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[StrictFP] Make getStrictFPOpcodeAction(...) more accessible

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NFCI. This function will be reused in upcoming patches.

Differential Revision: https://reviews.llvm.org/D47380

llvm-svn: 333433
This commit is contained in:
Cameron McInally 2018-05-29 16:49:32 +00:00
parent 718ff9bbbf
commit 51ec5fcdb3
2 changed files with 31 additions and 32 deletions
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29
include/llvm/CodeGen/TargetLowering.h
View File

@ -767,6 +767,35 @@ public:
return OpActions[(unsigned)VT.getSimpleVT().SimpleTy][Op];
}
LegalizeAction getStrictFPOperationAction(unsigned Op, EVT VT) const {
unsigned EqOpc;
switch (Op) {
default: llvm_unreachable("Unexpected FP pseudo-opcode");
case ISD::STRICT_FSQRT: EqOpc = ISD::FSQRT; break;
case ISD::STRICT_FPOW: EqOpc = ISD::FPOW; break;
case ISD::STRICT_FPOWI: EqOpc = ISD::FPOWI; break;
case ISD::STRICT_FMA: EqOpc = ISD::FMA; break;
case ISD::STRICT_FSIN: EqOpc = ISD::FSIN; break;
case ISD::STRICT_FCOS: EqOpc = ISD::FCOS; break;
case ISD::STRICT_FEXP: EqOpc = ISD::FEXP; break;
case ISD::STRICT_FEXP2: EqOpc = ISD::FEXP2; break;
case ISD::STRICT_FLOG: EqOpc = ISD::FLOG; break;
case ISD::STRICT_FLOG10: EqOpc = ISD::FLOG10; break;
case ISD::STRICT_FLOG2: EqOpc = ISD::FLOG2; break;
case ISD::STRICT_FRINT: EqOpc = ISD::FRINT; break;
case ISD::STRICT_FNEARBYINT: EqOpc = ISD::FNEARBYINT; break;
}
auto Action = getOperationAction(EqOpc, VT);
// We don't currently handle Custom or Promote for strict FP pseudo-ops.
// For now, we just expand for those cases.
if (Action != Legal)
Action = Expand;
return Action;
}
/// Return true if the specified operation is legal on this target or can be
/// made legal with custom lowering. This is used to help guide high-level
/// lowering decisions.

34
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -946,36 +946,6 @@ void SelectionDAGLegalize::LegalizeLoadOps(SDNode *Node) {
}
}
static TargetLowering::LegalizeAction
getStrictFPOpcodeAction(const TargetLowering &TLI, unsigned Opcode, EVT VT) {
unsigned EqOpc;
switch (Opcode) {
default: llvm_unreachable("Unexpected FP pseudo-opcode");
case ISD::STRICT_FSQRT: EqOpc = ISD::FSQRT; break;
case ISD::STRICT_FPOW: EqOpc = ISD::FPOW; break;
case ISD::STRICT_FPOWI: EqOpc = ISD::FPOWI; break;
case ISD::STRICT_FMA: EqOpc = ISD::FMA; break;
case ISD::STRICT_FSIN: EqOpc = ISD::FSIN; break;
case ISD::STRICT_FCOS: EqOpc = ISD::FCOS; break;
case ISD::STRICT_FEXP: EqOpc = ISD::FEXP; break;
case ISD::STRICT_FEXP2: EqOpc = ISD::FEXP2; break;
case ISD::STRICT_FLOG: EqOpc = ISD::FLOG; break;
case ISD::STRICT_FLOG10: EqOpc = ISD::FLOG10; break;
case ISD::STRICT_FLOG2: EqOpc = ISD::FLOG2; break;
case ISD::STRICT_FRINT: EqOpc = ISD::FRINT; break;
case ISD::STRICT_FNEARBYINT: EqOpc = ISD::FNEARBYINT; break;
}
auto Action = TLI.getOperationAction(EqOpc, VT);
// We don't currently handle Custom or Promote for strict FP pseudo-ops.
// For now, we just expand for those cases.
if (Action != TargetLowering::Legal)
Action = TargetLowering::Expand;
return Action;
}
/// Return a legal replacement for the given operation, with all legal operands.
void SelectionDAGLegalize::LegalizeOp(SDNode *Node) {
LLVM_DEBUG(dbgs() << "\nLegalizing: "; Node->dump(&DAG));
@ -1138,8 +1108,8 @@ void SelectionDAGLegalize::LegalizeOp(SDNode *Node) {
// equivalent. For instance, if ISD::FSQRT is legal then ISD::STRICT_FSQRT
// is also legal, but if ISD::FSQRT requires expansion then so does
// ISD::STRICT_FSQRT.
Action = getStrictFPOpcodeAction(TLI, Node->getOpcode(),
Node->getValueType(0));
Action = TLI.getStrictFPOperationAction(Node->getOpcode(),
Node->getValueType(0));
break;
default:
if (Node->getOpcode() >= ISD::BUILTIN_OP_END) {