OSDN Git Service
Andrew Trick [Tue, 11 Sep 2012 00:39:15 +0000 (00:39 +0000)]
Reorganize MachineScheduler interfaces and publish them in the header.
The Hexagon target decided to use a lot of functionality from the
target-independent scheduler. That's fine, and other targets should be
able to do the same. This reorg and API update makes that easy.
For the record, ScheduleDAGMI was not meant to be subclassed. Instead,
new scheduling algorithms should be able to implement
MachineSchedStrategy and be done. But if need be, it's nice to be
able to extend ScheduleDAGMI, so I also made that easier. The target
scheduler is somewhat more apt to break that way though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163580
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Andrew Trick [Tue, 11 Sep 2012 00:39:12 +0000 (00:39 +0000)]
Remove unused declaration
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163579
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Eric Christopher [Mon, 10 Sep 2012 23:34:06 +0000 (23:34 +0000)]
Revert r160148 it seems to cause more problems than it should
right now. We'll fix PR13303 a different way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163570
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Eric Christopher [Mon, 10 Sep 2012 23:34:03 +0000 (23:34 +0000)]
80-col fixup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163569
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Eric Christopher [Mon, 10 Sep 2012 23:34:00 +0000 (23:34 +0000)]
80-col fixup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163568
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Eric Christopher [Mon, 10 Sep 2012 23:33:57 +0000 (23:33 +0000)]
No reason to construct this twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163567
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Chad Rosier [Mon, 10 Sep 2012 23:09:27 +0000 (23:09 +0000)]
Add newline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163565
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Chad Rosier [Mon, 10 Sep 2012 22:50:57 +0000 (22:50 +0000)]
Update function names to conform to guidelines. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163561
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Chad Rosier [Mon, 10 Sep 2012 22:30:35 +0000 (22:30 +0000)]
Revert r163556. Missed updates to tablegen files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163557
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Chad Rosier [Mon, 10 Sep 2012 22:23:45 +0000 (22:23 +0000)]
Update function names to conform to guidelines. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163556
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NAKAMURA Takumi [Mon, 10 Sep 2012 22:04:54 +0000 (22:04 +0000)]
test/CodeGen/X86/ms-inline-asm.ll: Relax for non-darwin x86 targets. '##InlineAsm' could not be seen in other hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163554
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Chad Rosier [Mon, 10 Sep 2012 21:36:05 +0000 (21:36 +0000)]
[ms-inline asm] Properly emit the asm directives when the AsmPrinterVariant
and InlineAsmVariant don't match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163550
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Chad Rosier [Mon, 10 Sep 2012 21:31:43 +0000 (21:31 +0000)]
Update test case for Release builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163549
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Dmitri Gribenko [Mon, 10 Sep 2012 21:26:47 +0000 (21:26 +0000)]
Remove redundant semicolons which are null statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163547
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Nadav Rotem [Mon, 10 Sep 2012 21:17:58 +0000 (21:17 +0000)]
Disable stack coloring because it makes dragonegg fail bootstrapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163545
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Chad Rosier [Mon, 10 Sep 2012 21:10:49 +0000 (21:10 +0000)]
[ms-inline asm] Pass the correct AsmVariant to the PrintAsmOperand() function
and update the printOperand() function accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163544
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Chad Rosier [Mon, 10 Sep 2012 20:54:39 +0000 (20:54 +0000)]
[ms-inline asm] Add support for .att_syntax directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163542
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Nadav Rotem [Mon, 10 Sep 2012 20:15:49 +0000 (20:15 +0000)]
Enable stack coloring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163539
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Jakob Stoklund Olesen [Mon, 10 Sep 2012 19:17:25 +0000 (19:17 +0000)]
Don't attempt to use flags from predicated instructions.
The ARM backend can eliminate cmp instructions by reusing flags from a
nearby sub instruction with similar arguments.
Don't do that if the sub is predicated - the flags are not written
unconditionally.
