Dan Gohman [Fri, 12 Nov 2010 02:19:17 +0000 (02:19 +0000)]
Enhance DSE to handle the case where a free call makes more than
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118875
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Dan Gohman [Fri, 12 Nov 2010 02:02:39 +0000 (02:02 +0000)]
Filecheckize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118874
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Dale Johannesen [Fri, 12 Nov 2010 00:43:18 +0000 (00:43 +0000)]
Remove possibly useful info from comment, per Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118865
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Bruno Cardoso Lopes [Fri, 12 Nov 2010 00:38:32 +0000 (00:38 +0000)]
Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118864
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Chris Lattner [Fri, 12 Nov 2010 00:19:41 +0000 (00:19 +0000)]
describe the preferred approach to silencing 'unused variable warnings' due to asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118863
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Chris Lattner [Fri, 12 Nov 2010 00:00:21 +0000 (00:00 +0000)]
add operand iterator apis to MachineInstr, patch by ether zhhb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118862
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Jim Grosbach [Thu, 11 Nov 2010 23:41:09 +0000 (23:41 +0000)]
Start of support for binary emit of 16-it Thumb instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118859
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Owen Anderson [Thu, 11 Nov 2010 23:12:55 +0000 (23:12 +0000)]
Fill out support for Thumb2 encodings of NEON instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118854
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Wesley Peck [Thu, 11 Nov 2010 22:21:08 +0000 (22:21 +0000)]
The BRK instruction in the MicroBlaze is a branch-and-link.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118848
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Nick Lewycky [Thu, 11 Nov 2010 21:51:44 +0000 (21:51 +0000)]
Doxygenify
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118846
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Dan Gohman [Thu, 11 Nov 2010 21:50:19 +0000 (21:50 +0000)]
Add helper functions for computing the Location of load, store,
and vaarg instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845
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Wesley Peck [Thu, 11 Nov 2010 21:40:53 +0000 (21:40 +0000)]
Fix tblgen instruction errors exposed by MC asm parser tests
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118844
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Owen Anderson [Thu, 11 Nov 2010 21:36:43 +0000 (21:36 +0000)]
Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118843
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Dan Gohman [Thu, 11 Nov 2010 21:27:26 +0000 (21:27 +0000)]
Don't forget the TBAA info, if available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118842
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Dan Gohman [Thu, 11 Nov 2010 21:23:25 +0000 (21:23 +0000)]
Factor out Instruction::isSafeToSpeculativelyExecute's code for
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer. Teach it how to reason about GEPs
with simple non-zero indices.
Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118840
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Owen Anderson [Thu, 11 Nov 2010 21:15:47 +0000 (21:15 +0000)]
Flesh out tests for Thumb2 encodings of NEON instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118837
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Dan Gohman [Thu, 11 Nov 2010 21:08:46 +0000 (21:08 +0000)]
Delete unneeded ssp attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118836
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Eric Christopher [Thu, 11 Nov 2010 20:50:14 +0000 (20:50 +0000)]
Revert the accidental commit I made reverting the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118835
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Jim Grosbach [Thu, 11 Nov 2010 20:16:23 +0000 (20:16 +0000)]
Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118831
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Jim Grosbach [Thu, 11 Nov 2010 20:05:40 +0000 (20:05 +0000)]
ARM fixup encoding for direct call instructions (BL).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118829
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Eric Christopher [Thu, 11 Nov 2010 19:47:02 +0000 (19:47 +0000)]
Revert this temporarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118827
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Eric Christopher [Thu, 11 Nov 2010 19:26:03 +0000 (19:26 +0000)]
Change the prologue and epilogue to use push/pop for the low ARM registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118823
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Dan Gohman [Thu, 11 Nov 2010 19:23:51 +0000 (19:23 +0000)]
Avoid calling alias on non-pointer values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118822
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Owen Anderson [Thu, 11 Nov 2010 19:07:48 +0000 (19:07 +0000)]
Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure.
More tests to come.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118819
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Rafael Espindola [Thu, 11 Nov 2010 19:04:55 +0000 (19:04 +0000)]
Mark labels declared in tls sections as STT_TLS. This matches the behavior of
gas.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118818
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Wesley Peck [Thu, 11 Nov 2010 18:41:33 +0000 (18:41 +0000)]
Fixed some bugs in MBlaze asm parser that were introduced when removing OwningPtrs from the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118807
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Chris Lattner [Thu, 11 Nov 2010 18:23:57 +0000 (18:23 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118806
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Rafael Espindola [Thu, 11 Nov 2010 18:13:52 +0000 (18:13 +0000)]
Initial comdat implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805
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Dan Gohman [Thu, 11 Nov 2010 18:09:32 +0000 (18:09 +0000)]
TBAA-enable ArgumentPromotion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118804
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Dan Gohman [Thu, 11 Nov 2010 18:08:43 +0000 (18:08 +0000)]
Add a FIXME comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118803
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Jim Grosbach [Thu, 11 Nov 2010 18:04:49 +0000 (18:04 +0000)]
Encoding of destination fixup for ARM branch and conditional branch
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118801
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Andrew Trick [Thu, 11 Nov 2010 17:46:29 +0000 (17:46 +0000)]
Check TRI->getReservedRegs because other allocators do it. Even though
it makes no sense for allocation_order iterators to visit reserved regs.
