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[LegalizeTypes] Add SoftenFloatOp_Unary to reduce some duplication for softening LRINT/LLRINT/LROUND/LLROUND 

Summary: This will be enhanced in a follow up to add strict fp support

Reviewers: efriedma

Reviewed By: efriedma

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70751
This commit is contained in:
Craig Topper 2019-11-26 17:37:51 -08:00
parent 7ddc6287a0
commit 350565dbc0
2 changed files with 36 additions and 54 deletions
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89
llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
View File

@ -945,72 +945,53 @@ SDValue DAGTypeLegalizer::SoftenFloatOp_FCOPYSIGN(SDNode *N) {
return DAG.getNode(ISD::FCOPYSIGN, dl, LVT, LHS, RHS);
}
SDValue DAGTypeLegalizer::SoftenFloatOp_LROUND(SDNode *N) {
SDValue DAGTypeLegalizer::SoftenFloatOp_Unary(SDNode *N, RTLIB::Libcall LC) {
EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
SDValue Op = GetSoftenedFloat(N->getOperand(0));
EVT RetVT = N->getOperand(0).getValueType();
TargetLowering::MakeLibCallOptions CallOptions;
EVT OpsVT[1] = { N->getOperand(0).getValueType() };
CallOptions.setTypeListBeforeSoften(OpsVT, N->getValueType(0), true);
return TLI.makeLibCall(DAG, GetFPLibCall(RetVT,
RTLIB::LROUND_F32,
RTLIB::LROUND_F64,
RTLIB::LROUND_F80,
RTLIB::LROUND_F128,
RTLIB::LROUND_PPCF128),
NVT, Op, CallOptions, SDLoc(N)).first;
EVT OpVT = N->getOperand(0).getValueType();
CallOptions.setTypeListBeforeSoften(OpVT, N->getValueType(0), true);
return TLI.makeLibCall(DAG, LC, NVT, Op, CallOptions, SDLoc(N)).first;
}
SDValue DAGTypeLegalizer::SoftenFloatOp_LROUND(SDNode *N) {
EVT OpVT = N->getOperand(0).getValueType();
return SoftenFloatOp_Unary(N, GetFPLibCall(OpVT,
RTLIB::LROUND_F32,
RTLIB::LROUND_F64,
RTLIB::LROUND_F80,
RTLIB::LROUND_F128,
RTLIB::LROUND_PPCF128));
}
SDValue DAGTypeLegalizer::SoftenFloatOp_LLROUND(SDNode *N) {
EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
SDValue Op = GetSoftenedFloat(N->getOperand(0));
EVT RetVT = N->getOperand(0).getValueType();
TargetLowering::MakeLibCallOptions CallOptions;
EVT OpsVT[1] = { N->getOperand(0).getValueType() };
CallOptions.setTypeListBeforeSoften(OpsVT, N->getValueType(0), true);
return TLI.makeLibCall(DAG, GetFPLibCall(RetVT,
RTLIB::LLROUND_F32,
RTLIB::LLROUND_F64,
RTLIB::LLROUND_F80,
RTLIB::LLROUND_F128,
RTLIB::LLROUND_PPCF128),
NVT, Op, CallOptions, SDLoc(N)).first;
EVT OpVT = N->getOperand(0).getValueType();
return SoftenFloatOp_Unary(N, GetFPLibCall(OpVT,
RTLIB::LLROUND_F32,
RTLIB::LLROUND_F64,
RTLIB::LLROUND_F80,
RTLIB::LLROUND_F128,
RTLIB::LLROUND_PPCF128));
}
SDValue DAGTypeLegalizer::SoftenFloatOp_LRINT(SDNode *N) {
EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
SDValue Op = GetSoftenedFloat(N->getOperand(0));
EVT RetVT = N->getOperand(0).getValueType();
TargetLowering::MakeLibCallOptions CallOptions;
EVT OpsVT[1] = { N->getOperand(0).getValueType() };
CallOptions.setTypeListBeforeSoften(OpsVT, N->getValueType(0), true);
return TLI.makeLibCall(DAG, GetFPLibCall(RetVT,
RTLIB::LRINT_F32,
RTLIB::LRINT_F64,
RTLIB::LRINT_F80,
RTLIB::LRINT_F128,
RTLIB::LRINT_PPCF128),
NVT, Op, CallOptions, SDLoc(N)).first;
EVT OpVT = N->getOperand(0).getValueType();
return SoftenFloatOp_Unary(N, GetFPLibCall(OpVT,
RTLIB::LRINT_F32,
RTLIB::LRINT_F64,
RTLIB::LRINT_F80,
RTLIB::LRINT_F128,
RTLIB::LRINT_PPCF128));
}
SDValue DAGTypeLegalizer::SoftenFloatOp_LLRINT(SDNode *N) {
EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
SDValue Op = GetSoftenedFloat(N->getOperand(0));
EVT RetVT = N->getOperand(0).getValueType();
TargetLowering::MakeLibCallOptions CallOptions;
EVT OpsVT[1] = { N->getOperand(0).getValueType() };
CallOptions.setTypeListBeforeSoften(OpsVT, N->getValueType(0), true);
return TLI.makeLibCall(DAG, GetFPLibCall(RetVT,
RTLIB::LLRINT_F32,
RTLIB::LLRINT_F64,
RTLIB::LLRINT_F80,
RTLIB::LLRINT_F128,
RTLIB::LLRINT_PPCF128),
NVT, Op, CallOptions, SDLoc(N)).first;
EVT OpVT = N->getOperand(0).getValueType();
return SoftenFloatOp_Unary(N, GetFPLibCall(OpVT,
RTLIB::LLRINT_F32,
RTLIB::LLRINT_F64,
RTLIB::LLRINT_F80,
RTLIB::LLRINT_F128,
RTLIB::LLRINT_PPCF128));
}
//===----------------------------------------------------------------------===//

1
llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
View File

@ -530,6 +530,7 @@ private:
// Convert Float Operand to Integer.
bool SoftenFloatOperand(SDNode *N, unsigned OpNo);
SDValue SoftenFloatOp_Unary(SDNode *N, RTLIB::Libcall LC);
SDValue SoftenFloatOp_BITCAST(SDNode *N);
SDValue SoftenFloatOp_BR_CC(SDNode *N);
SDValue SoftenFloatOp_FP_EXTEND(SDNode *N);