David Majnemer 12baade498 [InstCombine] Don't eagerly propagate nsw for A*B+A*C => A*(B+C) ... InstCombine transforms A *nsw B +nsw A *nsw C to A *nsw (B + C). This is incorrect -- e.g. if A = -1, B = 1, C = INT_SMAX. Then nothing in the LHS overflows, but the multiplication in RHS overflows. We need to first make sure that we won't multiple by INT_SMAX + 1. Test case `add_of_mul` contributed by Sanjoy Das. This fixes PR23635. Differential Revision: http://reviews.llvm.org/D9629 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238066 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-22 23:02:11 +00:00
..
CMakeLists.txt	Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.	2015-02-11 03:28:02 +00:00
InstCombineAddSub.cpp	[ValueTracking] refactor: extract method haveNoCommonBitsSet	2015-05-14 23:53:19 +00:00
InstCombineAndOrXor.cpp	[ConstantRange] Split makeICmpRegion in two.	2015-03-18 00:41:24 +00:00
InstCombineCalls.cpp	[InstSimplify] Handle some overflow intrinsics in InstSimplify	2015-05-22 03:56:46 +00:00
InstCombineCasts.cpp	Reapply r237539 with a fix for the Chromium build.	2015-05-20 18:41:25 +00:00
InstCombineCompares.cpp	[InstSimplify] Handle some overflow intrinsics in InstSimplify	2015-05-22 03:56:46 +00:00
InstCombineInternal.h	Rip min/max pattern matching out of InstCombine and into	2015-05-11 14:42:20 +00:00
InstCombineLoadStoreAlloca.cpp	Convert PHI getIncomingValue() to foreach over incoming_values(). NFC.	2015-05-12 20:05:31 +00:00
InstCombineMulDivRem.cpp	[InstCombine] (mul nsw 1, INT_MIN) != (shl nsw 1, 31)	2015-04-18 04:41:30 +00:00
InstCombinePHI.cpp	Convert PHI getIncomingValue() to foreach over incoming_values(). NFC.	2015-05-12 20:05:31 +00:00
InstCombineSelect.cpp	Reapply r237539 with a fix for the Chromium build.	2015-05-20 18:41:25 +00:00
InstCombineShifts.cpp	Convert PHI getIncomingValue() to foreach over incoming_values(). NFC.	2015-05-12 20:05:31 +00:00
InstCombineSimplifyDemanded.cpp	Reapply r237539 with a fix for the Chromium build.	2015-05-20 18:41:25 +00:00
InstCombineVectorOps.cpp	[InstCombine] Use DataLayout to determine vector element width	2015-04-03 20:18:40 +00:00
InstructionCombining.cpp	[InstCombine] Don't eagerly propagate nsw for A*B+A*C => A*(B+C)	2015-05-22 23:02:11 +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