Chandler Carruth 6a67a3f3ec [LPM] Fix PR18642, a pretty nasty bug in IndVars that "never mattered" ... because of the inside-out run of LoopSimplify in the LoopPassManager and the fact that LoopSimplify couldn't be "preserved" across two independent LoopPassManagers. Anyways, in that case, IndVars wasn't correctly preserving an LCSSA PHI node because it thought it was rewriting (via SCEV) the incoming value to a loop invariant value. While it may well be invariant for the current loop, it may be rewritten in terms of an enclosing loop's values. This in and of itself is fine, as the LCSSA PHI node in the enclosing loop for the inner loop value we're rewriting will have its own LCSSA PHI node if used outside of the enclosing loop. With me so far? Well, the current loop and the enclosing loop may share an exiting block and exit block, and when they do they also share LCSSA PHI nodes. In this case, its not valid to RAUW through the LCSSA PHI node. Expected crazy test included. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200372 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-29 04:40:19 +00:00
..
ADCE
ArgumentPromotion	Update optimization passes to handle inalloca arguments	2014-01-28 02:38:36 +00:00
BBVectorize	Prevent LoopVectorizer and SLPVectorizer running if the target has no vector registers.	2013-09-18 12:43:35 +00:00
BranchFolding
CodeExtractor
CodeGenPrepare
ConstantHoisting/X86	ConstantHoisting: We can't insert instructions directly in front of a PHI node.	2014-01-27 13:11:43 +00:00
ConstantMerge	Corruptly merge constants with explicit and implicit alignments.	2013-11-12 20:21:43 +00:00
ConstProp	Teach ConstantFolding about pointer address spaces	2013-08-20 21:20:04 +00:00
CorrelatedValuePropagation
DeadArgElim	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
DeadStoreElimination	Update optimization passes to handle inalloca arguments	2014-01-28 02:38:36 +00:00
DebugIR	Use right pointer type in DebugIR	2013-09-27 22:26:25 +00:00
EarlyCSE
FunctionAttrs	Update optimization passes to handle inalloca arguments	2014-01-28 02:38:36 +00:00
GCOVProfiling	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
GlobalDCE
GlobalOpt	Delete unread globals through addrspacecast	2014-01-02 20:01:43 +00:00
GVN	Fix broken CHECK lines.	2014-01-11 21:06:00 +00:00
IndVarSimplify	[LPM] Fix PR18642, a pretty nasty bug in IndVars that "never mattered"	2014-01-29 04:40:19 +00:00
Inline	Fix known typos	2014-01-24 17:20:08 +00:00
InstCombine	Update optimization passes to handle inalloca arguments	2014-01-28 02:38:36 +00:00
InstSimplify	InstSimplify: Make shift, select and GEP simplifications vector-aware.	2014-01-24 17:09:53 +00:00
Internalize	Correct word hyphenations	2013-12-05 05:44:44 +00:00
IPConstantProp
JumpThreading	Don't eliminate a partially redundant load if it's in a landing pad.	2013-10-21 04:09:17 +00:00
LCSSA
LICM	[LPM] Make LCSSA a utility with a FunctionPass that applies it to all	2014-01-25 04:07:24 +00:00
LoopDeletion
LoopIdiom	Debug Info: update testing cases to specify the debug info version number.	2013-11-23 01:16:29 +00:00
LoopReroll	Fix loop rerolling pass failure with non-consant loop lower bound	2014-01-03 17:20:01 +00:00
LoopRotate	Rename test with misspelt filename	2013-12-02 04:31:36 +00:00
LoopSimplify	[LPM] Make LCSSA a utility with a FunctionPass that applies it to all	2014-01-25 04:07:24 +00:00
LoopStrengthReduce	Fix broken CHECK lines.	2014-01-11 21:06:00 +00:00
LoopUnroll	Implement TTI getUnrollingPreferences for PowerPC	2013-09-11 21:20:40 +00:00
LoopUnswitch
LoopVectorize	[vectorizer] Completely disable the block frequency guidance of the loop	2014-01-28 09:10:41 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch	Revert patches to add case-range support for PR1255.	2013-09-09 19:14:35 +00:00
Mem2Reg	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
MemCpyOpt	Handle an addrspacecast case in memcpyopt	2014-01-22 21:53:19 +00:00
MergeFunc	PR17925 bugfix.	2013-11-26 16:11:03 +00:00
MetaRenamer
ObjCARC	Fix known typos	2014-01-24 17:20:08 +00:00
PhaseOrdering
PruneEH
Reassociate
Reg2Mem
SampleProfile	llvm/test/Transforms/SampleProfile/syntax.ll: Eliminate locale-sensitive message check.	2014-01-11 09:23:52 +00:00
Scalarizer	Fix Scalarizer insertion point when replacing PHIs with insertelements	2013-12-23 14:51:56 +00:00
ScalarRepl	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
SCCP
SimplifyCFG	Fix pr14893.	2014-01-28 16:56:46 +00:00
Sink
SLPVectorizer	Fix broken CHECK lines.	2014-01-11 21:06:00 +00:00
SROA	Fix a really nasty SROA bug with how we handled out-of-bounds memcpy	2014-01-19 12:16:54 +00:00
StripSymbols	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
StructurizeCFG	StructurizeCFG: Fix verification failure with some loops.	2013-11-22 19:24:39 +00:00
TailCallElim
TailDup