michael J. Spencer c21293792e MC: Fix whitespace error from last commit.
A Visual C++ extension that removes trailing new lines? Seriously?

llvm-svn: 109390
2010-07-26 03:01:28 +00:00
Michael J. Spencer b5fc138547 MC: Add WinCOFFObjectWriter implementation.
Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 109389
2010-07-26 02:17:32 +00:00
Lang Hames 2e3f20b9aa Factored out a bit of common code to mark VNInfos for deletion.
llvm-svn: 109388
2010-07-26 01:49:41 +00:00
Benjamin Kramer 5aaf677a37 Reduce string trashing.
llvm-svn: 109386
2010-07-25 23:18:32 +00:00
Evan Cheng 8ae3ecad2b Add comments.
llvm-svn: 109383
2010-07-25 18:59:43 +00:00
Douglas Gregor 8f452bc291 Remove extraneous semicolon
llvm-svn: 109373
2010-07-25 17:34:42 +00:00
Douglas Gregor 8fcfe7aa51 Unbreak CMake build
llvm-svn: 109372
2010-07-25 17:10:14 +00:00
Bob Wilson 280ce9984e Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts on
those.  Radar 8231572.

llvm-svn: 109367
2010-07-25 05:34:27 +00:00
Eli Friedman 6cf5141824 Revert r109361; it's impossible to write a call with an argument with an
invalid type.

llvm-svn: 109365
2010-07-24 23:06:59 +00:00
Eli Friedman 9d9e4a83b5 Minor simplification.
llvm-svn: 109362
2010-07-24 23:00:59 +00:00
Eli Friedman 261c211089 Make the ll parser check that arguments have valid types.
llvm-svn: 109361
2010-07-24 23:00:26 +00:00
Eli Friedman 5f6112450f PR7704: A function is not allowed to return a function; make sure to enforce
this consistently.

llvm-svn: 109360
2010-07-24 22:58:04 +00:00
Anton Korobeynikov 19edda0323 Hook in GlobalMerge pass
llvm-svn: 109359
2010-07-24 21:52:08 +00:00
Nick Lewycky 7bc0443f2b Revert this because we can't clone cyclic MDNodes which are creating during a
build of llvm-gcc.

llvm-svn: 109355
2010-07-24 20:54:02 +00:00
Anton Korobeynikov 3c8eb80d93 Add hook to insert late LLVM=>LLVM passes just before isel
llvm-svn: 109354
2010-07-24 20:48:54 +00:00
Nick Lewycky 14b69d59dd Whether function-local or not, a MDNode may reference a Function in which case
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353
2010-07-24 19:43:25 +00:00
Duncan Sands 3bc93c2f2f Clarify that if a new value handle is added while dropping value handles
hanging off a value, then the dropping code will intentionally not drop
it too (since this is almost certainly a bug).

llvm-svn: 109337
2010-07-24 12:09:22 +00:00
Bob Wilson 56c006561c Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K
won't cause a compile time performance regression.

llvm-svn: 109330
2010-07-24 06:01:53 +00:00
Devang Patel 498877d055 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line.
llvm-svn: 109302
2010-07-24 00:53:22 +00:00
Evan Cheng 37b740c4bf Add an ILP scheduler. This is a register pressure aware scheduler that's
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.

llvm-svn: 109300
2010-07-24 00:39:05 +00:00
Bruno Cardoso Lopes 306a1f9721 Support x86 "eiz" and "riz" pseudo index registers in the assembler.
llvm-svn: 109295
2010-07-24 00:06:39 +00:00
Jim Grosbach 0acbcb1a60 Use the appropriate register class for an i32 when adding ARM::LR to the
function live in set. This will give us tGPR for Thumb1 and GPR otherwise,
so the copy will be spillable. rdar://8224931

llvm-svn: 109293
2010-07-23 23:50:35 +00:00
Jim Grosbach ba4b1909ce Remove too-strict assertion. We may want the vreg copy of the physical register
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a low register. rdar://8224931

llvm-svn: 109291
2010-07-23 23:48:02 +00:00
Devang Patel 28499f76c9 Revert r109262.
llvm-svn: 109285
2010-07-23 23:04:41 +00:00
Dale Johannesen c17dd5790b Revert 109076. It is wrong and was causing regressions. Add some
comments explaining why it was wrong.  8225024.