The inline spiller depends on AliasAnalysis.
Manage the Query state to avoid uninitialized or stale results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118800
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Dan Gohman [Thu, 11 Nov 2010 17:33:39 +0000 (17:33 +0000)]
Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118799
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Rafael Espindola [Thu, 11 Nov 2010 17:24:43 +0000 (17:24 +0000)]
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
a weakref is used with a VariantKind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118798
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Chris Lattner [Thu, 11 Nov 2010 17:17:56 +0000 (17:17 +0000)]
add pr#
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118797
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Jim Grosbach [Thu, 11 Nov 2010 16:55:29 +0000 (16:55 +0000)]
Encoding for ARM LDRSH_POST.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118794
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Rafael Espindola [Thu, 11 Nov 2010 16:48:11 +0000 (16:48 +0000)]
Fix the symbol index of weak references. Also make RecordRelocation a bit
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118793
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Dan Gohman [Thu, 11 Nov 2010 16:37:38 +0000 (16:37 +0000)]
Add brief doxygen comments for AliasResult enum values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118792
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Dan Gohman [Thu, 11 Nov 2010 16:32:17 +0000 (16:32 +0000)]
Include ImmutablePass passes in -debug-pass=Arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118790
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Dan Gohman [Thu, 11 Nov 2010 16:24:49 +0000 (16:24 +0000)]
Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118789
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Dan Gohman [Thu, 11 Nov 2010 16:21:47 +0000 (16:21 +0000)]
Make Sink tbaa-aware.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118788
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Dan Gohman [Thu, 11 Nov 2010 16:20:28 +0000 (16:20 +0000)]
It's safe to sink some instructions which are not safe to speculatively
execute. Make Sink's predicate more precise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118787
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NAKAMURA Takumi [Thu, 11 Nov 2010 04:09:35 +0000 (04:09 +0000)]
CMake: Add the new option "LLVM_LIT_ARGS".
Defaults:
if (MSVC OR XCODE): "-sv --no-progress-bar"
else: "-sv"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118776
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Rafael Espindola [Thu, 11 Nov 2010 03:40:25 +0000 (03:40 +0000)]
Remove some explicit arguments to getELFSection. This is
a leftover from the removal of isExplicit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118774
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Jim Grosbach [Thu, 11 Nov 2010 01:55:59 +0000 (01:55 +0000)]
Encoding for ARM LDRSH and LDRSH_PRE. Cannonicalize operand names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118767
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Jim Grosbach [Thu, 11 Nov 2010 01:27:41 +0000 (01:27 +0000)]
Fix encoding of Ra register for ARM smla* instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118761
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Owen Anderson [Thu, 11 Nov 2010 01:19:24 +0000 (01:19 +0000)]
Add support for specifying a PostEncoderMethod, which can perform post-processing after the automated encoding of an instruction.
Not yet used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118759
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Jim Grosbach [Thu, 11 Nov 2010 01:09:40 +0000 (01:09 +0000)]
ARM STRH encoding information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118757
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Dan Gohman [Thu, 11 Nov 2010 01:03:30 +0000 (01:03 +0000)]
Add a testcase which demonstrates alias analysis pass precedence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118755
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Jakob Stoklund Olesen [Thu, 11 Nov 2010 00:52:44 +0000 (00:52 +0000)]
Delete SplittingSpiller. It was not being used by anyone, and it is being
superceded by SplitKit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118754
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Dan Gohman [Thu, 11 Nov 2010 00:42:22 +0000 (00:42 +0000)]
It's not necessary to clear out the Size and TBAATag at each of
these points.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118752
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Dan Gohman [Thu, 11 Nov 2010 00:20:27 +0000 (00:20 +0000)]
Set NonLocalDepInfo's Size field to UnknownSize when invalidating
it, so that it doesn't appear to be a known size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748
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Jakob Stoklund Olesen [Thu, 11 Nov 2010 00:19:20 +0000 (00:19 +0000)]
Insert two blank SlotIndexes between basic blocks instead of just one.
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.
We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.
That requires two separate indexes between blocks. One for live-outs and one for
live-ins.
