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[X86] Reuse the EmitX86Select routine to handle the select for masked palignr too. 

llvm-svn: 272245
This commit is contained in:
Craig Topper 2016-06-09 05:15:00 +00:00
parent 3a0c7260f4
commit c1442973c8
1 changed files with 7 additions and 16 deletions
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23
clang/lib/CodeGen/CGBuiltin.cpp
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@ -6334,17 +6334,16 @@ static Value *EmitX86MaskedLoad(CodeGenFunction &CGF,
}
static Value *EmitX86Select(CodeGenFunction &CGF,
SmallVectorImpl<Value *> &Ops) {
Value *Mask, Value *Op0, Value *Op1) {
// If the mask is all ones just return first argument.
if (const auto *C = dyn_cast<Constant>(Ops[0]))
if (const auto *C = dyn_cast<Constant>(Mask))
if (C->isAllOnesValue())
return Ops[1];
return Op0;
Value *MaskVec = getMaskVecValue(CGF, Ops[0],
Ops[1]->getType()->getVectorNumElements());
Mask = getMaskVecValue(CGF, Mask, Op0->getType()->getVectorNumElements());
return CGF.Builder.CreateSelect(MaskVec, Ops[1], Ops[2]);
return CGF.Builder.CreateSelect(Mask, Op0, Op1);
}
Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
@ -6702,15 +6701,7 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
if (Ops.size() == 3)
return Align;
// If the mask is all ones just emit the align operation.
if (const auto *C = dyn_cast<Constant>(Ops[4]))
if (C->isAllOnesValue())
return Align;
llvm::VectorType *MaskTy = llvm::VectorType::get(Builder.getInt1Ty(),
NumElts);
llvm::Value *Mask = Builder.CreateBitCast(Ops[4], MaskTy, "cast");
return Builder.CreateSelect(Mask, Align, Ops[3]);
return EmitX86Select(*this, Ops[4], Align, Ops[3]);
}
case X86::BI__builtin_ia32_pslldqi256: {
@ -6812,7 +6803,7 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
case X86::BI__builtin_ia32_selectpd_128:
case X86::BI__builtin_ia32_selectpd_256:
case X86::BI__builtin_ia32_selectpd_512:
return EmitX86Select(*this, Ops);
return EmitX86Select(*this, Ops[0], Ops[1], Ops[2]);
// 3DNow!
case X86::BI__builtin_ia32_pswapdsf:
case X86::BI__builtin_ia32_pswapdsi: {