Fix the real problem in 8213383: the code that splits very large
blocks when no other place to put constants can be found was not
considering the case that the block contained a Thumb tablejump.

llvm-svn: 109282
2010-07-23 22:50:23 +00:00
Evan Cheng df907f4594 - Allow target to specify when is register pressure "too high". In most cases,
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.

llvm-svn: 109279
2010-07-23 22:39:59 +00:00
Bruno Cardoso Lopes d65cd1d581 Remove trailing whitespace
llvm-svn: 109276
2010-07-23 22:15:26 +00:00
Dan Gohman 7038bd5c1a Eliminate getCanonicalInductionVariableIncrement's last user and
eliminate it.

llvm-svn: 109270
2010-07-23 21:34:51 +00:00
Dan Gohman acafc61023 Simplify this code; it can use the regular CFG utlities rather than
the BlockTraits abstractions.

llvm-svn: 109268
2010-07-23 21:25:16 +00:00
Dan Gohman 5ae3102459 Micro-optimize SCEVComplexityCompare.
llvm-svn: 109267
2010-07-23 21:20:52 +00:00
Dan Gohman 992db006d0 Add a const qualifier.
llvm-svn: 109266
2010-07-23 21:18:55 +00:00
Dan Gohman 55e244698a Use the proper type for shift counts. This fixes a bootstrap error.
llvm-svn: 109265
2010-07-23 21:08:12 +00:00
Devang Patel 3032354bbe IF directory name is empty then try to extract one using absolute file name.
llvm-svn: 109262
2010-07-23 20:36:13 +00:00
Bruno Cardoso Lopes ea0e05a3ce Add AVX version of CLMUL instructions
llvm-svn: 109248
2010-07-23 18:41:12 +00:00
Dan Gohman 0818684a70 DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits
are not demanded. This often allows the anyext to be folded away.

llvm-svn: 109242
2010-07-23 18:03:30 +00:00
Dan Gohman 2e00e3b12d Make SDNode::dump() print a newline at the end.
llvm-svn: 109234
2010-07-23 16:37:47 +00:00
Gabor Greif 4ad7271798 fix constness warnings
llvm-svn: 109224
2010-07-23 13:28:47 +00:00
Gabor Greif a1e9c98302 do not (implicitly) dereference iterator many times, cache it instead
llvm-svn: 109222
2010-07-23 10:23:01 +00:00
Mikhail Glushenkov dc0a05df55 Formatting.
llvm-svn: 109216
2010-07-23 04:19:34 +00:00
Mikhail Glushenkov 1e5d7c6e82 Get rid of exceptions in llvmc.
llvmc can be now compiled with llvm-gcc on Windows.

llvm-svn: 109215
2010-07-23 03:42:55 +00:00
Bruno Cardoso Lopes d618c8ac64 Declare CLMUL as a subtarget feature
llvm-svn: 109207
2010-07-23 01:22:45 +00:00
Bruno Cardoso Lopes 09dc24beac Add x86 CLMUL (Carry-less multiplication) cpu feature
llvm-svn: 109206
2010-07-23 01:17:51 +00:00
Eric Christopher faf5c76114 80-col.
llvm-svn: 109205
2010-07-23 01:05:59 +00:00
Bruno Cardoso Lopes acd9230b1b Add complete assembler support for FMA3 instructions, with descriptions and encodings taken from the AVX manual
llvm-svn: 109204
2010-07-23 00:54:35 +00:00
Dale Johannesen f2d75670b7 The only supported calling convention for X86-64 uses
SSE, so we can't return floating point values if this
is disabled.  Detect this error for clang.

