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Make changes necessary in LowerFormalArguments to support Mips64. 

llvm-svn: 143218
This commit is contained in:
Akira Hatanaka 2011-10-28 19:55:48 +00:00
parent b20a325baf
commit 104b7e3f2c
1 changed files with 17 additions and 17 deletions
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34
llvm/lib/Target/Mips/MipsISelLowering.cpp
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@ -2266,6 +2266,7 @@ MipsTargetLowering::LowerFormalArguments(SDValue Chain,
for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
EVT ValVT = VA.getValVT();
// Arguments stored on registers
if (VA.isRegLoc()) {
@ -2300,23 +2301,22 @@ MipsTargetLowering::LowerFormalArguments(SDValue Chain,
Opcode = ISD::AssertZext;
if (Opcode)
ArgValue = DAG.getNode(Opcode, dl, RegVT, ArgValue,
DAG.getValueType(VA.getValVT()));
ArgValue = DAG.getNode(ISD::TRUNCATE, dl, VA.getValVT(), ArgValue);
DAG.getValueType(ValVT));
ArgValue = DAG.getNode(ISD::TRUNCATE, dl, ValVT, ArgValue);
}
// Handle O32 ABI cases: i32->f32 and (i32,i32)->f64
if (IsO32) {
if (RegVT == MVT::i32 && VA.getValVT() == MVT::f32)
ArgValue = DAG.getNode(ISD::BITCAST, dl, MVT::f32, ArgValue);
if (RegVT == MVT::i32 && VA.getValVT() == MVT::f64) {
unsigned Reg2 = AddLiveIn(DAG.getMachineFunction(),
getNextIntArgReg(ArgReg), RC);
SDValue ArgValue2 = DAG.getCopyFromReg(Chain, dl, Reg2, RegVT);
if (!Subtarget->isLittle())
std::swap(ArgValue, ArgValue2);
ArgValue = DAG.getNode(MipsISD::BuildPairF64, dl, MVT::f64,
ArgValue, ArgValue2);
}
// Handle floating point arguments passed in integer registers.
if ((RegVT == MVT::i32 && ValVT == MVT::f32) ||
(RegVT == MVT::i64 && ValVT == MVT::f64))
ArgValue = DAG.getNode(ISD::BITCAST, dl, ValVT, ArgValue);
else if (IsO32 && RegVT == MVT::i32 && ValVT == MVT::f64) {
unsigned Reg2 = AddLiveIn(DAG.getMachineFunction(),
getNextIntArgReg(ArgReg), RC);
SDValue ArgValue2 = DAG.getCopyFromReg(Chain, dl, Reg2, RegVT);
if (!Subtarget->isLittle())
std::swap(ArgValue, ArgValue2);
ArgValue = DAG.getNode(MipsISD::BuildPairF64, dl, MVT::f64,
ArgValue, ArgValue2);
}
InVals.push_back(ArgValue);
@ -2343,12 +2343,12 @@ MipsTargetLowering::LowerFormalArguments(SDValue Chain,
}
// The stack pointer offset is relative to the caller stack frame.
LastFI = MFI->CreateFixedObject(VA.getValVT().getSizeInBits()/8,
LastFI = MFI->CreateFixedObject(ValVT.getSizeInBits()/8,
VA.getLocMemOffset(), true);
// Create load nodes to retrieve arguments from the stack
SDValue FIN = DAG.getFrameIndex(LastFI, getPointerTy());
InVals.push_back(DAG.getLoad(VA.getValVT(), dl, Chain, FIN,
InVals.push_back(DAG.getLoad(ValVT, dl, Chain, FIN,
MachinePointerInfo::getFixedStack(LastFI),
false, false, 0));
}