diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp index 6091dd3..9fdc46f 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -3893,12 +3893,8 @@ Instruction *InstCombinerImpl::foldICmpInstWithConstantNotInt(ICmpInst &I) { Constant::getNullValue(LHSI->getOperand(0)->getType())); break; case Instruction::PHI: - // Only fold icmp into the PHI if the phi and icmp are in the same - // block. If in the same block, we're encouraging jump threading. If - // not, we are just pessimizing the code by making an i1 phi. - if (LHSI->getParent() == I.getParent()) - if (Instruction *NV = foldOpIntoPhi(I, cast<PHINode>(LHSI))) - return NV; + if (Instruction *NV = foldOpIntoPhi(I, cast<PHINode>(LHSI))) + return NV; break; case Instruction::IntToPtr: // icmp pred inttoptr(X), null -> icmp pred X, 0 @@ -7576,12 +7572,8 @@ Instruction *InstCombinerImpl::visitFCmpInst(FCmpInst &I) { if (match(Op0, m_Instruction(LHSI)) && match(Op1, m_Constant(RHSC))) { switch (LHSI->getOpcode()) { case Instruction::PHI: - // Only fold fcmp into the PHI if the phi and fcmp are in the same - // block. If in the same block, we're encouraging jump threading. If - // not, we are just pessimizing the code by making an i1 phi. - if (LHSI->getParent() == I.getParent()) - if (Instruction *NV = foldOpIntoPhi(I, cast<PHINode>(LHSI))) - return NV; + if (Instruction *NV = foldOpIntoPhi(I, cast<PHINode>(LHSI))) + return NV; break; case Instruction::SIToFP: case Instruction::UIToFP: |