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[InstCombine] Fold icmp eq/ne (X *nw Z), (Y *nw Z) -> icmp eq/ne Z, 0 when X != Y (#110413 )

Alive2: https://alive2.llvm.org/ce/z/9oDP6K
I found this pattern in
04e75858d7/casadi/core/repmat.cpp (L70-L78).

2024-09-30 10:21:20 +08:00

CMakeLists.txt

…

InstCombineAddSub.cpp

[InstCombine] Simplify (add/sub (sub/add) (sub/add)) irrelivant of use-count

2024-08-27 11:43:17 -07:00

InstCombineAndOrXor.cpp

[CmpInstAnalysis] Return decomposed bit test as struct (NFC) (#109819 )

2024-09-25 10:14:15 +02:00

InstCombineAtomicRMW.cpp

…

InstCombineCalls.cpp

[LLVM] Use {} instead of std::nullopt to initialize empty ArrayRef (#109133 )

2024-09-19 16:16:38 +01:00

InstCombineCasts.cpp

[InstCombine] foldVecExtTruncToExtElt - extend to handle trunc(lshr(extractelement(x,c1),c2)) -> extractelement(bitcast(x),c3) patterns. (#109689 )

2024-09-28 17:52:10 +01:00

InstCombineCompares.cpp

[InstCombine] Fold icmp eq/ne (X *nw Z), (Y *nw Z) -> icmp eq/ne Z, 0 when X != Y (#110413 )

2024-09-30 10:21:20 +08:00

InstCombineInternal.h

[InstCombine] Remove dead phi web (#108876 )

2024-09-18 10:04:49 +02:00

InstCombineLoadStoreAlloca.cpp

[InstCombine] Use llvm::set_is_subset (NFC) (#102778 )

2024-08-10 22:46:03 -07:00

InstCombineMulDivRem.cpp

[InstCombine] Check for undef first before freeze (#96769 )

2024-07-13 18:39:41 +02:00

InstCombineNegator.cpp

[InstCombine] Avoid infinite loop when negating phi nodes (#104581 )

2024-08-17 16:48:29 +08:00

InstCombinePHI.cpp

[InstCombine] Remove dead phi web (#108876 )

2024-09-18 10:04:49 +02:00

InstCombineSelect.cpp

[CmpInstAnalysis] Return decomposed bit test as struct (NFC) (#109819 )

2024-09-25 10:14:15 +02:00

InstCombineShifts.cpp

[InstCombine] Fold [l|a]shr iN (X-1)&~X, N-1 -> [z|s]ext(X==0) (#107259 )

2024-09-06 21:37:50 +08:00

InstCombineSimplifyDemanded.cpp

InstCombine/Demanded: simplify srem case (NFC) (#110260 )

2024-09-27 19:12:35 +01:00

InstCombineVectorOps.cpp

[ValueTracking] Use isSafeToSpeculativelyExecuteWithVariableReplaced() in more places (#109149 )

2024-09-19 09:38:20 +02:00

InstructionCombining.cpp

[InstCombine] Relax the conditons of fold of ucmp/scmp into phi by allowing the phi node to use the result of ucmp/scmp more than once (#109593 )

2024-09-23 15:39:11 +01:00