diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp b/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp index 362d2d3c79d..32883efbdab 100644 --- a/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp +++ b/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp @@ -915,16 +915,19 @@ isFoldableLoad(const LoadInst *Ld, const Instruction *&FoldedValue) { switch (UserI->getOpcode()) { case Instruction::Add: // SE: 16->32, 16/32->64, z14:16->64. ZE: 32->64 case Instruction::Sub: + case Instruction::ICmp: if (LoadedBits == 32 && ZExtBits == 64) return true; LLVM_FALLTHROUGH; case Instruction::Mul: // SE: 16->32, 32->64, z14:16->64 - if (LoadedBits == 16 && - (SExtBits == 32 || - (SExtBits == 64 && ST->hasMiscellaneousExtensions2()))) - return true; - if (LoadOrTruncBits == 16) - return true; + if (UserI->getOpcode() != Instruction::ICmp) { + if (LoadedBits == 16 && + (SExtBits == 32 || + (SExtBits == 64 && ST->hasMiscellaneousExtensions2()))) + return true; + if (LoadOrTruncBits == 16) + return true; + } LLVM_FALLTHROUGH; case Instruction::SDiv:// SE: 32->64 if (LoadedBits == 32 && SExtBits == 64) @@ -934,7 +937,6 @@ isFoldableLoad(const LoadInst *Ld, const Instruction *&FoldedValue) { case Instruction::And: case Instruction::Or: case Instruction::Xor: - case Instruction::ICmp: // This also makes sense for float operations, but disabled for now due // to regressions. // case Instruction::FCmp: |
