#include "SparcISelLowering.h"
#include "SparcTargetMachine.h"
+#include "SparcMachineFunctionInfo.h"
+#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
+#include "llvm/Module.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+#include "llvm/ADT/VectorExtras.h"
+#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
// Calling Convention Implementation
//===----------------------------------------------------------------------===//
+static bool CC_Sparc_Assign_SRet(unsigned &ValNo, MVT &ValVT,
+ MVT &LocVT, CCValAssign::LocInfo &LocInfo,
+ ISD::ArgFlagsTy &ArgFlags, CCState &State)
+{
+ assert (ArgFlags.isSRet());
+
+ //Assign SRet argument
+ State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT,
+ 0,
+ LocVT, LocInfo));
+ return true;
+}
+
+static bool CC_Sparc_Assign_f64(unsigned &ValNo, MVT &ValVT,
+ MVT &LocVT, CCValAssign::LocInfo &LocInfo,
+ ISD::ArgFlagsTy &ArgFlags, CCState &State)
+{
+ static const unsigned RegList[] = {
+ SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5
+ };
+ //Try to get first reg
+ if (unsigned Reg = State.AllocateReg(RegList, 6)) {
+ State.addLoc(CCValAssign::getCustomReg(ValNo, ValVT, Reg, LocVT, LocInfo));
+ } else {
+ //Assign whole thing in stack
+ State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT,
+ State.AllocateStack(8,4),
+ LocVT, LocInfo));
+ return true;
+ }
+
+ //Try to get second reg
+ if (unsigned Reg = State.AllocateReg(RegList, 6))
+ State.addLoc(CCValAssign::getCustomReg(ValNo, ValVT, Reg, LocVT, LocInfo));
+ else
+ State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT,
+ State.AllocateStack(4,4),
+ LocVT, LocInfo));
+ return true;
+}
+
#include "SparcGenCallingConv.inc"
-static SDOperand LowerRET(SDOperand Op, SelectionDAG &DAG) {
+SDValue
+SparcTargetLowering::LowerReturn(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ DebugLoc dl, SelectionDAG &DAG) const {
+
+ MachineFunction &MF = DAG.getMachineFunction();
+
// CCValAssign - represent the assignment of the return value to locations.
SmallVector<CCValAssign, 16> RVLocs;
- unsigned CC = DAG.getMachineFunction().getFunction()->getCallingConv();
- bool isVarArg = DAG.getMachineFunction().getFunction()->isVarArg();
-
+
// CCState - Info about the registers and stack slot.
- CCState CCInfo(CC, isVarArg, DAG.getTarget(), RVLocs);
-
- // Analize return values of ISD::RET
- CCInfo.AnalyzeReturn(Op.Val, RetCC_Sparc32);
-
+ CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
+ DAG.getTarget(), RVLocs, *DAG.getContext());
+
+ // Analize return values.
+ CCInfo.AnalyzeReturn(Outs, RetCC_Sparc32);
+
// If this is the first return lowered for this function, add the regs to the
// liveout set for the function.
- if (DAG.getMachineFunction().getRegInfo().liveout_empty()) {
+ if (MF.getRegInfo().liveout_empty()) {
for (unsigned i = 0; i != RVLocs.size(); ++i)
if (RVLocs[i].isRegLoc())
- DAG.getMachineFunction().getRegInfo().addLiveOut(RVLocs[i].getLocReg());
+ MF.getRegInfo().addLiveOut(RVLocs[i].getLocReg());
}
-
- SDOperand Chain = Op.getOperand(0);
- SDOperand Flag;
+
+ SDValue Flag;
// Copy the result values into the output registers.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
CCValAssign &VA = RVLocs[i];
assert(VA.isRegLoc() && "Can only return in registers!");
-
- // ISD::RET => ret chain, (regnum1,val1), ...
- // So i*2+1 index only the regnums.
- Chain = DAG.getCopyToReg(Chain, VA.getLocReg(), Op.getOperand(i*2+1), Flag);
-
+
+ Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(),
+ OutVals[i], Flag);
+
// Guarantee that all emitted copies are stuck together with flags.
