Roman Lebedev fb5af8b9b9 [InstCombine] Fold 'icmp eq/ne (?trunc (lshr/ashr %x, bitwidth(x)-1)), 0' -> 'icmp sge/slt %x, 0' ...

We do indeed already get it right in some cases, but only transitively,
with one-use restrictions. Since we only need to produce a single
comparison, it makes sense to match the pattern directly:
  https://rise4fun.com/Alive/kPg

llvm-svn: 373802

2019-10-04 22:16:22 +00:00

..

CMakeLists.txt

[InstCombine] Optimize atomicrmw <op>, 0 into load atomic when possible

2019-02-07 21:27:23 +00:00

InstCombineAddSub.cpp

[InstCombine] Deal with -(trunc(X >>u 63)) -> trunc(X >>s 63)

2019-10-01 17:50:20 +00:00

InstCombineAndOrXor.cpp

[InstCombine] foldUnsignedUnderflowCheck(): one last pattern with 'sub' (PR43251)

2019-09-25 22:59:59 +00:00

InstCombineAtomicRMW.cpp

[Alignment][NFC] Remove StoreInst::setAlignment(unsigned)

2019-10-03 13:17:21 +00:00

InstCombineCalls.cpp

[Alignment][NFC] Remove StoreInst::setAlignment(unsigned)

2019-10-03 13:17:21 +00:00

InstCombineCasts.cpp

[Alignment][NFC] Remove AllocaInst::setAlignment(unsigned)

2019-09-30 13:34:44 +00:00

InstCombineCompares.cpp

[InstCombine] Fold 'icmp eq/ne (?trunc (lshr/ashr %x, bitwidth(x)-1)), 0' -> 'icmp sge/slt %x, 0'

2019-10-04 22:16:22 +00:00

InstCombineInternal.h

[InstCombine] Bypass high bit extract before variable sign-extension (PR43523)

2019-10-02 23:02:12 +00:00

InstCombineLoadStoreAlloca.cpp

[Alignment][NFC] Remove StoreInst::setAlignment(unsigned)

2019-10-03 13:17:21 +00:00

InstCombineMulDivRem.cpp

[InstCombine] fold negate disguised as select+mul

2019-09-30 17:02:26 +00:00

InstCombinePHI.cpp

[InstCombine] SliceUpIllegalIntegerPHI - bail on out of range shifts

2019-06-24 13:13:36 +00:00

InstCombineSelect.cpp

[InstCombine] allow icmp+binop folds before min/max bailout (PR43310)

2019-09-22 14:31:53 +00:00

InstCombineShifts.cpp

[InstCombine] Right-shift shift amount reassociation with truncation (PR43564, PR42391)

2019-10-04 22:16:11 +00:00

InstCombineSimplifyDemanded.cpp

[InstCombine][AMDGPU] Simplify tbuffer loads

2019-08-30 14:20:04 +00:00

InstCombineTables.td

InstCombine/AMDGPU: Add dimension-aware image intrinsics to SimplifyDemanded

2018-06-21 13:37:31 +00:00

InstCombineVectorOps.cpp

[InstCombine] fold extract+insert into identity shuffle

2019-09-08 19:03:01 +00:00

InstructionCombining.cpp

[InstCombine] Use m_Zero instead of isNullValue() when checking if a GEP index is all zeroes to prevent an infinite loop.

2019-09-26 17:20:50 +00:00

LLVMBuild.txt

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00