David Majnemer ec7ee07036 InstSimplify: Simplify (X - (0 - Y)) if the second sub is NUW ... If the NUW bit is set for 0 - Y, we know that all values for Y other than 0 would produce a poison value. This allows us to replace (0 - Y) with 0 in the expression (X - (0 - Y)) which will ultimately leave us with X. This partially fixes PR20189. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214384 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-31 04:49:18 +00:00
..
2010-12-20-Boolean.ll
2011-01-14-Thread.ll
2011-02-01-Vector.ll
2011-09-05-InsertExtractValue.ll
2011-10-27-BinOpCrash.ll
2011-11-23-MaskedBitsCrash.ll
2013-04-19-ConstantFoldingCrash.ll
AndOrXor.ll	InstSimplify: Simplify (X - (0 - Y)) if the second sub is NUW	2014-07-31 04:49:18 +00:00
apint-or.ll
ashr-nop.ll	Move ashr optimization from InstCombineShift to InstSimplify.	2014-07-17 06:28:15 +00:00
assume.ll	Add @llvm.assume, lowering, and some basic properties	2014-07-25 21:13:35 +00:00
call-callconv.ll
call.ll
compare.ll	Add a dereferenceable attribute	2014-07-18 15:51:28 +00:00
dead-code-removal.ll
exact-nsw-nuw.ll
fast-math.ll
fdiv.ll
floating-point-arithmetic.ll
maxmin.ll
past-the-end.ll
phi.ll
ptr_diff.ll
reassociate.ll
rem.ll
undef.ll
vector_gep.ll