Dan Gohman d8e0c0438a Really check that the bits that will become zero are actually already zero ...

before eliminating the operation that zeros them. This fixes rdar://8739316.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121353 91177308-0d34-0410-b5e6-96231b3b80d8

2010-12-09 02:52:17 +00:00

..

ADCE

…

ArgumentPromotion

…

BlockPlacement

…

BranchFolding

…

CodeExtractor

…

CodeGenPrepare

…

ConstantMerge

…

ConstProp

Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue.

2010-11-29 20:36:52 +00:00

CorrelatedValuePropagation

…

DeadArgElim

…

DeadStoreElimination

Fix PR8728, a miscompilation I recently introduced. When optimizing

2010-12-06 01:48:06 +00:00

FunctionAttrs

…

GlobalDCE

…

GlobalOpt

reapply r121100 with a tweak to constant fold ConstExprs with TargetData

2010-12-07 04:33:29 +00:00

GVN

…

IndVarSimplify

…

Inline

…

InstCombine

Really check that the bits that will become zero are actually already zero

2010-12-09 02:52:17 +00:00

Internalize

…

IPConstantProp

…

JumpThreading

Implement jump threading of 'indirectbr' by keeping track of whether we're looking for ConstantInt*s or BlockAddress*s.

2010-12-06 23:36:56 +00:00

LCSSA

…

LICM

…

LoopDeletion

…

LoopRotate

…

LoopSimplify

…

LoopStrengthReduce

…

LoopUnroll

…

LoopUnswitch

…

LowerAtomic

…

LowerInvoke

…

LowerSetJmp

…

LowerSwitch

…

Mem2Reg

…

MemCpyOpt

fix a bozo bug I introduced in r119930, causing a miscompile of

2010-12-01 01:24:55 +00:00

MergeFunc

…

PartialSpecialize

…

PruneEH

…

Reassociate

…

ScalarRepl

Treat a call of function pointer like a load of the pointer when considering

2010-11-24 22:04:20 +00:00

SCCP

…

SimplifyCFG

Teach SimplifyCFG to turn

2010-12-05 18:29:03 +00:00

SimplifyLibCalls

Add a puts optimization that converts puts() to putchar('\n').

2010-11-30 06:19:18 +00:00

Sink

…

SRETPromotion

…

StripSymbols

…

TailCallElim

…

TailDup

…