With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118747
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Devang Patel [Thu, 11 Nov 2010 00:13:39 +0000 (00:13 +0000)]
Document debuginfo-tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118746
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Jakob Stoklund Olesen [Wed, 10 Nov 2010 23:56:02 +0000 (23:56 +0000)]
Delete unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118743
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Jakob Stoklund Olesen [Wed, 10 Nov 2010 23:56:00 +0000 (23:56 +0000)]
No need to add liveness that's already there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118742
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Jakob Stoklund Olesen [Wed, 10 Nov 2010 23:55:56 +0000 (23:55 +0000)]
Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing
constant loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118741
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Jim Grosbach [Wed, 10 Nov 2010 23:44:32 +0000 (23:44 +0000)]
Move LDM predicate operand encoding into base clase. Add STM missing STM
encoding bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118738
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Jim Grosbach [Wed, 10 Nov 2010 23:38:36 +0000 (23:38 +0000)]
ARM LDM encoding for the mode (ia, ib, da, db) operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118736
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Rafael Espindola [Wed, 10 Nov 2010 23:36:59 +0000 (23:36 +0000)]
Factor some code into WriteSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733
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Jim Grosbach [Wed, 10 Nov 2010 23:18:49 +0000 (23:18 +0000)]
Fix ARM encoding of non-return LDM instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118732
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Jim Grosbach [Wed, 10 Nov 2010 23:12:48 +0000 (23:12 +0000)]
Fix ARM encoding of LDM+Return instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118730
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Dan Gohman [Wed, 10 Nov 2010 22:35:02 +0000 (22:35 +0000)]
When clearing a non-local pointer dependency cache entry, clear
the reverse map too. This fixes seflhost build errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118729
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Rafael Espindola [Wed, 10 Nov 2010 22:34:07 +0000 (22:34 +0000)]
Update the section index map after we add the medatada sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728
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Devang Patel [Wed, 10 Nov 2010 22:19:21 +0000 (22:19 +0000)]
Take care of special characters while creating named MDNode name to hold function specific local variable's info.
This fixes radar
8653152. I am checking in testcase as a separate check-in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726
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Rafael Espindola [Wed, 10 Nov 2010 22:16:43 +0000 (22:16 +0000)]
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725
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Dan Gohman [Wed, 10 Nov 2010 21:51:35 +0000 (21:51 +0000)]
Factor out the code for computing an AliasAnalysis::Location
for a given instruction into a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118723
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Rafael Espindola [Wed, 10 Nov 2010 21:51:05 +0000 (21:51 +0000)]
Factor some code into ComputeIndexMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722
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Dan Gohman [Wed, 10 Nov 2010 21:45:11 +0000 (21:45 +0000)]
Fully invalidate cached results when a prior query's size or
type is insufficient for, or incompatible with, the current query.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118721
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Nate Begeman [Wed, 10 Nov 2010 21:35:41 +0000 (21:35 +0000)]
Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build vector with 2 elts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118720
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Duncan Sands [Wed, 10 Nov 2010 20:53:24 +0000 (20:53 +0000)]
Reduce the maximum recursion depth, 5 seems pointlessly too much.
Probably it should just be 1, but compromise with 3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118718
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Dan Gohman [Wed, 10 Nov 2010 20:37:15 +0000 (20:37 +0000)]
Enhance GVN to do more precise alias queries for non-local memory
references. For example, this allows gvn to eliminate the load in
this example:
void foo(int n, int* p, int *q) {
p[0] = 0;
p[1] = 1;
if (n) {
*q = p[0];
}
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714
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Rafael Espindola [Wed, 10 Nov 2010 20:02:59 +0000 (20:02 +0000)]
Change the String<size> methods to take a fragment instead of a buffer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709
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Jakob Stoklund Olesen [Wed, 10 Nov 2010 19:31:50 +0000 (19:31 +0000)]
Basic rematerialization during splitting.
Whenever splitting wants to insert a copy, it checks if the value can be
rematerialized cheaply instead.
Missing features:
- Delete instructions when all uses have been rematerialized.
