diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstructionCombining.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp index b3db47bbbf9..b1828d0fe32 100644 --- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -788,6 +788,16 @@ Value *InstCombiner::SimplifySelectsFeedingBinaryOp(BinaryOperator &I, else if (True && !False) False = Builder.CreateBinOp(Opcode, C, F); } + } else if (LHSIsSelect && LHS->hasOneUse()) { + // (A ? B : C) op Y -> A ? (B op Y) : (C op Y) + Cond = A; + True = SimplifyBinOp(Opcode, B, RHS, FMF, Q); + False = SimplifyBinOp(Opcode, C, RHS, FMF, Q); + } else if (RHSIsSelect && RHS->hasOneUse()) { + // X op (D ? E : F) -> D ? (X op E) : (X op F) + Cond = D; + True = SimplifyBinOp(Opcode, LHS, E, FMF, Q); + False = SimplifyBinOp(Opcode, LHS, F, FMF, Q); } if (!True || !False) |