<rdar://problem/
12263428>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163535
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Michael J. Spencer [Mon, 10 Sep 2012 19:04:02 +0000 (19:04 +0000)]
[Object] Extract Elf_Ehdr. Patch by Hemant Kulkarni!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163532
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Nadav Rotem [Mon, 10 Sep 2012 18:51:09 +0000 (18:51 +0000)]
Stack Coloring: Handle the case where END markers come before BEGIN markers properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163530
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Michael Liao [Mon, 10 Sep 2012 18:33:51 +0000 (18:33 +0000)]
Enhance PR11334 fix to support extload from v2f32/v4f32
- Fix an remaining issue of PR11674 as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163528
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Sergei Larin [Mon, 10 Sep 2012 17:31:34 +0000 (17:31 +0000)]
Add "blocked" heuristic to the Hexagon MI scheduler.
Improve AQ instruction selection in the Hexagon MI scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163523
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Michael Ilseman [Mon, 10 Sep 2012 17:00:37 +0000 (17:00 +0000)]
Fold multiply by 0 or 1 when in UnsafeFPMath mode in SelectionDAG::getNode().
This folding happens as early as possible for performance reasons, and to make sure it isn't foiled by other transforms (e.g. forming FMAs).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163519
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Michael Ilseman [Mon, 10 Sep 2012 16:56:31 +0000 (16:56 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163518
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Michael Liao [Mon, 10 Sep 2012 16:36:16 +0000 (16:36 +0000)]
Add boolean simplification support from CMOV
- If a boolean value is generated from CMOV and tested as boolean value,
simplify the use of test result by referencing the original condition.
RDRAND intrinisc is one of such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163516
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James Molloy [Mon, 10 Sep 2012 14:01:21 +0000 (14:01 +0000)]
Fix an assertion failure when optimising a shufflevector incorrectly into concat_vectors, and a followup bug with SelectionDAG::getNode() creating nodes with invalid types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163511
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Nadav Rotem [Mon, 10 Sep 2012 13:20:00 +0000 (13:20 +0000)]
Minor cleanup. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163510
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Nadav Rotem [Mon, 10 Sep 2012 13:17:58 +0000 (13:17 +0000)]
Stack Coloring: Debug prints to print the slot number and not the array index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163509
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Nadav Rotem [Mon, 10 Sep 2012 12:47:38 +0000 (12:47 +0000)]
Stack Coloring: When searching for disjoint regions, do not compare intervals twice or to theirself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163508
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Nadav Rotem [Mon, 10 Sep 2012 12:39:35 +0000 (12:39 +0000)]
Stack Coloring: Add support for multiple regions of the same slot, within a single basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163507
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Elena Demikhovsky [Mon, 10 Sep 2012 12:13:11 +0000 (12:13 +0000)]
The VPSHUFB 256-bit instruction may be generated when one of input vector is undefined or zeroinitializer.
I've added the "zeroinitializer" case in this patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163506
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Benjamin Kramer [Mon, 10 Sep 2012 11:52:14 +0000 (11:52 +0000)]
Make helper function static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163504
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Benjamin Kramer [Mon, 10 Sep 2012 11:52:08 +0000 (11:52 +0000)]
Move bypassSlowDivision into the llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163503
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Benjamin Kramer [Mon, 10 Sep 2012 11:52:00 +0000 (11:52 +0000)]
c bindings: revert LLVMConstInlineAsm to always use the default asm dialect.
- The C API should be stable
- InlineAsm::AsmDialect is not exposed to C
- The function didn't match the prototype so this was unreachable code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163502
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Evgeniy Stepanov [Mon, 10 Sep 2012 10:32:29 +0000 (10:32 +0000)]
GTest on Android needs a custom tmpdir path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163501
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Nadav Rotem [Mon, 10 Sep 2012 08:51:46 +0000 (08:51 +0000)]
Fix a typo in the comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163496
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Nadav Rotem [Mon, 10 Sep 2012 08:44:15 +0000 (08:44 +0000)]
Add an assertion that the frame index is indeed inside the declared lifetime region.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163495
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Nadav Rotem [Mon, 10 Sep 2012 08:43:23 +0000 (08:43 +0000)]
Teach the DAGBuilder about lifetime markers which are generated from PHINodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163494
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Hans Wennborg [Mon, 10 Sep 2012 07:44:22 +0000 (07:44 +0000)]
Fix style issues from r163302 pointed out by Evan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163491
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Nick Lewycky [Sun, 9 Sep 2012 23:41:11 +0000 (23:41 +0000)]
Move spaces to the right places. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163485
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Nick Lewycky [Sun, 9 Sep 2012 23:40:55 +0000 (23:40 +0000)]
Add missing space before {. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163484
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Craig Topper [Sun, 9 Sep 2012 22:58:45 +0000 (22:58 +0000)]
Teach DAG combiner to constant fold fneg of a BUILD_VECTOR of constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163483
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Aaron Ballman [Sun, 9 Sep 2012 20:34:25 +0000 (20:34 +0000)]
Fixing a type width warning with MSVC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163481
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Benjamin Kramer [Sun, 9 Sep 2012 16:44:05 +0000 (16:44 +0000)]
DSE: Poking holes into a SetVector is expensive, avoid it if possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163480
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Benjamin Kramer [Sun, 9 Sep 2012 11:56:14 +0000 (11:56 +0000)]
LiveVariables: Compute a set of defs and kills to speed up updating LV during critical edge splitting.
