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	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-01-14-Thread.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-02-01-Vector.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-09-05-InsertExtractValue.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-10-27-BinOpCrash.ll
2011-11-23-MaskedBitsCrash.ll
2013-04-19-ConstantFoldingCrash.ll	ConstantFolding: ComputeMaskedBits wants the scalar size for vectors.	2013-04-19 16:56:24 +00:00
AndOrXor.ll	InstSimplify: Simplify (X - (0 - Y)) if the second sub is NUW	2014-07-31 04:49:18 +00:00
apint-or.ll	Move optimization of some cases of (A & C1)|(B & C2) from instcombine to instsimplify. Patch by Rahul Jain, plus some last minute changes by me -- you can blame me for any bugs.	2014-06-19 03:51:46 +00:00
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	[SimplifyLibCalls] Library call simplification doen't work if the call site	2013-02-08 18:00:14 +00:00
call.ll	Verify that we don't optimize null return checks to the nothrow_t version of operator new.	2013-09-24 18:37:49 +00:00
compare.ll	Add a dereferenceable attribute	2014-07-18 15:51:28 +00:00
dead-code-removal.ll	RecursivelyDeleteTriviallyDeadInstructions() could remove	2014-04-26 05:58:11 +00:00
exact-nsw-nuw.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
fast-math.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
fdiv.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
floating-point-arithmetic.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
maxmin.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
past-the-end.ll	Add a testcase for some past-the-end address subtleties.	2013-02-01 19:37:52 +00:00
phi.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
ptr_diff.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
reassociate.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
rem.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
undef.ll	InstSimplify: Make shift, select and GEP simplifications vector-aware.	2014-01-24 17:09:53 +00:00
vector_gep.ll	InstSimplify: Make shift, select and GEP simplifications vector-aware.	2014-01-24 17:09:53 +00:00