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Codegen CopyFromReg using the regclass that matches the valuetype of the

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destination vreg.

llvm-svn: 23586
This commit is contained in:
Chris Lattner 2005-10-02 06:34:16 +00:00
parent 89c435541a
commit 2b189d4f9e
1 changed files with 11 additions and 9 deletions
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18
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
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@ -1031,11 +1031,11 @@ void SimpleSched::EmitNode(NodeInfo *NI) {
if (MRegisterInfo::isVirtualRegister(SrcReg)) {
TRC = RegMap->getRegClass(SrcReg);
} else {
// FIXME: we don't know what register class to generate this for. Do
// a brute force search and pick the first match. :(
// Pick the register class of the right type that contains this physreg.
for (MRegisterInfo::regclass_iterator I = MRI.regclass_begin(),
E = MRI.regclass_end(); I != E; ++I)
if ((*I)->contains(SrcReg)) {
if ((*I)->getType() == Node->getValueType(0) &&
(*I)->contains(SrcReg)) {
TRC = *I;
break;
}
@ -1100,7 +1100,8 @@ unsigned SimpleSched::EmitDAG(SDOperand Op) {
Op.getOperand(i).getValueType() != MVT::Flag &&
"Chain and flag operands should occur at end of operand list!");
MI->addRegOperand(EmitDAG(Op.getOperand(i)), MachineOperand::Use);
unsigned VReg = EmitDAG(Op.getOperand(i));
MI->addRegOperand(VReg, MachineOperand::Use);
} else if (ConstantSDNode *C =
dyn_cast<ConstantSDNode>(Op.getOperand(i))) {
MI->addZeroExtImm64Operand(C->getValue());
@ -1126,7 +1127,8 @@ unsigned SimpleSched::EmitDAG(SDOperand Op) {
assert(Op.getOperand(i).getValueType() != MVT::Other &&
Op.getOperand(i).getValueType() != MVT::Flag &&
"Chain and flag operands should occur at end of operand list!");
MI->addRegOperand(EmitDAG(Op.getOperand(i)), MachineOperand::Use);
unsigned VReg = EmitDAG(Op.getOperand(i));
MI->addRegOperand(VReg, MachineOperand::Use);
}
}
@ -1188,11 +1190,11 @@ unsigned SimpleSched::EmitDAG(SDOperand Op) {
if (MRegisterInfo::isVirtualRegister(SrcReg)) {
TRC = RegMap->getRegClass(SrcReg);
} else {
// FIXME: we don't know what register class to generate this for. Do
// a brute force search and pick the first match. :(
// Pick the register class of the right type that contains this physreg.
for (MRegisterInfo::regclass_iterator I = MRI.regclass_begin(),
E = MRI.regclass_end(); I != E; ++I)
if ((*I)->contains(SrcReg)) {
if ((*I)->getType() == Op.Val->getValueType(0) &&
(*I)->contains(SrcReg)) {
TRC = *I;
break;
}