diff options
Diffstat (limited to 'llvm/lib/IR/AutoUpgrade.cpp')
| -rw-r--r-- | llvm/lib/IR/AutoUpgrade.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp index ff7588e7fcf..aff89775a5a 100644 --- a/llvm/lib/IR/AutoUpgrade.cpp +++ b/llvm/lib/IR/AutoUpgrade.cpp @@ -178,6 +178,10 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) { Name.startswith("x86.avx2.pbroadcast") || Name.startswith("x86.avx.vpermil.") || Name.startswith("x86.sse41.pmovsx") || + Name == "x86.sse2.cvtdq2pd" || + Name == "x86.sse2.cvtps2pd" || + Name == "x86.avx.cvtdq2.pd.256" || + Name == "x86.avx.cvt.ps2.pd.256" || Name == "x86.avx.vinsertf128.pd.256" || Name == "x86.avx.vinsertf128.ps.256" || Name == "x86.avx.vinsertf128.si.256" || @@ -397,6 +401,29 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) { "pcmpgt"); // need to sign extend since icmp returns vector of i1 Rep = Builder.CreateSExt(Rep, CI->getType(), ""); + } else if (Name == "llvm.x86.sse2.cvtdq2pd" || + Name == "llvm.x86.sse2.cvtps2pd" || + Name == "llvm.x86.avx.cvtdq2.pd.256" || + Name == "llvm.x86.avx.cvt.ps2.pd.256") { + // Lossless i32/float to double conversion. + // Extract the bottom elements if necessary and convert to double vector. + Value *Src = CI->getArgOperand(0); + VectorType *SrcTy = cast<VectorType>(Src->getType()); + VectorType *DstTy = cast<VectorType>(CI->getType()); + Rep = CI->getArgOperand(0); + + unsigned NumDstElts = DstTy->getNumElements(); + if (NumDstElts < SrcTy->getNumElements()) { + assert(NumDstElts == 2 && "Unexpected vector size"); + const int ShuffleMask[2] = { 0, 1 }; + Rep = Builder.CreateShuffleVector(Rep, UndefValue::get(SrcTy), ShuffleMask); + } + + bool Int2Double = (StringRef::npos != Name.find("cvtdq2")); + if (Int2Double) + Rep = Builder.CreateSIToFP(Rep, DstTy, "cvtdq2pd"); + else + Rep = Builder.CreateFPExt(Rep, DstTy, "cvtps2pd"); } else if (Name == "llvm.x86.avx.movnt.dq.256" || Name == "llvm.x86.avx.movnt.ps.256" || Name == "llvm.x86.avx.movnt.pd.256") { |