Previously we checked if the register is def'd in a block via the def/use list a
nd walked the list of kills to check if the register is killed in a block. Both
of these checks can be made much cheaper by walking the block first and
recording all defs and kills.
This reduces the compile time of the test case from PR13651 from 40s to 15s at
-O2. The compile time is still dominated by LV updating but now the main culprit
is SparseBitVector's slowness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163478
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Craig Topper [Sat, 8 Sep 2012 17:42:27 +0000 (17:42 +0000)]
Add instruction selection for ffloor of vectors when SSE4.1 or AVX is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163473
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NAKAMURA Takumi [Sat, 8 Sep 2012 12:07:24 +0000 (12:07 +0000)]
lit: Util.which(): Use os.path.isfile() instead of os.path.exists(), or it hits to the directory.
For example, which('loop-convert') returns 'loop-convert' when the directory 'loop-convert' exists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163469
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Craig Topper [Sat, 8 Sep 2012 07:46:05 +0000 (07:46 +0000)]
Use 256-bit alignment for constant pool value for 256-bit vector FNEG lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163463
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Craig Topper [Sat, 8 Sep 2012 07:31:51 +0000 (07:31 +0000)]
Add support for lowering FABS of vector types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163461
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Craig Topper [Sat, 8 Sep 2012 04:58:43 +0000 (04:58 +0000)]
Set operation action for FFLOOR to Expand for all vector types for X86. Set FFLOOR of v4f32 to Expand for ARM. v2f64 was already correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163458
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Ted Kremenek [Sat, 8 Sep 2012 04:32:13 +0000 (04:32 +0000)]
Revert "Add -exact-match option to FileCheck to allow clients to do exact matches without using regular expressions."
Turns out I did not need it after all. If we find a use for it in the future, we
can resurrect it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163457
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Ted Kremenek [Sat, 8 Sep 2012 04:25:29 +0000 (04:25 +0000)]
Add operator< for FoldingSetNodeID.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163454
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Andrew Trick [Sat, 8 Sep 2012 00:07:26 +0000 (00:07 +0000)]
Remove an incorrect assert during branch weight propagation.
Patch and test case by Alastair Murray!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163437
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Anshuman Dasgupta [Fri, 7 Sep 2012 21:35:43 +0000 (21:35 +0000)]
Refactored DFA generator. Merged transition class into state class.
Patch by Ivan Llopard!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163424
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Alex Rosenberg [Fri, 7 Sep 2012 21:34:50 +0000 (21:34 +0000)]
Add IRC handle entry to CREDITS.TXT as a test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163423
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Sandeep Patel [Fri, 7 Sep 2012 21:20:20 +0000 (21:20 +0000)]
Correct an unfortunately necessary typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163422
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Benjamin Kramer [Fri, 7 Sep 2012 21:08:01 +0000 (21:08 +0000)]
Fix alignment of .comm and .lcomm on mingw32.
For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't
use the same setting for both. Fix this by reintroducing the LCOMM enum.
I verified this against mingw's gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163420
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Jack Carter [Fri, 7 Sep 2012 20:38:18 +0000 (20:38 +0000)]
Initial relocations test for the Mips standalone assembler.
This is not an exhaustive set, but something we can build on.
