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Don't make use of an illegal type (i64) when 

lowering f64 function arguments.

llvm-svn: 60944
This commit is contained in:
Duncan Sands 2008-12-12 08:05:40 +00:00
parent 30032889ae
commit dd6f3dbd05
1 changed files with 31 additions and 5 deletions
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36
llvm/lib/Target/Sparc/SparcISelLowering.cpp
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@ -347,12 +347,37 @@ static SDValue LowerCALL(SDValue Op, SelectionDAG &DAG) {
RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Val));
}
break;
case MVT::f64:
case MVT::f64: {
ObjSize = 8;
// Otherwise, convert this to a FP value in int regs.
Val = DAG.getNode(ISD::BIT_CONVERT, MVT::i64, Val);
// FALL THROUGH
case MVT::i64:
if (RegsToPass.size() >= 6) {
ValToStore = Val; // Whole thing is passed in memory.
break;
}
// Break into top and bottom parts by storing to the stack and loading
// out the parts as integers. Top part goes in a reg.
SDValue StackPtr = DAG.CreateStackTemporary(MVT::f64, MVT::i32);
SDValue Store = DAG.getStore(DAG.getEntryNode(), Val, StackPtr, NULL, 0);
// Sparc is big-endian, so the high part comes first.
SDValue Hi = DAG.getLoad(MVT::i32, Store, StackPtr, NULL, 0, 0);
// Increment the pointer to the other half.
StackPtr = DAG.getNode(ISD::ADD, StackPtr.getValueType(), StackPtr,
DAG.getIntPtrConstant(4));
// Load the low part.
SDValue Lo = DAG.getLoad(MVT::i32, Store, StackPtr, NULL, 0, 0);
RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Hi));
if (RegsToPass.size() >= 6) {
ValToStore = Lo;
ArgOffset += 4;
ObjSize = 4;
} else {
RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Lo));
}
break;
}
case MVT::i64: {
ObjSize = 8;
if (RegsToPass.size() >= 6) {
ValToStore = Val; // Whole thing is passed in memory.
@ -375,6 +400,7 @@ static SDValue LowerCALL(SDValue Op, SelectionDAG &DAG) {
}
break;
}
}
if (ValToStore.getNode()) {
SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);