With SSE1 only, f64 is a problem; it can be done, but
neither llvm-gcc nor clang has ever generated correct
code for it.  Since nobody noticed this I think it's
OK to treat it as an error for now.

This also handles SSE-sized vectors of floating point.
8207686, 8204109.

llvm-svn: 109201
2010-07-23 00:30:35 +00:00
Bruno Cardoso Lopes e29e389678 Fix some AVX instructions which didnt had HasAVX prefix. And also a problem with PINSRW, which was totally wrong because of a typo I introduced previously
llvm-svn: 109198
2010-07-23 00:14:54 +00:00
Chris Lattner 749ca32da1 eliminate the TargetInstrInfo::GetInstSizeInBytes hook.
ARM/PPC/MSP430-specific code (which are the only targets that
implement the hook) can directly reference their target-specific
instrinfo classes.

llvm-svn: 109171
2010-07-22 21:27:00 +00:00
Chris Lattner aba8ee38c2 remove the dwarf sizing stuff which is now dead, it was
"yet another" copy of the dwarf EH emission code that was
copied, pasted and slightly hacked up.

llvm-svn: 109169
2010-07-22 21:20:39 +00:00
Bruno Cardoso Lopes 0710c74f29 Add remaining AVX instructions (most of them dealing with GR64 destinations. This complete the assembler support for the general AVX ISA. But we still miss instructions from FMA3 and CLMUL specific feature flags, which are now the next step
llvm-svn: 109168
2010-07-22 21:18:49 +00:00
Chris Lattner 8f3adc9057 remove the JIT "NeedsExactSize" feature and supporting logic.
llvm-svn: 109167
2010-07-22 21:17:55 +00:00
Chris Lattner dab6888bb1 switch a private implementation of GetFunctionSizeInBytes.
This is probably not the best way to implement "Force LR to 
be spilled if the Thumb function size is > 2048." do this, 
it should use the branch shortening infrastructure, but I'm
just preserving functionality here.

llvm-svn: 109165
2010-07-22 21:14:33 +00:00
Chris Lattner b3f608bbba X86MCInstLower now depends on AsmPrinter being around.
llvm-svn: 109154
2010-07-22 21:10:04 +00:00
Chris Lattner 083be4d384 instead of migrating it to the MC instruction encoder, just
rip out the implementation of X86InstrInfo::GetInstSizeInBytes.
The code being ripped out just implemented a copy and hacked up
version of the (old) instruction encoder, and is buggy and 
terrible in other ways.  Since "GetInstSizeInBytes" is really 
only there to support the JIT's "NeedsExactSize" hook (which
noone is using), just rip out the code.  I will rip out the
NeedsExactSize hook next.

This resolves rdar://7617809 - switch X86InstrInfo::GetInstSizeInBytes to use X86MCCodeEmitter

llvm-svn: 109149
2010-07-22 21:05:13 +00:00
Devang Patel 5fa3813329 Speculatively revert 109117
llvm-svn: 109132
2010-07-22 18:44:00 +00:00
Xerxes Ranby ff66cd43c4 ARMv4 JIT forgets to set the lr register when making a indirect function call. Fixes PR7608
llvm-svn: 109125
2010-07-22 17:28:34 +00:00
Gabor Greif 59f9970ba5 keep in 80 cols
llvm-svn: 109122
2010-07-22 17:18:03 +00:00
Devang Patel fac440cfb6 Map MDNode correctly.
A non function local MDNode can have an operand which is cloned by MapValue(). 

