NAKAMURA Takumi bb9004e0dc Revert r170020, "Simplify negated bit test", for now. ...

This assumes (1 << n) is always not zero. Consider n is greater than word size.
Although I know it is undefined, this transforms undefined behavior hidden.

This led clang unexpected behavior with some failures. I will investigate to fix undefined shl in clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170128 91177308-0d34-0410-b5e6-96231b3b80d8

2012-12-13 14:28:16 +00:00

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ADCE

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ArgumentPromotion

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BBVectorize

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BlockPlacement

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BranchFolding

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CodeExtractor

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CodeGenPrepare

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ConstantMerge

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ConstProp

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CorrelatedValuePropagation

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DeadArgElim

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DeadStoreElimination

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EarlyCSE

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FunctionAttrs

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GlobalDCE

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GlobalOpt

Revert previous check in r168581, r169079 as they are still in code review status.

2012-12-01 10:54:28 +00:00

GVN

unHECKify test. It was fixed by Chris in 2009.

2012-12-12 20:43:00 +00:00

IndVarSimplify

Follow up to 168711: It's safe to base this analysis on the found compare, just return the value for the right predicate.

2012-11-29 19:07:57 +00:00

Inline

Take into account minimize size attribute in the inliner.

2012-12-13 01:05:25 +00:00

InstCombine

Revert r170020, "Simplify negated bit test", for now.

2012-12-13 14:28:16 +00:00

InstSimplify

Added a slew of SimplifyInstruction floating-point optimizations, many of which take advantage of fast-math flags. Test cases included.

2012-12-12 00:27:46 +00:00

Internalize

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IPConstantProp

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JumpThreading

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LCSSA

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LICM

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LoopDeletion

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LoopIdiom

- Re-enable population count loop idiom recognization

2012-12-09 03:12:46 +00:00

LoopRotate

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LoopSimplify

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LoopStrengthReduce

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LoopUnroll

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LoopUnswitch

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LoopVectorize

Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc.

2012-12-13 00:21:03 +00:00

LowerAtomic

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LowerExpectIntrinsic

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LowerInvoke

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LowerSwitch

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Mem2Reg

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MemCpyOpt

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MergeFunc

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MetaRenamer

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ObjCARC

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PhaseOrdering

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PruneEH

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Reassociate

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ScalarRepl

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SCCP

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SimplifyCFG

Fix logic to determine whether to turn a switch into a lookup table. When

2012-11-30 02:02:42 +00:00

SimplifyLibCalls

instcombine: Migrate puts optimizations

2012-11-29 19:15:17 +00:00

Sink

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SROA

Fix typo in test-case.

2012-12-12 20:29:06 +00:00

StripSymbols

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TailCallElim

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TailDup

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