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[X86] Combine LowerFP_TO_SINT and LowerFP_TO_UINT. They only differ by a single boolean flag passed to a helper function. Just check the opcode and create the flag. 

llvm-svn: 289333
This commit is contained in:
Craig Topper 2016-12-10 19:35:33 +00:00
parent 35289c62a8
commit 85f0e57c33
2 changed files with 8 additions and 25 deletions
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28
llvm/lib/Target/X86/X86ISelLowering.cpp
View File

@ -15232,30 +15232,14 @@ SDValue X86TargetLowering::LowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const {
DAG.getIntPtrConstant(0, DL));
}
SDValue X86TargetLowering::LowerFP_TO_SINT(SDValue Op,
SDValue X86TargetLowering::LowerFP_TO_INT(SDValue Op,
SelectionDAG &DAG) const {
assert(!Op.getSimpleValueType().isVector());
bool IsSigned = Op.getOpcode() == ISD::FP_TO_SINT;
std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG,
/*IsSigned=*/ true, /*IsReplace=*/ false);
SDValue FIST = Vals.first, StackSlot = Vals.second;
// If FP_TO_INTHelper failed, the node is actually supposed to be Legal.
if (!FIST.getNode())
return Op;
if (StackSlot.getNode())
// Load the result.
return DAG.getLoad(Op.getValueType(), SDLoc(Op), FIST, StackSlot,
MachinePointerInfo());
// The node is the result.
return FIST;
}
SDValue X86TargetLowering::LowerFP_TO_UINT(SDValue Op,
SelectionDAG &DAG) const {
std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG,
/*IsSigned=*/ false, /*IsReplace=*/ false);
IsSigned, /*IsReplace=*/ false);
SDValue FIST = Vals.first, StackSlot = Vals.second;
// If FP_TO_INTHelper failed, the node is actually supposed to be Legal.
if (!FIST.getNode())
@ -22795,8 +22779,8 @@ SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const {
case ISD::ZERO_EXTEND_VECTOR_INREG:
case ISD::SIGN_EXTEND_VECTOR_INREG:
return LowerEXTEND_VECTOR_INREG(Op, Subtarget, DAG);
case ISD::FP_TO_SINT: return LowerFP_TO_SINT(Op, DAG);
case ISD::FP_TO_UINT: return LowerFP_TO_UINT(Op, DAG);
case ISD::FP_TO_SINT:
case ISD::FP_TO_UINT: return LowerFP_TO_INT(Op, DAG);
case ISD::FP_EXTEND: return LowerFP_EXTEND(Op, DAG);
case ISD::LOAD: return LowerExtendedLoad(Op, Subtarget, DAG);
case ISD::FABS:

3
llvm/lib/Target/X86/X86ISelLowering.h
View File

@ -1137,8 +1137,7 @@ namespace llvm {
SDValue LowerUINT_TO_FP_i32(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerUINT_TO_FP_vec(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFP_TO_UINT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerToBT(SDValue And, ISD::CondCode CC, const SDLoc &dl,
SelectionDAG &DAG) const;
SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;