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now that physregs can exist in the same dag with multiple types, remove some

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ugly hacks


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23162 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-30 22:59:48 +00:00
parent 0fdd768094
commit eb80fe8ff6
1 changed files with 8 additions and 27 deletions
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35
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -1506,26 +1506,19 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
for (unsigned i = 2, e = N->getNumOperands(); i != e; ++i) {
unsigned DestReg = 0;
MVT::ValueType RegTy;
if (N->getOperand(i).getValueType() == MVT::i32) {
MVT::ValueType RegTy = N->getOperand(i).getValueType();
if (RegTy == MVT::i32) {
assert(GPR_idx < 8 && "Too many int args");
DestReg = GPR[GPR_idx++];
RegTy = MVT::i32;
} else {
assert(MVT::isFloatingPoint(N->getOperand(i).getValueType()) &&
"Unpromoted integer arg?");
assert(FPR_idx < 13 && "Too many fp args");
DestReg = FPR[FPR_idx++];
RegTy = MVT::f64; // Even if this is really f32!
}
if (N->getOperand(i).getOpcode() != ISD::UNDEF) {
SDOperand Val = Select(N->getOperand(i));
if (Val.getValueType() != RegTy) {
// Use a register-register copy to handle f32 values in f64 registers.
assert(Val.getValueType() == MVT::f32 && RegTy == MVT::f64);
Val = CurDAG->getTargetNode(PPC::FMR, MVT::f64, Val);
}
Chain = CurDAG->getCopyToReg(Chain, DestReg, Val, InFlag);
InFlag = Chain.getValue(1);
CallOperands.push_back(CurDAG->getRegister(DestReg, RegTy));
@ -1563,14 +1556,9 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
break;
case MVT::f32:
case MVT::f64:
Chain = CurDAG->getCopyFromReg(Chain, PPC::F1, MVT::f64,
Chain = CurDAG->getCopyFromReg(Chain, PPC::F1, N->getValueType(0),
Chain.getValue(1)).getValue(1);
if (N->getValueType(0) == MVT::f64)
CallResults.push_back(Chain.getValue(0));
else
// Insert an FMR to convert the result to f32 from f64.
CallResults.push_back(CurDAG->getTargetNode(PPC::FMR, MVT::f32,
Chain.getValue(0)));
CallResults.push_back(Chain.getValue(0));
break;
}
@ -1583,18 +1571,11 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
if (N->getNumOperands() > 1) {
SDOperand Val = Select(N->getOperand(1));
switch (N->getOperand(1).getValueType()) {
default: assert(0 && "Unknown return type!");
case MVT::f32:
// Insert a copy to get the type right.
Val = CurDAG->getTargetNode(PPC::FMR, MVT::f64, Val);
// FALL THROUGH
case MVT::f64:
Chain = CurDAG->getCopyToReg(Chain, PPC::F1, Val);
break;
case MVT::i32:
if (N->getOperand(1).getValueType() == MVT::i32) {
Chain = CurDAG->getCopyToReg(Chain, PPC::R3, Val);
break;
} else {
assert(MVT::isFloatingPoint(N->getOperand(1).getValueType()));
Chain = CurDAG->getCopyToReg(Chain, PPC::F1, Val);
}
if (N->getNumOperands() > 2) {