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163419
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Chad Rosier [Fri, 7 Sep 2012 20:23:29 +0000 (20:23 +0000)]
Fix indent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163416
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Benjamin Kramer [Fri, 7 Sep 2012 18:56:10 +0000 (18:56 +0000)]
Contrary to what the documentation says, .lcomm alignment on COFF is in bytes, not power of 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163405
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Chad Rosier [Fri, 7 Sep 2012 18:16:38 +0000 (18:16 +0000)]
Update function names to conform to guidelines. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163401
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Jakob Stoklund Olesen [Fri, 7 Sep 2012 17:34:15 +0000 (17:34 +0000)]
Custom DAGCombine for and/or/xor are for all ARMs.
The 'select' transformations apply to all ARM architectures and don't
require hasV6T2Ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163396
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Benjamin Kramer [Fri, 7 Sep 2012 17:25:13 +0000 (17:25 +0000)]
MC: Overhaul handling of .lcomm
- Darwin lied about not supporting .lcomm and turned it into zerofill in the
asm parser. Push the zerofill-conversion down into macho-specific code.
- This makes the tri-state LCOMMType enum superfluous, there are no targets
without .lcomm.
- Do proper error reporting when trying to use .lcomm with alignment on a target
that doesn't support it.
- .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2.
- Fixes PR13755 (.lcomm crashes on ELF).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163395
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Benjamin Kramer [Fri, 7 Sep 2012 14:51:35 +0000 (14:51 +0000)]
PR13754: llvm-mc/x86 crashes on .cfi directives without the % prefix for registers.
gas accepts this and it seems to be common enough to be worth supporting. This
doesn't affect the parsing of reg operands outside of .cfi directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163390
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Benjamin Kramer [Fri, 7 Sep 2012 09:47:42 +0000 (09:47 +0000)]
MipsAsmParser: Fix a couple of string use-after-frees and misuses of classof.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163383
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Nuno Lopes [Fri, 7 Sep 2012 09:24:13 +0000 (09:24 +0000)]
yet another attempt at fixing @OCAMLOPT@ for sed.
Patch by Rick Foos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163380
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Hans Wennborg [Fri, 7 Sep 2012 08:22:57 +0000 (08:22 +0000)]
SimplifyCFG: ValidLookupTableConstant should be static
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163378
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Ted Kremenek [Fri, 7 Sep 2012 06:47:16 +0000 (06:47 +0000)]
Add -exact-match option to FileCheck to allow clients to do exact matches without using regular expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163371
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Michael Liao [Fri, 7 Sep 2012 05:13:00 +0000 (05:13 +0000)]
Stop emitting lifetime region info when stack coloring is not enabled in O0
- this should fix PR13780
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163370
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Jack Carter [Fri, 7 Sep 2012 01:42:38 +0000 (01:42 +0000)]
The Mips standalone assembler aliased instruction support.
The assembler can alias one instruction into another based
on the operands. For example the jump instruction "J" takes
and immediate operand, but if the operand is a register the
assembler will change it into a jump register "JR" instruction.
These changes are in the instruction td file.
Test cases included
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163368
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Jack Carter [Fri, 7 Sep 2012 00:48:02 +0000 (00:48 +0000)]
The Mips standalone assembler intial directive support.
Actually these are just stubs for parsing the directives.
Semantic support will come later.
Test cases included
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163364
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Jack Carter [Fri, 7 Sep 2012 00:23:42 +0000 (00:23 +0000)]
The Mips standalone assembler fpu instruction support.
Test cases included
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163363
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Michael Liao [Thu, 6 Sep 2012 23:32:48 +0000 (23:32 +0000)]
Re-work bit/bits value resolving in tblgen
- This patch is inspired by the failure of the following code snippet
which is used to convert enumerable values into encoding bits to
improve the readability of td files.
class S<int s> {
bits<2> V = !if(!eq(s, 8), {0, 0},
!if(!eq(s, 16), {0, 1},
!if(!eq(s, 32), {1, 0},
!if(!eq(s, 64), {1, 1}, {?, ?}))));
}
Later, PR8330 is found to report not exactly the same bug relevant
issue to bit/bits values.
- Instead of resolving bit/bits values separately through
resolveBitReference(), this patch adds getBit() for all Inits and
resolves bit value by resolving plus getting the specified bit. This
unifies the resolving of bit with other values and removes redundant
logic for resolving bit only. In addition,
BitsInit::resolveReferences() is optimized to take advantage of this
origanization by resolving VarBitInit's variable reference first and
then getting bits from it.
