Andrea Di Biagio e88e150aaa [InstCombine] Teach SimplifyDemandedVectorElts how to handle ConstantVector select masks with ConstantExpr elements (PR24922) ... If the mask of a select instruction is a ConstantVector, method SimplifyDemandedVectorElts iterates over the mask elements to identify which values are selected from the select inputs. Before this patch, method SimplifyDemandedVectorElts always used method Constant::isNullValue() to check if a value in the mask was zero. Unfortunately that method always returns false when called on a ConstantExpr. This patch fixes the problem in SimplifyDemandedVectorElts by adding an explicit check for ConstantExpr values. Now, if a value in the mask is a ConstantExpr, we avoid calling isNullValue() on it. Fixes PR24922. Differential Revision: http://reviews.llvm.org/D13219 llvm-svn: 249390		2015-10-06 10:34:53 +00:00
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CMakeLists.txt	Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.	2015-02-11 03:28:02 +00:00
InstCombineAddSub.cpp	don't repeat function names in comments; NFC	2015-09-09 15:24:36 +00:00
InstCombineAndOrXor.cpp	[InstCombine] match De Morgan's Law hidden by zext ops (PR22723)	2015-09-25 23:21:38 +00:00
InstCombineCalls.cpp	[InstCombine] Remove trivially empty lifetime start/end ranges.	2015-10-01 14:54:31 +00:00
InstCombineCasts.cpp	There is a trunc(lshr (zext A), Cst) optimization in InstCombineCasts that	2015-09-10 11:31:20 +00:00
InstCombineCompares.cpp	[InstCombine] FoldICmpCstShrCst failed for ashr when comparing against -1	2015-09-19 00:48:31 +00:00
InstCombineInternal.h	[InstCombine] fold zexts and constants into a phi (PR24766)	2015-09-27 20:34:31 +00:00
InstCombineLoadStoreAlloca.cpp	inariant.group handling in GVN	2015-10-02 22:12:22 +00:00
InstCombineMulDivRem.cpp	don't repeat function names in comments; NFC	2015-09-09 15:24:36 +00:00
InstCombinePHI.cpp	[InstCombine] fold zexts and constants into a phi (PR24766)	2015-09-27 20:34:31 +00:00
InstCombineSelect.cpp	don't repeat function names in comments; NFC	2015-09-09 15:24:36 +00:00
InstCombineShifts.cpp	Convert PHI getIncomingValue() to foreach over incoming_values(). NFC.	2015-05-12 20:05:31 +00:00
InstCombineSimplifyDemanded.cpp	[InstCombine] Teach SimplifyDemandedVectorElts how to handle ConstantVector select masks with ConstantExpr elements (PR24922)	2015-10-06 10:34:53 +00:00
InstCombineVectorOps.cpp	don't repeat function names in comments; NFC	2015-09-09 15:24:36 +00:00
InstructionCombining.cpp	add ShouldChangeType() variant that takes bitwidths	2015-09-21 16:09:37 +00:00
LLVMBuild.txt	Update libdeps since TLI was moved from Target to Analysis in r226078.	2015-01-15 05:21:00 +00:00
Makefile