case ISD::ConstantFP: {
ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(Node);
if (Node->getValueType(0) == MVT::f64 && CN->isExactlyValue(+0.0)) {
+ if (Subtarget.hasMips64()) {
+ SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
+ Mips::ZERO_64, MVT::i64);
+ return CurDAG->getMachineNode(Mips::DMTC1, dl, MVT::f64, Zero);
+ }
+
SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
Mips::ZERO, MVT::i32);
return CurDAG->getMachineNode(Mips::BuildPairF64, dl, MVT::f64, Zero,
--- /dev/null
+; RUN: llc < %s -march=mips64el -mcpu=mips64 -mattr=n64 | FileCheck %s
+
+define double @foo1() nounwind readnone {
+entry:
+; CHECK: dmtc1 $zero
+ ret double 0.000000e+00
+}