[llvm-commits] CVS: llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
Chris Lattner
lattner at cs.uiuc.edu
Sat Dec 17 00:15:21 PST 2005
Changes in directory llvm/lib/Target/SparcV8:
SparcV8ISelDAGToDAG.cpp updated: 1.2 -> 1.3
---
Log message:
Implement ret with operand, giving us this:
int %test(int %A) {
ret int %A
}
---
Diffs of the changes: (+33 -2)
SparcV8ISelDAGToDAG.cpp | 35 +++++++++++++++++++++++++++++++++--
1 files changed, 33 insertions(+), 2 deletions(-)
Index: llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
diff -u llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.2 llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.3
--- llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.2 Sat Dec 17 02:03:24 2005
+++ llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp Sat Dec 17 02:15:09 2005
@@ -139,8 +139,15 @@
SDOperand SparcV8TargetLowering::LowerReturnTo(SDOperand Chain, SDOperand Op,
SelectionDAG &DAG) {
- assert(0 && "Unimp");
- abort();
+ if (Op.getValueType() == MVT::i64) {
+ SDOperand Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Op,
+ DAG.getConstant(1, MVT::i32));
+ SDOperand Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Op,
+ DAG.getConstant(0, MVT::i32));
+ return DAG.getNode(ISD::RET, MVT::Other, Chain, Lo, Hi);
+ } else {
+ return DAG.getNode(ISD::RET, MVT::Other, Chain, Op);
+ }
}
SDOperand SparcV8TargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP,
@@ -219,6 +226,30 @@
switch (N->getOpcode()) {
default: break;
+ case ISD::RET: {
+ if (N->getNumOperands() == 2) {
+ SDOperand Chain = Select(N->getOperand(0)); // Token chain.
+ SDOperand Val = Select(N->getOperand(1));
+ if (N->getOperand(1).getValueType() == MVT::i32) {
+ Chain = CurDAG->getCopyToReg(Chain, V8::I0, Val);
+ } else if (N->getOperand(1).getValueType() == MVT::f32) {
+ Chain = CurDAG->getCopyToReg(Chain, V8::F0, Val);
+ } else {
+ assert(N->getOperand(1).getValueType() == MVT::f64);
+ Chain = CurDAG->getCopyToReg(Chain, V8::D0, Val);
+ }
+ return CurDAG->SelectNodeTo(N, V8::RETL, MVT::Other, Chain);
+ } else if (N->getNumOperands() > 1) {
+ SDOperand Chain = Select(N->getOperand(0)); // Token chain.
+ assert(N->getOperand(1).getValueType() == MVT::i32 &&
+ N->getOperand(2).getValueType() == MVT::i32 &&
+ N->getNumOperands() == 3 && "Unknown two-register ret value!");
+ Chain = CurDAG->getCopyToReg(Chain, V8::I0, Select(N->getOperand(1)));
+ Chain = CurDAG->getCopyToReg(Chain, V8::I1, Select(N->getOperand(2)));
+ return CurDAG->SelectNodeTo(N, V8::RETL, MVT::Other, Chain);
+ }
+ break; // Generated code handles the void case.
+ }
}
return SelectCode(Op);
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