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James Molloy 121de0bcfa [DemandedBits] Fix computation of demanded bits for ICmps 
The computation of ICmp demanded bits is independent of the individual operand being evaluated. We simply return a mask consisting of the minimum leading zeroes of both operands.

We were incorrectly passing "I" to ComputeKnownBits - this should be "UserI->getOperand(0)". In cases where we were evaluating the 1th operand, we were taking the minimum leading zeroes of it and itself.

This should fix PR26266.

llvm-svn: 258690
 		2016-01-25 14:49:36 +00:00
..
AssumptionCache [PM] Actually add the new pass manager support for the assumption cache. 2015-01-22 21:53:09 +00:00
BasicAA [BasicAA] Remove special casing of memset_pattern16 in favor of generic attribute inference 2016-01-06 04:53:16 +00:00
BlockFrequencyInfo Use getEdgeProbability() instead of getEdgeWeight() in BFI and remove getEdgeWeight() interfaces from MBPI. 2015-12-18 21:53:24 +00:00
BranchProbabilityInfo [BPI] Replace weights by probabilities in BPI. 2015-12-22 18:56:14 +00:00
CFLAliasAnalysis [PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible 2015-09-09 17:55:00 +00:00
CallGraph [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
CostModel Implemented cost model for masked gather and scatter operations 2015-12-28 20:10:59 +00:00
Delinearization [SCEV] Mark AddExprs as nsw or nuw if legal 2015-10-22 19:57:19 +00:00
DemandedBits [DemandedBits] Fix computation of demanded bits for ICmps 2016-01-25 14:49:36 +00:00
DependenceAnalysis Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
DivergenceAnalysis AMDGPU/SI: Fix implemenation of isSourceOfDivergence() for graphics shaders 2015-12-19 02:54:15 +00:00
Dominators Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
GlobalsModRef [GlobalsAA] Relax condition in checking globals as args to functions 2016-01-14 08:46:45 +00:00
LazyCallGraph [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
Lint [WinEH] Delete the old landingpad implementation of Windows EH 2015-10-09 23:34:53 +00:00
LoopAccessAnalysis [Vectorization] Actually return from error case in isStridedPtr 2016-01-08 01:55:13 +00:00
LoopInfo [PM] Port LoopInfo to the new pass manager, adding both a LoopAnalysis 2015-01-20 10:58:50 +00:00
MemoryDependenceAnalysis [MDA] change BlockScanLimit into a command line option. 2015-07-21 21:50:39 +00:00
PostDominators
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RegionInfo
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ScalarEvolution Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
ScopedNoAliasAA [Testsuite] Renumber metadata in ScopedNoAliasAA test to match CHECK lines 2015-05-11 09:10:14 +00:00
TypeBasedAliasAnalysis Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
ValueTracking Revert "[ValueTracking] Understand more select patterns in ComputeKnownBits" 2016-01-14 15:49:32 +00:00