diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp index 38d6f299847..7773c3d234e 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -3630,6 +3630,33 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) { Intrinsic::ID NewIID = CmpInst::isFPPredicate(SrcPred) ? Intrinsic::amdgcn_fcmp : Intrinsic::amdgcn_icmp; + Type *Ty = SrcLHS->getType(); + if (auto *CmpType = dyn_cast<IntegerType>(Ty)) { + // Promote to next legal integer type. + unsigned Width = CmpType->getBitWidth(); + unsigned NewWidth = Width; + if (Width <= 16) + NewWidth = 16; + else if (Width <= 32) + NewWidth = 32; + else if (Width <= 64) + NewWidth = 64; + else if (Width > 64) + break; // Can't handle this. + + if (Width != NewWidth) { + IntegerType *CmpTy = Builder.getIntNTy(NewWidth); + if (CmpInst::isSigned(SrcPred)) { + SrcLHS = Builder.CreateSExt(SrcLHS, CmpTy); + SrcRHS = Builder.CreateSExt(SrcRHS, CmpTy); + } else { + SrcLHS = Builder.CreateZExt(SrcLHS, CmpTy); + SrcRHS = Builder.CreateZExt(SrcRHS, CmpTy); + } + } + } else if (!Ty->isFloatTy() && !Ty->isDoubleTy() && !Ty->isHalfTy()) + break; + Value *NewF = Intrinsic::getDeclaration(II->getModule(), NewIID, SrcLHS->getType()); Value *Args[] = { SrcLHS, SrcRHS, |
