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Move per-function state out of TargetLowering subclasses and into

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MachineFunctionInfo subclasses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101634 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-04-17 14:41:14 +00:00
parent 2329d66a9f
commit 1e93df6f0b
29 changed files with 350 additions and 174 deletions
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61
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -1291,11 +1291,7 @@ SDValue PPCTargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) {
}
SDValue PPCTargetLowering::LowerVAARG(SDValue Op, SelectionDAG &DAG,
int VarArgsFrameIndex,
int VarArgsStackOffset,
unsigned VarArgsNumGPR,
unsigned VarArgsNumFPR,
const PPCSubtarget &Subtarget) {
const PPCSubtarget &Subtarget) {
llvm_unreachable("VAARG not yet implemented for the SVR4 ABI!");
return SDValue(); // Not reached
@ -1343,18 +1339,17 @@ SDValue PPCTargetLowering::LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG) {
}
SDValue PPCTargetLowering::LowerVASTART(SDValue Op, SelectionDAG &DAG,
int VarArgsFrameIndex,
int VarArgsStackOffset,
unsigned VarArgsNumGPR,
unsigned VarArgsNumFPR,
const PPCSubtarget &Subtarget) {
MachineFunction &MF = DAG.getMachineFunction();
PPCFunctionInfo *FuncInfo = MF.getInfo<PPCFunctionInfo>();
DebugLoc dl = Op.getDebugLoc();
if (Subtarget.isDarwinABI() || Subtarget.isPPC64()) {
// vastart just stores the address of the VarArgsFrameIndex slot into the
// memory location argument.
EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
SDValue FR = DAG.getFrameIndex(VarArgsFrameIndex, PtrVT);
SDValue FR = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(), PtrVT);
const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue();
return DAG.getStore(Op.getOperand(0), dl, FR, Op.getOperand(1), SV, 0,
false, false, 0);
@ -1385,14 +1380,16 @@ SDValue PPCTargetLowering::LowerVASTART(SDValue Op, SelectionDAG &DAG,
// } va_list[1];
SDValue ArgGPR = DAG.getConstant(VarArgsNumGPR, MVT::i32);
SDValue ArgFPR = DAG.getConstant(VarArgsNumFPR, MVT::i32);
SDValue ArgGPR = DAG.getConstant(FuncInfo->getVarArgsNumGPR(), MVT::i32);
SDValue ArgFPR = DAG.getConstant(FuncInfo->getVarArgsNumFPR(), MVT::i32);
EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
SDValue StackOffsetFI = DAG.getFrameIndex(VarArgsStackOffset, PtrVT);
SDValue FR = DAG.getFrameIndex(VarArgsFrameIndex, PtrVT);
SDValue StackOffsetFI = DAG.getFrameIndex(FuncInfo->getVarArgsStackOffset(),
PtrVT);
SDValue FR = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(),
PtrVT);
uint64_t FrameOffset = PtrVT.getSizeInBits()/8;
SDValue ConstFrameOffset = DAG.getConstant(FrameOffset, PtrVT);
@ -1575,6 +1572,7 @@ PPCTargetLowering::LowerFormalArguments_SVR4(
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
PPCFunctionInfo *FuncInfo = MF.getInfo<PPCFunctionInfo>();
EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
// Potential tail calls could cause overwriting of argument stack slots.
@ -1688,24 +1686,27 @@ PPCTargetLowering::LowerFormalArguments_SVR4(
};
const unsigned NumFPArgRegs = array_lengthof(FPArgRegs);
VarArgsNumGPR = CCInfo.getFirstUnallocated(GPArgRegs, NumGPArgRegs);
VarArgsNumFPR = CCInfo.getFirstUnallocated(FPArgRegs, NumFPArgRegs);
FuncInfo->setVarArgsNumGPR(CCInfo.getFirstUnallocated(GPArgRegs,
NumGPArgRegs));
FuncInfo->setVarArgsNumFPR(CCInfo.getFirstUnallocated(FPArgRegs,
NumFPArgRegs));
// Make room for NumGPArgRegs and NumFPArgRegs.