llvm-svn: 109117
2010-07-22 16:35:00 +00:00
Gabor Greif 1a2da423c9 use cascading operator-> feature
llvm-svn: 109104
2010-07-22 13:49:27 +00:00
Gabor Greif dde79d8f1a mass elimination of reliance on automatic iterator dereferencing
llvm-svn: 109103
2010-07-22 13:36:47 +00:00
Gabor Greif 84012a93ef simplify
llvm-svn: 109101
2010-07-22 13:07:39 +00:00
Gabor Greif b8686360a1 do not access arguments via low-level interface, do not multiply dereference use_iterators
llvm-svn: 109100
2010-07-22 13:04:32 +00:00
Gabor Greif 10bb1f5462 pass dereferenced iterator to dyn_cast
llvm-svn: 109099
2010-07-22 11:48:35 +00:00
Gabor Greif 36f25dfd33 pass dereferenced iterator to dyn_cast
llvm-svn: 109098
2010-07-22 11:43:44 +00:00
Gabor Greif d9f48ecb2e use -> instead of (*).
llvm-svn: 109094
2010-07-22 11:12:32 +00:00
Gabor Greif 07c8ad54da cache dereferenced iterator
llvm-svn: 109093
2010-07-22 11:07:46 +00:00
Gabor Greif 3e44ea1917 undo 80 column trespassing I caused
llvm-svn: 109092
2010-07-22 10:37:47 +00:00
Chandler Carruth a1d7516cb7 Mark an assert-only variable as used.
llvm-svn: 109091
2010-07-22 08:02:25 +00:00
Chandler Carruth 2f8db38bb3 Fix the generated file name for CMake.
llvm-svn: 109090
2010-07-22 08:00:52 +00:00
Tobias Grosser 336734aca6 Add new RegionInfo pass.
The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

llvm-svn: 109089
2010-07-22 07:46:31 +00:00
Chandler Carruth 3180f9f55f Attempt to fix linking issues with CMake. Please review other CMake users,
especially on other platforms. Is there a better way to fix this.

llvm-svn: 109084
2010-07-22 06:27:45 +00:00
Evan Cheng bf32e54bac Re-apply r109079 with fix.
llvm-svn: 109083
2010-07-22 06:24:48 +00:00
Owen Anderson 6c55cccf87 Revert r109079, which broke a lot of CodeGen tests.
llvm-svn: 109082
2010-07-22 06:01:28 +00:00
Owen Anderson 14646cc074 Update CMake files.
llvm-svn: 109081
2010-07-22 06:00:01 +00:00
Reid Kleckner d85e3c5a86 Initial modifications to MCAssembler and TargetMachine for the MCJIT.
Patch by Olivier Meurant!

llvm-svn: 109080
2010-07-22 05:58:53 +00:00
Evan Cheng bd81bff672 Initialize RegLimit only when register pressure is being tracked.
llvm-svn: 109079
2010-07-22 05:18:41 +00:00
Eric Christopher 9a77382685 Custom lower the memory barrier instructions and add support
for lowering without sse2.  Add a couple of new testcases.

Fixes a few libgomp tests and latent bugs.  Remove a few todos.

llvm-svn: 109078
2010-07-22 02:48:34 +00:00
Evan Cheng 3fabe07d4c Fix constant island pass's handling of tBR_JTr. The offset of the instruction does not have to be 4-byte aligned. Rather, it's the offset + 2 that must be aligned since the instruction expands into:
mov     pc, r1
        .align  2
LJTI0_0_0:
        .long    LBB0_14

This fixes rdar://8213383. No test case since it's not possible to come up with a suitable small one.

llvm-svn: 109076
2010-07-22 02:09:47 +00:00
Eric Christopher a4c435f1fa 80-columns.
llvm-svn: 109070
2010-07-22 00:26:08 +00:00
Nate Begeman 68a069a188 Make fast isel win64-aware w.r.t. call-clobbered regs
llvm-svn: 109069
2010-07-22 00:09:39 +00:00
Evan Cheng 285903853f More register pressure aware scheduling work.
llvm-svn: 109064
2010-07-21 23:53:58 +00:00
Bruno Cardoso Lopes e3acfd4d58 Add more 256-bit forms for a bunch of regular AVX instructions
Add 64-bit (GR64) versions of some instructions (which are not
described in their SSE forms, but are described in AVX)

llvm-svn: 109063
2010-07-21 23:53:50 +00:00
Dan Gohman 2637cc1a38 Make NamedMDNode not be a subclass of Value, and simplify the interface
for creating and populating NamedMDNodes.

