Chandler Carruth 9b3b286247 Fix PR16687 where we were incorrectly promoting an alloca that had ... pending speculation for a phi node. The problem here is that we were using growth of the specluation set as an indicator of whether speculation would occur, and if the phi node is already in the set we don't see it grow. This is a symptom of the fact that this signal is a total hack. Unfortunately, I couldn't really come up with a non-hacky way of signaling that promotion remains valid *after* speculation occurs, such that we only speculate when all else looks good for promotion. In the end, I went with at least a much more explicit approach of doing the work of queuing inside the phi and select processing and setting a preposterously named flag to convey that we're in the special state of requiring speculating before promotion. Thanks to Richard Trieu and Nick Lewycky for the excellent work reducing a testcase for this from a pretty giant, nasty assert in a big application. =] The testcase was excellent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187029 91177308-0d34-0410-b5e6-96231b3b80d8		2013-07-24 09:47:28 +00:00
..
ADCE.cpp	Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.	2013-07-04 01:31:24 +00:00
BasicBlockPlacement.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CMakeLists.txt	Remove the simplify-libcalls pass (finally)	2013-06-20 19:48:07 +00:00
CodeGenPrepare.cpp	Remove trailing whitespace	2013-07-15 17:55:02 +00:00
ConstantProp.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CorrelatedValuePropagation.cpp	CVP: If we have a PHI with an incoming select, try to skip the select.	2013-02-24 15:34:43 +00:00
DCE.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
DeadStoreElimination.cpp	Change GetPointerBaseWithConstantOffset's DataLayout argument from a	2013-01-31 02:00:45 +00:00
EarlyCSE.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
GlobalMerge.cpp	Change tabs to spaces.	2013-07-22 21:11:30 +00:00
GVN.cpp	Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.	2013-07-04 01:31:24 +00:00
IndVarSimplify.cpp	LFTR improvement to avoid truncation.	2013-07-12 22:08:48 +00:00
JumpThreading.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LICM.cpp	LICM: Hoist insertvalue/extractvalue out of loops.	2013-01-09 18:12:03 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
LoopDeletion.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
LoopIdiomRecognize.cpp	Fix spelling and grammar	2013-07-22 18:59:58 +00:00
LoopInstSimplify.cpp	Remove #includes from the commonly used LoopInfo.h.	2013-02-09 01:04:28 +00:00
LoopRotation.cpp	Rotate multi-exit loops even if the latch was simplified.	2013-05-06 17:58:18 +00:00
LoopStrengthReduce.cpp	LSR: Fix the parameters used to compute the scaling factor cost.	2013-06-19 19:59:41 +00:00
LoopUnrollPass.cpp	Switch CodeMetrics itself over to use TTI to determine if an instruction	2013-01-21 13:04:33 +00:00
LoopUnswitch.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
LowerAtomic.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
Makefile
MemCpyOptimizer.cpp	Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.	2013-07-03 15:07:05 +00:00
Reassociate.cpp	Use switch instead of if. No functionality change.	2013-07-22 23:38:16 +00:00
Reg2Mem.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
Scalar.cpp	Remove the simplify-libcalls pass (finally)	2013-06-20 19:48:07 +00:00
ScalarReplAggregates.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
SCCP.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
SimplifyCFGPass.cpp	Make SimplifyCFG simply depend upon TargetTransformInfo and pass it	2013-01-07 03:53:25 +00:00
Sink.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SROA.cpp	Fix PR16687 where we were incorrectly promoting an alloca that had	2013-07-24 09:47:28 +00:00
StructurizeCFG.cpp	Add 'const' qualifiers to static const char* variables.	2013-07-16 01:17:10 +00:00
TailRecursionElimination.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00