Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85281 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index e042310..e411756 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2573,16 +2573,8 @@
case ISD::ConstantFP: {
ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node);
// Check to see if this FP immediate is already legal.
- bool isLegal = false;
- for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(),
- E = TLI.legal_fpimm_end(); I != E; ++I) {
- if (CFP->isExactlyValue(*I)) {
- isLegal = true;
- break;
- }
- }
// If this is a legal constant, turn it into a TargetConstantFP node.
- if (isLegal)
+ if (TLI.isFPImmLegal(CFP->getValueAPF()))
Results.push_back(SDValue(Node, 0));
else
Results.push_back(ExpandConstantFP(CFP, true, DAG, TLI));
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index a2baee4..9f36b67 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -481,7 +481,7 @@
setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
// ConstantFP nodes default to expand. Targets can either change this to
- // Legal, in which case all fp constants are legal, or use addLegalFPImmediate
+ // Legal, in which case all fp constants are legal, or use isFPImmLegal()
// to optimize expansions for certain constants.
setOperationAction(ISD::ConstantFP, MVT::f32, Expand);
setOperationAction(ISD::ConstantFP, MVT::f64, Expand);