Changes in directory llvm/lib/Target/Alpha:
AlphaISelDAGToDAG.cpp updated: 1.16 -> 1.17
---
Log message:
restore a more restricted select
---
Diffs of the changes: (+32 -0)
AlphaISelDAGToDAG.cpp | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+)
Index: llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
diff -u llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp:1.16
llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp:1.17
--- llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp:1.16 Sat Dec 10 21:54:31 2005
+++ llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp Mon Dec 12 11:43:52 2005
@@ -401,6 +401,38 @@
}
break;
+ case ISD::SELECT:
+ if (MVT::isFloatingPoint(N->getValueType(0)) &&
+ (N->getOperand(0).getOpcode() != ISD::SETCC ||
+ !MVT::isFloatingPoint(N->getOperand(0).getOperand(1).getValueType())))
{
+ //This should be the condition not covered by the Patterns
+ //FIXME: Don't have SelectCode die, but rather return something testable
+ // so that things like this can be caught in fall though code
+ //move int to fp
+ bool isDouble = N->getValueType(0) == MVT::f64;
+ SDOperand LD,
+ cond = Select(N->getOperand(0)),
+ TV = Select(N->getOperand(1)),
+ FV = Select(N->getOperand(2));
+
+ if (AlphaLowering.hasITOF()) {
+ LD = CurDAG->getNode(AlphaISD::ITOFT_, MVT::f64, cond);
+ } else {
+ int FrameIdx =
+ CurDAG->getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
+ SDOperand FI = CurDAG->getFrameIndex(FrameIdx, MVT::i64);
+ SDOperand ST = CurDAG->getTargetNode(Alpha::STQ, MVT::Other,
+ cond, FI,
CurDAG->getRegister(Alpha::R31, MVT::i64));
+ LD = CurDAG->getTargetNode(Alpha::LDT, MVT::f64, FI,
+ CurDAG->getRegister(Alpha::R31, MVT::i64),
+ ST);
+ }
+ SDOperand FP =
CurDAG->getTargetNode(isDouble?Alpha::FCMOVEQT:Alpha::FCMOVEQS,
+ MVT::f64, FV, TV, LD);
+ return FP;
+ }
+ break;
+
}
return SelectCode(Op);
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