llvm-svn: 109061
2010-07-21 23:38:33 +00:00
Rafael Espindola 350b1a449f Fixes win64. It was broken by a previous patch where I missed the !isWin64
and then forced every register to be a vr128 on win64.

llvm-svn: 109060
2010-07-21 23:19:57 +00:00
Owen Anderson ac4a1ede17 Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration.
llvm-svn: 109058
2010-07-21 23:07:00 +00:00
Jim Grosbach 965a73a28c For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb
rdar://8202967

llvm-svn: 109057
2010-07-21 23:03:52 +00:00
Chris Lattner 5c91a5e747 add some rough support for making mcinst lowering work without an
asmprinter or mangler around.  This is option #B for killing off 
X86InstrInfo::GetInstSizeInBytes.  Option #A (killing 
"needsexactsize") was sent for consideration to llvmdev.

llvm-svn: 109056
2010-07-21 23:03:35 +00:00
Eric Christopher 84bdfd80df Baby steps towards ARM fast-isel.
llvm-svn: 109047
2010-07-21 22:26:11 +00:00
Owen Anderson a57b97e7e7 Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
llvm-svn: 109045
2010-07-21 22:09:45 +00:00
Bruno Cardoso Lopes 6238c1d102 Add missing AVX convert instructions. Those instructions are not described in their SSE forms (although they exist), but add the AVX forms anyway, so the assembler can benefit from it
llvm-svn: 109039
2010-07-21 21:37:59 +00:00
Jim Grosbach 6cd0deb997 tidy up.
llvm-svn: 109038
2010-07-21 21:36:25 +00:00
Jim Grosbach a8683bb033 80 column and trailing whitespace cleanup
llvm-svn: 109037
2010-07-21 21:21:52 +00:00
Dan Gohman 47dc8fd67a Add some debug output to help diagnose PR7689.
llvm-svn: 109036
2010-07-21 21:18:37 +00:00
Nate Begeman 784e062b2a Fix a couple issues with Win64 ABI
1) all registers were spilled as xmm, regardless of actual size
2) win64 abi doesn't do the varargs-size-in-%al thing

Still to look into:

xmm6-15 are marked as clobbered by call instructions on win64 even though they aren't.

llvm-svn: 109035
2010-07-21 20:49:52 +00:00
Bruno Cardoso Lopes 19b3830142 Avoid AVX instructions to be selected instead of its SSE form
llvm-svn: 109032
2010-07-21 20:38:42 +00:00
Dan Gohman 477498f3d7 NamedMDNode is never an operand.
llvm-svn: 109031
2010-07-21 20:25:43 +00:00
Dan Gohman 093cb79d4b Disallow null as a named metadata operand.
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
2010-07-21 18:54:18 +00:00
Dan Gohman 846b9e15db Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes
referenced by NamedMDNodes shouldn't be deleted.

llvm-svn: 109021
2010-07-21 18:01:42 +00:00
Dan Gohman 2b68cc68ed Tidy.
llvm-svn: 109020
2010-07-21 17:53:53 +00:00
Owen Anderson 845b14ef66 Move the smarts of AnalysisGroup registration into PassRegistry.
llvm-svn: 109019
2010-07-21 17:52:45 +00:00
Rafael Espindola 4277e14dc4 Fix calling convention on ARM if vfp2+ is enabled.
llvm-svn: 109009
2010-07-21 11:38:30 +00:00
Eric Christopher d27913e516 Pulling out previous patch, must've run the tests in
the wrong directory.

llvm-svn: 109005
2010-07-21 09:23:56 +00:00
Eric Christopher b2d1067024 Lower MEMBARRIER on x86 and support processors without SSE2.
Fixes a pile of libgomp failures in the llvm-gcc testsuite due
to the libcall not existing.

llvm-svn: 109004
2010-07-21 09:05:23 +00:00
Lang Hames bdafcc633d Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function.
llvm-svn: 109003
2010-07-21 09:02:06 +00:00