- Truncate live ranges to the remaining uses after rematerialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118702
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Andrew Trick [Wed, 10 Nov 2010 19:18:47 +0000 (19:18 +0000)]
RABasic is nearly functionally complete. There are a few remaining
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701
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Rafael Espindola [Wed, 10 Nov 2010 19:05:07 +0000 (19:05 +0000)]
Use MCSectionELF in places we know we have an ELF section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699
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Dan Gohman [Wed, 10 Nov 2010 19:03:33 +0000 (19:03 +0000)]
Use getValueOperand() and getPointerOperand() on load and store
instructions instead of hard-coding operand numbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118698
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Dan Gohman [Wed, 10 Nov 2010 18:30:00 +0000 (18:30 +0000)]
Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite
their comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696
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Duncan Sands [Wed, 10 Nov 2010 18:23:01 +0000 (18:23 +0000)]
Teach InstructionSimplify how to look through PHI nodes. Since PHI
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit. It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118694
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Dan Gohman [Wed, 10 Nov 2010 18:18:23 +0000 (18:18 +0000)]
Fix a copy+pasto Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693
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Dan Gohman [Wed, 10 Nov 2010 18:17:28 +0000 (18:17 +0000)]
Add a doesAccessArgPointees helper function, and update code to use
it, and to be consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692
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Jim Grosbach [Wed, 10 Nov 2010 17:59:10 +0000 (17:59 +0000)]
Simplify and clean up MC symbol lookup for ARM constant pool values. This fixes
double quoting of ObjC symbol names in constant pool entries.
rdar://
8652107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118688
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Dan Gohman [Wed, 10 Nov 2010 17:34:04 +0000 (17:34 +0000)]
Factor out the code for testing whether a function accesses
arbitrary memory into a helper function, and adjust some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687
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Dan Gohman [Wed, 10 Nov 2010 17:15:52 +0000 (17:15 +0000)]
Give NonLocalDepResult a NonLocalDepEntry member, replacing
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686
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Tobias Grosser [Wed, 10 Nov 2010 16:31:34 +0000 (16:31 +0000)]
Detect if llvm-gcc is built on dragonegg.
Store the flags needed to disable optimizations and to emit LLVM-IR depending on
the version of llvm-gcc used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118684
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Michael J. Spencer [Wed, 10 Nov 2010 15:06:00 +0000 (15:06 +0000)]
Fix Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118683
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Michael J. Spencer [Wed, 10 Nov 2010 15:05:50 +0000 (15:05 +0000)]
System/Path: Update comments to match code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118682
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Michael J. Spencer [Wed, 10 Nov 2010 15:05:39 +0000 (15:05 +0000)]
System/Win32/Path: Implement isSymLink.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118681
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Duncan Sands [Wed, 10 Nov 2010 13:00:08 +0000 (13:00 +0000)]
Simplify binary operations where one operand is a select instruction.
The simplifications performed here never create new instructions, they
only return existing instructions (or a constant), and so are always a
win. In theory they should transform (for example)
%z = and i32 %x, %y
%s = select i1 %cond, i32 %y, i32 %z
%r = and i32 %x, %s
into
%r = and i32 %x, y
but in practice they get into a fight with instcombine, and lose.
Unfortunately instcombine does a poor job in this case. Nonetheless
I'm committing this transform to make it easier to discuss what to
do to make peace with instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118679
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NAKAMURA Takumi [Wed, 10 Nov 2010 08:37:47 +0000 (08:37 +0000)]
Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API.
The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118678
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Duncan Sands [Wed, 10 Nov 2010 07:46:36 +0000 (07:46 +0000)]
There is no EndPtr anymore - reinterpret the original comment in terms
of InputData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118677
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Jim Grosbach [Wed, 10 Nov 2010 03:26:07 +0000 (03:26 +0000)]
Update ARMConstantPoolValue to not use a modifier string. Use an explicit
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://
8647623
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671
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Bruno Cardoso Lopes [Wed, 10 Nov 2010 02:22:44 +0000 (02:22 +0000)]
Add a test to the previous added clo instruction. Patch by Akira again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118668
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Bruno Cardoso Lopes [Wed, 10 Nov 2010 02:13:22 +0000 (02:13 +0000)]
Add clo instruction. Patch by Akira Hatanaka (ahatanaka@mips.com) with some minor tweaks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118667
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Dale Johannesen [Wed, 10 Nov 2010 01:30:56 +0000 (01:30 +0000)]
When checking that the necessary bits are zero in
order to reduce ((x<<30)>>24) to x<<6, check the
correct bits. PR 8547.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118665
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Bill Wendling [Wed, 10 Nov 2010 01:07:54 +0000 (01:07 +0000)]
Emit a '!' if this is a "writeback" register or memory address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118662
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Jakob Stoklund Olesen [Wed, 10 Nov 2010 01:05:12 +0000 (01:05 +0000)]
Simplify the LiveRangeEdit::canRematerializeAt() interface a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118661
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Dan Gohman [Wed, 10 Nov 2010 01:02:18 +0000 (01:02 +0000)]
Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis
chaining and simplify FunctionAttrs' GetModRefBehavior logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660
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Matt Beaumont-Gay [Wed, 10 Nov 2010 00:08:58 +0000 (00:08 +0000)]
Rename a parameter to avoid confusion with a local variable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118656
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Bill Wendling [Tue, 9 Nov 2010 23:45:59 +0000 (23:45 +0000)]
Emit the warning about the register list not being in ascending order only once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118653
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