diff options
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 159af0c56ce..fde91a10bfa 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -5926,37 +5926,6 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID, Ops[0] = Builder.CreateBitCast(Ops[0], PtrTy); return Builder.CreateStore(Ops[1], Ops[0]); } - case X86::BI__builtin_ia32_palignr: { - unsigned shiftVal = cast<llvm::ConstantInt>(Ops[2])->getZExtValue(); - - // If palignr is shifting the pair of input vectors less than 9 bytes, - // emit a shuffle instruction. - if (shiftVal <= 8) { - SmallVector<llvm::Constant*, 8> Indices; - for (unsigned i = 0; i != 8; ++i) - Indices.push_back(llvm::ConstantInt::get(Int32Ty, shiftVal + i)); - - Value* SV = llvm::ConstantVector::get(Indices); - return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr"); - } - - // If palignr is shifting the pair of input vectors more than 8 but less - // than 16 bytes, emit a logical right shift of the destination. - if (shiftVal < 16) { - // MMX has these as 1 x i64 vectors for some odd optimization reasons. - llvm::Type *VecTy = llvm::VectorType::get(Int64Ty, 1); - - Ops[0] = Builder.CreateBitCast(Ops[0], VecTy, "cast"); - Ops[1] = llvm::ConstantInt::get(VecTy, (shiftVal-8) * 8); - - // create i32 constant - llvm::Function *F = CGM.getIntrinsic(Intrinsic::x86_mmx_psrl_q); - return Builder.CreateCall(F, makeArrayRef(Ops.data(), 2), "palignr"); - } - - // If palignr is shifting the pair of vectors more than 16 bytes, emit zero. - return llvm::Constant::getNullValue(ConvertType(E->getType())); - } case X86::BI__builtin_ia32_palignr128: { unsigned shiftVal = cast<llvm::ConstantInt>(Ops[2])->getZExtValue(); |
