Chris Lattner db6c348f31 Fix PR8728, a miscompilation I recently introduced. When optimizing ... memcpy's like: memcpy(A, B) memcpy(A, C) we cannot delete the first memcpy as dead if A and C might be aliases. If so, we actually get: memcpy(A, B) memcpy(A, A) which is not correct to transform into: memcpy(A, A) This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks Jakub! llvm-svn: 120974		2010-12-06 01:48:06 +00:00
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ADCE
ArgumentPromotion
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare	Add a test for CodeGenPrepare's ability to look through PHI nodes when performing	2010-11-19 22:34:53 +00:00
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
GVN	Completely rework the datastructure GVN uses to represent the value number to leader mapping. Previously,	2010-11-18 18:32:40 +00:00
IndVarSimplify
Inline
InstCombine	remove a use of llvm-dis	2010-11-30 02:04:15 +00:00
Internalize
IPConstantProp
JumpThreading
LCSSA
LICM
LoopDeletion
LoopRotate
LoopSimplify
LoopStrengthReduce
LoopUnroll
LoopUnswitch	Factor code for testing whether replacing one value with another	2010-11-18 19:59:41 +00:00
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