Sanjay Patel 08e3bf995e [ValueTracking] fix bug computing isKnownToBeAPowerOfTwo() with arithmetic shift right (PR25900) ...

This is a fix for:
https://llvm.org/bugs/show_bug.cgi?id=25900

If we think that an arithmetic right shift of a power of two is always a power of two, 
an sdiv gets wrongly converted to udiv.

Differential Revision: http://reviews.llvm.org/D15827



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256655 91177308-0d34-0410-b5e6-96231b3b80d8

2015-12-30 22:40:52 +00:00

..

AssumptionCache

[PM] Actually add the new pass manager support for the assumption cache.

2015-01-22 21:53:09 +00:00

BasicAA

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +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

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

CFLAliasAnalysis

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +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

Compute demanded bits for icmp instructions

2015-10-08 12:40:06 +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

[OperandBundles] Have GlobalsModRef play nice with operand bundles

2015-12-23 09:58:46 +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

Fix LoopAccessAnalysis when potentially nullptr check are involved

2015-11-05 05:49:43 +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

FileCheck-ize tests.

2013-08-22 00:51:19 +00:00

RegionInfo

[tests] Cleanup initialization of test suffixes.

2013-08-16 00:37:11 +00:00

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

[ValueTracking] fix bug computing isKnownToBeAPowerOfTwo() with arithmetic shift right (PR25900)

2015-12-30 22:40:52 +00:00