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c31bcce147
llvm-mirror/test/Transforms
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Simon Pilgrim c31bcce147 [InstCombine] Fix SSE2/AVX2 vector logical shift by constant 
This patch fixes the sse2/avx2 vector shift by constant instcombine call to correctly deal with the fact that the shift amount is formed from the entire lower 64-bit and not just the lowest element as it currently assumes.

e.g.

%1 = tail call <4 x i32> @llvm.x86.sse2.psrl.d(<4 x i32> %v, <4 x i32> <i32 15, i32 15, i32 15, i32 15>)

In this case, (V)PSRLD doesn't perform a lshr by 15 but in fact attempts to shift by 64424509455 ((15 << 32) | 15) - giving a zero result.

In addition, this review also recognizes shift-by-zero from a ConstantAggregateZero type (PR23821).

Differential Revision: http://reviews.llvm.org/D11760

llvm-svn: 244341
2015-08-07 18:22:50 +00:00
..
ADCE Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
AddDiscriminators DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
AlignmentFromAssumptions [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ArgumentPromotion DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
AtomicExpand Fix an alignment error in llvm::expandAtomicRMWToCmpXchg without breaking the build where X86 isn't enabled. 2015-08-06 16:55:03 +00:00
BBVectorize Changed renaming of local symbols by inserting a dot vefore the numeric suffix. 2015-05-12 16:47:30 +00:00
BDCE Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
BranchFolding Update test suite to make "ninja check" succeed without native backend builtin 2015-08-04 06:32:54 +00:00
CodeExtractor Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
CodeGenPrepare AMDGPU: Fix some places missed in rename 2015-06-19 17:39:03 +00:00
ConstantHoisting [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
ConstantMerge [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
ConstProp Fix assert when inlining a constantexpr addrspacecast 2015-07-27 18:31:03 +00:00
CorrelatedValuePropagation [CVP] Don't assume Constants of type i1 can be known to be true or false 2015-06-06 04:56:51 +00:00
DeadArgElim DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
DeadStoreElimination DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
EarlyCSE Correct a mistaken comment from 238071 [NFC] 2015-05-23 00:05:43 +00:00
EliminateAvailableExternally Don't change the visibility when converting a definition to a declaration. 2015-07-13 14:18:22 +00:00
Float2Int Reapply r233175 and r233183: float2int. 2015-03-27 10:36:57 +00:00
FunctionAttrs Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
GCOVProfiling DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
GlobalDCE [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
GlobalOpt DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
GVN GVN: tolerate an instruction being replaced without existing in the leaderboard 2015-07-14 21:03:18 +00:00
IndVarSimplify [IndVars] Fix PR24356. 2015-08-06 20:43:41 +00:00
Inline DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
InstCombine [InstCombine] Fix SSE2/AVX2 vector logical shift by constant 2015-08-07 18:22:50 +00:00
InstMerge [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
InstSimplify [InstSimplify] Teach InstSimplify how to simplify extractelement 2015-07-13 01:15:53 +00:00
Internalize Internalize: internalize comdat members as a group, and drop comdat on such members. 2015-07-16 17:42:21 +00:00
IPConstantProp Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
IRCE [IRCE] Fix a regression introduced in r232444. 2015-03-24 19:29:18 +00:00
JumpThreading Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
LCSSA Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
LICM DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
LoadCombine [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
LoopDeletion [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
LoopDistribute [LAA] Merge memchecks for accesses separated by a constant offset 2015-07-08 09:16:33 +00:00
LoopIdiom DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
LoopInterchange Add support to interchange loops with reductions. 2015-04-23 04:51:44 +00:00
LoopReroll Handle loop with negtive induction variable increment 2015-07-24 22:01:49 +00:00
LoopRotate DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
LoopSimplify [LoopSimplify] Set proper debug location in loop backedge blocks. 2015-06-29 21:30:14 +00:00
LoopStrengthReduce Revert "[LSR] Generate and use zero extends" 2015-08-04 01:52:05 +00:00
LoopUnroll [Unroll] Improve the brute force loop unroll estimate by propagating 2015-08-03 20:32:27 +00:00
LoopUnswitch [LoopUnswitch] Preserve make.implicit metadata for unswitched conditions 2015-08-05 21:13:26 +00:00
LoopVectorize DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
LowerAtomic [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
LowerBitSets LowerBitSets: Ignore bitset entries that do not directly refer to a global. 2015-06-27 00:17:51 +00:00
LowerExpectIntrinsic [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
LowerInvoke Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
LowerSwitch Changed renaming of local symbols by inserting a dot vefore the numeric suffix. 2015-05-12 16:47:30 +00:00
Mem2Reg DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
MemCpyOpt [MemCpyOpt] Do move the memset, but look at its dest's dependencies. 2015-05-21 01:43:39 +00:00
MergeFunc MergeFunc: Transfer the callee's attributes when replacing a direct caller 2015-07-21 17:07:07 +00:00
MetaRenamer [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
NaryReassociate [NaryReassociate] enhances nsw by leveraging @llvm.assume 2015-07-01 03:38:49 +00:00
ObjCARC DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
PartiallyInlineLibCalls PartiallyInlineLibCalls: Check sqrt result type before transforming it. 2014-08-01 23:21:21 +00:00
PhaseOrdering Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
PlaceSafepoints [Statepoints] Let patchable statepoints have a symbolic call target. 2015-07-28 23:50:30 +00:00
PruneEH [PruneEH] A naked, noinline function can return via InlineAsm 2015-06-27 07:52:53 +00:00
Reassociate [Reassociation] Fix miscompile for va_arg arguments. 2015-08-06 18:44:34 +00:00
Reg2Mem Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
RewriteStatepointsForGC [RewriteStatepointsForGC] Adjust naming scheme to be more stable 2015-07-24 19:01:39 +00:00
SafeStack SafeStack: Create the unsafe stack pointer on demand. 2015-06-22 20:26:54 +00:00
SampleProfile DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
Scalarizer DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
ScalarRepl DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
SCCP [ConstantFolding] Support folding loads from a GlobalAlias 2015-07-22 22:29:30 +00:00
SeparateConstOffsetFromGEP AMDGPU: Fix some places missed in rename 2015-06-19 17:39:03 +00:00
SimplifyCFG DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
Sink Teach the IR Sink pass to (conservatively) respect convergent annotations. 2015-06-01 17:20:31 +00:00
SLPVectorizer DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
SpeculativeExecution Add a speculative execution pass 2015-05-15 17:54:48 +00:00
SROA [SROA] Fix a nasty pile of bugs to do with big-endian, different alloca 2015-07-22 03:32:42 +00:00
StraightLineStrengthReduce [NVPTX] enable SpeculativeExecution in NVPTX 2015-07-16 20:13:48 +00:00
StripSymbols DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
StructurizeCFG [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
TailCallElim TRE: Just erase dead BBs and tweak the iteration loop not to increment the deleted BB iterator. 2015-02-28 16:47:27 +00:00
TailDup [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
Util Changed renaming of local symbols by inserting a dot vefore the numeric suffix. 2015-05-12 16:47:30 +00:00