diff options
Diffstat (limited to 'llvm/lib/IR/AutoUpgrade.cpp')
| -rw-r--r-- | llvm/lib/IR/AutoUpgrade.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp index 8306a1afeed..6800e7a0a13 100644 --- a/llvm/lib/IR/AutoUpgrade.cpp +++ b/llvm/lib/IR/AutoUpgrade.cpp @@ -179,6 +179,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) { Name == "x86.avx2.pblendw" || Name == "x86.avx2.pblendd.128" || Name == "x86.avx2.pblendd.256" || + Name == "x86.avx2.vbroadcasti128" || (Name.startswith("x86.xop.vpcom") && F->arg_size() == 2)) { NewFn = nullptr; return true; @@ -553,6 +554,17 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) { for (unsigned I = 0; I < EltNum; ++I) Rep = Builder.CreateInsertElement(Rep, Load, ConstantInt::get(I32Ty, I)); + } else if (Name == "llvm.x86.avx2.vbroadcasti128") { + // Replace vbroadcasts with a vector shuffle. + Value *Op = Builder.CreatePointerCast( + CI->getArgOperand(0), + PointerType::getUnqual(VectorType::get(Type::getInt64Ty(C), 2))); + Value *Load = Builder.CreateLoad(Op); + SmallVector<Constant *, 4> Idxs; // 0, 1, 0, 1. + for (unsigned i = 0; i != 4; ++i) + Idxs.push_back(Builder.getInt32(i & 1)); + Rep = Builder.CreateShuffleVector(Load, UndefValue::get(Load->getType()), + ConstantVector::get(Idxs)); } else if (Name == "llvm.x86.sse2.psll.dq") { // 128-bit shift left specified in bits. unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue(); |
