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[InstCombine] Fold shift of boolean zext to logic sequence (#180596 )

Alive2 proofs:
- `eq` case: 
  https://alive2.llvm.org/ce/z/09hPk-
- `ne` case:
  https://alive2.llvm.org/ce/z/zrof4X

Resolves llvm/llvm-project#180492

2026-02-26 14:29:15 +01:00

CMakeLists.txt

…

InstCombineAddSub.cpp

[InstCombine] Preserve fdiv metadata on fneg folds (#179157 )

2026-02-03 08:27:18 +08:00

InstCombineAndOrXor.cpp

AMDGPU: Strip sign bit operations on llvm.amdgcn.trig.preop uses (#179712 )

2026-02-19 18:44:33 +01:00

InstCombineAtomicRMW.cpp

[NFC][InstCombine] Fix namespace usage in InstCombine (#161902 )

2025-10-04 05:28:24 -07:00

InstCombineCalls.cpp

[InstCombine] Fold min/max of two subtracts with common RHS (#183240 )

2026-02-26 01:21:28 +08:00

InstCombineCasts.cpp

InstCombine: Fold bitcast of vector with constant to scalar (#179042 )

2026-02-19 21:35:31 +01:00

InstCombineCompares.cpp

[InstCombine] Fold shift of boolean zext to logic sequence (#180596 )

2026-02-26 14:29:15 +01:00

InstCombineInternal.h

[InstCombine] Optimise the expression (C && A) || (!C && B) with FoldOrOfLogicalAnds (#178438 )

2026-02-16 01:08:30 +05:30

InstCombineLoadStoreAlloca.cpp

[InstCombine] Replace getAllocatedType() with getAllocationSize() (#177435 )

2026-01-26 22:31:29 -05:00

InstCombineMulDivRem.cpp

InstCombine: Use SimplifyDemandedFPClass on fmul (#177490 )

2026-02-10 09:49:31 +00:00

InstCombineNegator.cpp

[InstCombine] Optimize sub(sext(add(x,y)),sext(add(x,z))). (#144174 )

2025-06-19 10:13:58 -07:00

InstCombinePHI.cpp

[InstCombine] Avoid invalid bitcast across address spaces in foldIntegerTypedPHI (#181064 )

2026-02-15 15:35:43 -08:00

InstCombineSelect.cpp

InstCombine: Fold absorbing fmul of compared 0 into select (#172381 )

2026-02-21 18:42:09 +00:00

InstCombineShifts.cpp

[InstCombine] Fix crash on large integers in visitShl (#176723 )

2026-01-19 12:07:03 +01:00

InstCombineSimplifyDemanded.cpp

InstCombine: Implement SimplifyDemandedFPClass for ldexp (#180703 )

2026-02-19 10:24:46 +00:00

InstCombineVectorOps.cpp

[InstCombine] Limit canonicalization of extractelement(cast) to constant index or same basic block (#166227 )

2026-01-08 22:43:13 +01:00

InstructionCombining.cpp

[InstCombine] Only ignore first zero index during GEP canonicalization (#180764 )

2026-02-23 08:55:00 +00:00