- The type interference in '!if' operator is revised to support possible
combinations of int and bits/bit in MHS and RHS.
- As there may be illegal assignments from integer value to bit, says
assign 2 to a bit, but we only check this during instantiation in some
cases, e.g.
bit V = !if(!eq(x, 17), 0, 2);
Verbose diagnostic message is generated when invalid value is
resolveed to help locating the error.
- PR8330 is fixed as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163360
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David Blaikie [Thu, 6 Sep 2012 23:31:29 +0000 (23:31 +0000)]
Remove unused variable introduced by r163346.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163359
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Eli Friedman [Thu, 6 Sep 2012 22:55:11 +0000 (22:55 +0000)]
Don't include stdint.h directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163354
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Bill Wendling [Thu, 6 Sep 2012 21:07:57 +0000 (21:07 +0000)]
Explicitly erase the file from disk if something bad happened. <rdar://problem/
12184899>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163349
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Jack Carter [Thu, 6 Sep 2012 20:00:02 +0000 (20:00 +0000)]
The Mips standalone assembler memory instruction support.
This includes sb,sc,sh,sw,lb,lw,lbu,lh,lhu,ll,lw
Test case included
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163346
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Manman Ren [Thu, 6 Sep 2012 19:55:56 +0000 (19:55 +0000)]
Release build: guard dump functions with "ifndef NDEBUG"
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163344
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Jakob Stoklund Olesen [Thu, 6 Sep 2012 19:51:21 +0000 (19:51 +0000)]
TiedTo is an integer, not a bool.
Thanks, Andy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163343
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Manman Ren [Thu, 6 Sep 2012 19:06:06 +0000 (19:06 +0000)]
Release build: guard dump functions with "ifndef NDEBUG"
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163339
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Jakob Stoklund Olesen [Thu, 6 Sep 2012 18:15:23 +0000 (18:15 +0000)]
Allow overlaps between virtreg and physreg live ranges.
The RegisterCoalescer understands overlapping live ranges where one
register is defined as a copy of the other. With this change, register
allocators using LiveRegMatrix can do the same, at least for copies
between physical and virtual registers.
When a physreg is defined by a copy from a virtreg, allow those live
ranges to overlap:
%CL<def> = COPY %vreg11:sub_8bit; GR32_ABCD:%vreg11
%vreg13<def,tied1> = SAR32rCL %vreg13<tied0>, %CL<imp-use,kill>
We can assign %vreg11 to %ECX, overlapping the live range of %CL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163336
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Jakob Stoklund Olesen [Thu, 6 Sep 2012 18:15:18 +0000 (18:15 +0000)]
Handle overlapping regunit intervals in LiveIntervals::addKillFlags().
We will soon allow virtual register live ranges to overlap regunit live
ranges when the physreg is defined as a copy of the virtreg:
%EAX = COPY %vreg5
FOO %vreg5
BAR %EAX<kill>
There is no real interference since %vreg5 and %EAX have the same value
where they overlap.
This patch prevents addKillFlags from adding virtreg kill flags to FOO
where the assigned physreg is overlapping the virtual register live
range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163335
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Jakob Stoklund Olesen [Thu, 6 Sep 2012 18:15:15 +0000 (18:15 +0000)]
Clear kill flags while computing live ranges.
Kill flags are difficult to maintain, and liveness queries are better
handled by live intervals.
Kill flags are reinserted after register allocation by addKillFlags().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163334
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Roman Divacky [Thu, 6 Sep 2012 15:42:13 +0000 (15:42 +0000)]
Dont cast away const needlessly. Found by gcc48 -Wcast-qual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163324
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Tim Northover [Thu, 6 Sep 2012 15:27:12 +0000 (15:27 +0000)]
Diagnose invalid alignments on duplicating VLDn instructions.
Patch by Chris Lidbury.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163323
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Tim Northover [Thu, 6 Sep 2012 15:17:49 +0000 (15:17 +0000)]
Check for invalid alignment values when decoding VLDn/VSTn (single ln) instructions.
