Handle the constantfp created during post-legalization dag combiner phase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78594 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 3304900..823ae2f 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -988,6 +988,24 @@
// Other cases are autogenerated.
break;
}
+ case ISD::ConstantFP: {
+ ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(N);
+ MVT VT = CFP->getValueType(0);
+ ConstantFP *LLVMC = const_cast<ConstantFP*>(CFP->getConstantFPValue());
+ SDValue CPIdx = CurDAG->getTargetConstantPool(LLVMC, TLI.getPointerTy());
+ SDNode *ResNode;
+ SDValue Ops[] = {
+ CPIdx,
+ CurDAG->getTargetConstant(0, MVT::i32),
+ getAL(CurDAG),
+ CurDAG->getRegister(0, MVT::i32),
+ CurDAG->getEntryNode()
+ };
+ unsigned Opc = (VT == MVT::f32) ? ARM::FLDS : ARM::FLDD;
+ ResNode=CurDAG->getTargetNode(Opc, dl, VT, MVT::Other, Ops, 5);
+ ReplaceUses(Op, SDValue(ResNode, 0));
+ return NULL;
+ }
case ISD::FrameIndex: {
// Selects to ADDri FI, 0 which in turn will become ADDri SP, imm.
int FI = cast<FrameIndexSDNode>(N)->getIndex();