David Majnemer 9e1f653e2f LICM: Don't crash when an instruction is used by an unreachable BB ... Summary: BBs might contain non-LCSSA'd values after the LCSSA pass is run if they are unreachable from the entry block. Normally, the users of the instruction would be PHIs but the unreachable BBs have normal users; rewrite their uses to be undef values. An alternative fix could involve fixing this at LCSSA but that would require this invariant to hold after subsequent transforms. If a BB created an unreachable block, they would be in violation of this. This fixes PR19798. Differential Revision: http://reviews.llvm.org/D5146 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216911 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-02 16:22:00 +00:00
..
ADCE
AddDiscriminators	Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.	2014-08-21 22:45:21 +00:00
ArgumentPromotion	Don't promote byval pointer arguments when padding matters	2014-08-28 22:42:00 +00:00
AtomicExpand/ARM	Rename AtomicExpandLoadLinked into AtomicExpand	2014-08-21 21:50:01 +00:00
BBVectorize
BranchFolding
CodeExtractor
CodeGenPrepare	CodeGenPrep: fall back to MVT::Other if instruction's type isn't an EVT.	2014-07-29 10:20:22 +00:00
ConstantHoisting
ConstantMerge
ConstProp	Fix a bug around truncating vector in const prop.	2014-08-21 02:12:35 +00:00
CorrelatedValuePropagation
DeadArgElim	musttail: Don't eliminate varargs packs if there is a forwarding call	2014-08-26 00:59:51 +00:00
DeadStoreElimination	Relax the constraint more in MemoryDependencyAnalysis.cpp	2014-08-29 20:32:58 +00:00
DebugIR
EarlyCSE
FunctionAttrs	[optnone] Make the optnone attribute effective at suppressing function	2014-08-13 10:49:33 +00:00
GCOVProfiling
GlobalDCE	Remove dangling initializers in GlobalDCE	2014-08-25 17:51:14 +00:00
GlobalOpt	GlobalOpt: Optimize in the face of insertvalue/extractvalue	2014-08-08 05:50:43 +00:00
GVN	Relax the constraint more in MemoryDependencyAnalysis.cpp	2014-08-29 20:32:58 +00:00
IndVarSimplify	[INDVARS] Extend using of widening of induction variables for the cases of "sub nsw" and "mul nsw" instructions.	2014-08-21 08:25:45 +00:00
Inline	Feed AA to the inliner and use AA->getModRefBehavior in AddAliasScopeMetadata	2014-09-01 09:01:39 +00:00
InstCombine	Revert "Revert two GEP-related InstCombine commits"	2014-09-01 21:10:02 +00:00
InstMerge	MergedLoadStoreMotion pass	2014-07-18 19:13:09 +00:00
InstSimplify	InstSimplify: Move a transform from InstCombine to InstSimplify	2014-08-28 03:34:28 +00:00
Internalize	Use "weak alias" instead of "alias weak"	2014-07-30 22:51:54 +00:00
IPConstantProp
JumpThreading	In LVI(Lazy Value Info), originally value on a BB can only be caculated once,	2014-08-11 05:02:04 +00:00
LCSSA
LICM	LICM: Don't crash when an instruction is used by an unreachable BB	2014-09-02 16:22:00 +00:00
LoadCombine
LoopDeletion
LoopIdiom	R600: Implement TTI:getPopcntSupport	2014-07-18 06:07:13 +00:00
LoopReroll
LoopRotate
LoopSimplify
LoopStrengthReduce
LoopUnroll	After unrolling a loop with llvm.loop.unroll.count metadata (unroll factor	2014-07-24 22:36:40 +00:00
LoopUnswitch
LoopVectorize	Add a convenience method to copy wrapping, exact, and fast-math flags (NFC).	2014-09-01 18:44:57 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch	Added test for commit r212802 that was missing	2014-07-11 10:36:00 +00:00
Mem2Reg
MemCpyOpt	Fix a really bad miscompile introduced in r216865 - the else-if logic	2014-09-01 10:09:18 +00:00
MergeFunc	MergeFunc patch from Björn Steinbrink.	2014-07-15 10:46:51 +00:00
MetaRenamer	Use "weak alias" instead of "alias weak"	2014-07-30 22:51:54 +00:00
ObjCARC
PartiallyInlineLibCalls	PartiallyInlineLibCalls: Check sqrt result type before transforming it.	2014-08-01 23:21:21 +00:00
PhaseOrdering
PruneEH
Reassociate	Reassociate x + -0.1234 * y into x - 0.1234 * y	2014-08-21 10:45:30 +00:00
Reg2Mem
SampleProfile	Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.	2014-08-21 22:45:21 +00:00
Scalarizer
ScalarRepl
SCCP
SeparateConstOffsetFromGEP/NVPTX	Partially revert r210444 due to performance regression	2014-07-16 23:25:00 +00:00
SimplifyCFG	Make fabs safe to speculatively execute	2014-08-29 16:01:17 +00:00
Sink
SLPVectorizer	Fix: SLPVectorizer tried to move an instruction which was replaced by a vector instruction.	2014-08-28 07:04:02 +00:00
SROA	SROA: Don't insert instructions before a PHI	2014-09-01 21:20:14 +00:00
StripSymbols
StructurizeCFG
TailCallElim	We may visit a call that uses an alloca multiple times in callUsesLocalStack, sometimes with IsNocapture true and sometimes with IsNocapture false. We accidentally skipped work we needed to do in the IsNocapture=false case if we were called with IsNocapture=true the first time. Fixes PR20405!	2014-07-23 06:24:49 +00:00
TailDup
Util	utils: Fix segfault in flattencfg	2014-08-13 20:31:53 +00:00