Patch by Chris Lidbury.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163321
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Arnold Schwaighofer [Thu, 6 Sep 2012 14:41:53 +0000 (14:41 +0000)]
BasicAA: Recognize cyclic NoAlias phis
Enhances basic alias analysis to recognize phis whose first incoming values are
NoAlias and whose other incoming values are just the phi node itself through
some amount of recursion.
Example: With this change basicaa reports that ptr_phi and ptr_phi2 do not alias
each other.
bb:
ptr = ptr2 + 1
loop:
ptr_phi = phi [bb, ptr], [loop, ptr_plus_one]
ptr2_phi = phi [bb, ptr2], [loop, ptr2_plus_one]
...
ptr_plus_one = gep ptr_phi, 1
ptr2_plus_one = gep ptr2_phi, 1
This enables the elimination of one load in code like the following:
extern int foo;
int test_noalias(int *ptr, int num, int* coeff) {
int *ptr2 = ptr;
int result = (*ptr++) * (*coeff--);
while (num--) {
*ptr2++ = *ptr;
result += (*coeff--) * (*ptr++);
}
*ptr = foo;
return result;
}
Part 2/2 of fix for PR13564.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163319
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Tim Northover [Thu, 6 Sep 2012 14:36:55 +0000 (14:36 +0000)]
Use correct part of complex operand to encode VST1 alignment.
Patch by Chris Lidbury.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163318
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Arnold Schwaighofer [Thu, 6 Sep 2012 14:31:51 +0000 (14:31 +0000)]
BasicAA: GEPs of NoAlias'ing base ptr with equivalent indices are NoAlias
If we can show that the base pointers of two GEPs don't alias each other using
precise analysis and the indices and base offset are equal then the two GEPs
also don't alias each other.
This is primarily needed for the follow up patch that analyses NoAlias'ing PHI
nodes.
Part 1/2 of fix for PR13564.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163317
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Nadav Rotem [Thu, 6 Sep 2012 14:27:06 +0000 (14:27 +0000)]
Disable stack coloring by default in order to resolve the i386 failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163316
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Tom Stellard [Thu, 6 Sep 2012 14:15:52 +0000 (14:15 +0000)]
Tablegen: Add OperandWithDefaultOps Operand type
This Operand type takes a default argument, and is initialized to
this value if it does not appear in a patter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163315
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Elena Demikhovsky [Thu, 6 Sep 2012 12:42:01 +0000 (12:42 +0000)]
AVX2 optimization.
Added generation of VPSHUB instruction for <32 x i8> vector shuffle when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163312
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Nadav Rotem [Thu, 6 Sep 2012 11:13:55 +0000 (11:13 +0000)]
Fix a few old-GCC warnings. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163309
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Nadav Rotem [Thu, 6 Sep 2012 10:33:33 +0000 (10:33 +0000)]
Fix the test by specifying an exact cpu model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163307
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James Molloy [Thu, 6 Sep 2012 10:32:08 +0000 (10:32 +0000)]
Fix self-host; ensure signedness is consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163306
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Hans Wennborg [Thu, 6 Sep 2012 10:10:35 +0000 (10:10 +0000)]
Fix switch_to_lookup_table.ll test from r163302.
The lookup tables did not get built in a deterministic order.
This makes them get built in the order that the corresponding phi nodes
were found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163305
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James Molloy [Thu, 6 Sep 2012 09:55:02 +0000 (09:55 +0000)]
Improve codegen for BUILD_VECTORs on ARM.
If we have a BUILD_VECTOR that is mostly a constant splat, it is often better to splat that constant then insertelement the non-constant lanes instead of insertelementing every lane from an undef base.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163304
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Hans Wennborg [Thu, 6 Sep 2012 09:43:28 +0000 (09:43 +0000)]
Build lookup tables for switches (PR884)
This adds a transformation to SimplifyCFG that attemps to turn switch
instructions into loads from lookup tables. It works on switches that
are only used to initialize one or more phi nodes in a common successor
basic block, for example:
int f(int x) {
switch (x) {
case 0: return 5;
case 1: return 4;
case 2: return -2;
case 5: return 7;
case 6: return 9;
default: return 42;
}
This speeds up the code by removing the hard-to-predict jump, and
reduces code size by removing the code for the jump targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163302
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Nadav Rotem [Thu, 6 Sep 2012 09:17:37 +0000 (09:17 +0000)]
Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be
disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163299
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