int Depth = NumGPArgRegs * PtrVT.getSizeInBits()/8 +
NumFPArgRegs * EVT(MVT::f64).getSizeInBits()/8;
VarArgsStackOffset = MFI->CreateFixedObject(PtrVT.getSizeInBits()/8,
CCInfo.getNextStackOffset(),
true, false);
FuncInfo->setVarArgsStackOffset(
MFI->CreateFixedObject(PtrVT.getSizeInBits()/8,
CCInfo.getNextStackOffset(),
true, false));
VarArgsFrameIndex = MFI->CreateStackObject(Depth, 8, false);
SDValue FIN = DAG.getFrameIndex(VarArgsFrameIndex, PtrVT);
FuncInfo->setVarArgsFrameIndex(MFI->CreateStackObject(Depth, 8, false));
SDValue FIN = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(), PtrVT);
// The fixed integer arguments of a variadic function are
// stored to the VarArgsFrameIndex on the stack.
unsigned GPRIndex = 0;
for (; GPRIndex != VarArgsNumGPR; ++GPRIndex) {
for (; GPRIndex != FuncInfo->getVarArgsNumGPR(); ++GPRIndex) {
SDValue Val = DAG.getRegister(GPArgRegs[GPRIndex], PtrVT);
SDValue Store = DAG.getStore(Chain, dl, Val, FIN, NULL, 0,
false, false, 0);
@ -1736,7 +1737,7 @@ PPCTargetLowering::LowerFormalArguments_SVR4(
// The double arguments are stored to the VarArgsFrameIndex
// on the stack.
unsigned FPRIndex = 0;
for (FPRIndex = 0; FPRIndex != VarArgsNumFPR; ++FPRIndex) {
for (FPRIndex = 0; FPRIndex != FuncInfo->getVarArgsNumFPR(); ++FPRIndex) {
SDValue Val = DAG.getRegister(FPArgRegs[FPRIndex], MVT::f64);
SDValue Store = DAG.getStore(Chain, dl, Val, FIN, NULL, 0,
false, false, 0);
@ -1780,6 +1781,7 @@ PPCTargetLowering::LowerFormalArguments_Darwin(
//
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
PPCFunctionInfo *FuncInfo = MF.getInfo<PPCFunctionInfo>();
EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
bool isPPC64 = PtrVT == MVT::i64;
@ -2090,9 +2092,10 @@ PPCTargetLowering::LowerFormalArguments_Darwin(
if (isVarArg) {
int Depth = ArgOffset;
VarArgsFrameIndex = MFI->CreateFixedObject(PtrVT.getSizeInBits()/8,
Depth, true, false);
SDValue FIN = DAG.getFrameIndex(VarArgsFrameIndex, PtrVT);
FuncInfo->setVarArgsFrameIndex(
MFI->CreateFixedObject(PtrVT.getSizeInBits()/8,
Depth, true, false));
SDValue FIN = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(), PtrVT);
// If this function is vararg, store any remaining integer argument regs
// to their spots on the stack so that they may be loaded by deferencing the
@ -4373,12 +4376,10 @@ SDValue PPCTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
case ISD::SETCC: return LowerSETCC(Op, DAG);
case ISD::TRAMPOLINE: return LowerTRAMPOLINE(Op, DAG);
case ISD::VASTART:
return LowerVASTART(Op, DAG, VarArgsFrameIndex, VarArgsStackOffset,
VarArgsNumGPR, VarArgsNumFPR, PPCSubTarget);
return LowerVASTART(Op, DAG, PPCSubTarget);
case ISD::VAARG:
return LowerVAARG(Op, DAG, VarArgsFrameIndex, VarArgsStackOffset,
VarArgsNumGPR, VarArgsNumFPR, PPCSubTarget);
return LowerVAARG(Op, DAG, PPCSubTarget);
case ISD::STACKRESTORE: return LowerSTACKRESTORE(Op, DAG, PPCSubTarget);
case ISD::DYNAMIC_STACKALLOC: