Philip Reames 36a87ca364 [InstCombine] Factor out unreachable inst idiom creation [NFC] ...

In InstCombine, we use an idiom of "store i1 true, i1 undef" to indicate we've found a path which we've proven unreachable.  We can't actually insert the unreachable instruction since that would require changing the CFG.  We leave that to simplifycfg later.

This just factors out that idiom creation so we don't duplicate the same mostly undocument idiom creation in multiple places.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358600 91177308-0d34-0410-b5e6-96231b3b80d8

2019-04-17 17:37:58 +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] prevent possible miscompile with negate+sdiv of vector op

2019-04-09 14:09:06 +00:00

InstCombineAndOrXor.cpp

[InstCombine] Don't transform ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2) if either zext or OP has another use.

2019-03-21 17:50:49 +00:00

InstCombineAtomicRMW.cpp

[InstCombine] Extend saturating idempotent atomicrmw transform to FP

2019-03-01 19:50:36 +00:00

InstCombineCalls.cpp

[InstCombine] Factor out unreachable inst idiom creation [NFC]

2019-04-17 17:37:58 +00:00

InstCombineCasts.cpp

Extra processing for BitCast + PHI in InstCombine

2019-02-09 01:44:28 +00:00

InstCombineCompares.cpp

[InstCombine] Remove redundant/bogus mul_with_overflow combines

2019-04-13 19:43:35 +00:00

InstCombineInternal.h

[InstCombine] Factor out unreachable inst idiom creation [NFC]

2019-04-17 17:37:58 +00:00

InstCombineLoadStoreAlloca.cpp

[opaque pointer types] Pass value type to GetElementPtr creation.

2019-02-01 20:44:47 +00:00

InstCombineMulDivRem.cpp

[InstCombine] canonicalize fdiv after fmul if reassociation is allowed

2019-04-15 13:23:38 +00:00

InstCombinePHI.cpp

[opaque pointer types] Pass value type to LoadInst creation.

2019-02-01 20:44:24 +00:00

InstCombineSelect.cpp

[InstCombine] Use uadd.sat and usub.sat for canonicalization

2019-03-27 17:56:15 +00:00

InstCombineShifts.cpp

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

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

InstCombineSimplifyDemanded.cpp

[InstCombine] Fix a nasty miscompile introduced w/masked.gather demanded elts

2019-04-12 18:26:56 +00:00

InstCombineTables.td

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

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

InstCombineVectorOps.cpp

[InstCombine] remove overzealous assert for shuffles (PR41419)

2019-04-08 13:28:29 +00:00

InstructionCombining.cpp

[InstCombine] Factor out unreachable inst idiom creation [NFC]

2019-04-17 17:37:58 +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