Flag = Chain.getValue(1);
}
-
- if (Flag.Val)
- return DAG.getNode(SPISD::RET_FLAG, MVT::Other, Chain, Flag);
- return DAG.getNode(SPISD::RET_FLAG, MVT::Other, Chain);
+
+ unsigned RetAddrOffset = 8; //Call Inst + Delay Slot
+ // If the function returns a struct, copy the SRetReturnReg to I0
+ if (MF.getFunction()->hasStructRetAttr()) {
+ SparcMachineFunctionInfo *SFI = MF.getInfo<SparcMachineFunctionInfo>();
+ unsigned Reg = SFI->getSRetReturnReg();
+ if (!Reg)
+ llvm_unreachable("sret virtual register not created in the entry block");
+ SDValue Val = DAG.getCopyFromReg(Chain, dl, Reg, getPointerTy());
+ Chain = DAG.getCopyToReg(Chain, dl, SP::I0, Val, Flag);
+ Flag = Chain.getValue(1);
+ if (MF.getRegInfo().liveout_empty())
+ MF.getRegInfo().addLiveOut(SP::I0);
+ RetAddrOffset = 12; // CallInst + Delay Slot + Unimp
+ }
+
+ SDValue RetAddrOffsetNode = DAG.getConstant(RetAddrOffset, MVT::i32);
+
+ if (Flag.getNode())
+ return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain,
+ RetAddrOffsetNode, Flag);
+ return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain,
+ RetAddrOffsetNode);
}
-/// LowerArguments - V8 uses a very simple ABI, where all values are passed in
-/// either one or two GPRs, including FP values. TODO: we should pass FP values
-/// in FP registers for fastcc functions.
-std::vector<SDOperand>
-SparcTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
+/// LowerFormalArguments - V8 uses a very simple ABI, where all values are
+/// passed in either one or two GPRs, including FP values. TODO: we should
+/// pass FP values in FP registers for fastcc functions.
+SDValue
+SparcTargetLowering::LowerFormalArguments(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg>
+ &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals)
+ const {
+
MachineFunction &MF = DAG.getMachineFunction();
MachineRegisterInfo &RegInfo = MF.getRegInfo();
- std::vector<SDOperand> ArgValues;
-
- static const unsigned ArgRegs[] = {
- SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5
- };
-
- const unsigned *CurArgReg = ArgRegs, *ArgRegEnd = ArgRegs+6;
- unsigned ArgOffset = 68;
-
- SDOperand Root = DAG.getRoot();
- std::vector<SDOperand> OutChains;
-
- for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; ++I) {
- MVT::ValueType ObjectVT = getValueType(I->getType());
-
- switch (ObjectVT) {
- default: assert(0 && "Unhandled argument type!");
- case MVT::i1:
- case MVT::i8:
- case MVT::i16:
- case MVT::i32:
- if (I->use_empty()) { // Argument is dead.
- if (CurArgReg < ArgRegEnd) ++CurArgReg;
- ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT));
- } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR
- unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
- MF.getRegInfo().addLiveIn(*CurArgReg++, VReg);
- SDOperand Arg = DAG.getCopyFromReg(Root, VReg, MVT::i32);
- if (ObjectVT != MVT::i32) {
- unsigned AssertOp = ISD::AssertSext;
- Arg = DAG.getNode(AssertOp, MVT::i32, Arg,
- DAG.getValueType(ObjectVT));
- Arg = DAG.getNode(ISD::TRUNCATE, ObjectVT, Arg);
- }
- ArgValues.push_back(Arg);
- } else {
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset);
- SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
- SDOperand Load;
- if (ObjectVT == MVT::i32) {
- Load = DAG.getLoad(MVT::i32, Root, FIPtr, NULL, 0);
+ SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>();
+
+ // Assign locations to all of the incoming arguments.
+ SmallVector<CCValAssign, 16> ArgLocs;
+ CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
+ getTargetMachine(), ArgLocs, *DAG.getContext());
+ CCInfo.AnalyzeFormalArguments(Ins, CC_Sparc32);
+
+ const unsigned StackOffset = 92;
+
+ for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
+ CCValAssign &VA = ArgLocs[i];
+
+ if (i == 0 && Ins[i].Flags.isSRet()) {
+ //Get SRet from [%fp+64]
+ int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, 64, true);
+ SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
+ SDValue Arg = DAG.getLoad(MVT::i32, dl, Chain, FIPtr,
+ MachinePointerInfo(),
+ false, false, 0);
+ InVals.push_back(Arg);
+ continue;
+ }
+
+ if (VA.isRegLoc()) {
+ if (VA.needsCustom()) {
+ assert(VA.getLocVT() == MVT::f64);
+ unsigned VRegHi = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
+ MF.getRegInfo().addLiveIn(VA.getLocReg(), VRegHi);
+ SDValue HiVal = DAG.getCopyFromReg(Chain, dl, VRegHi, MVT::i32);
+
+ assert(i+1 < e);
+ CCValAssign &NextVA = ArgLocs[++i];
+
+ SDValue LoVal;
+ if (NextVA.isMemLoc()) {
+ int FrameIdx = MF.getFrameInfo()->
+ CreateFixedObject(4, StackOffset+NextVA.getLocMemOffset(),true);
+ SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
+ LoVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr,
+ MachinePointerInfo(),
+ false, false, 0);
} else {
- ISD::LoadExtType LoadOp = ISD::SEXTLOAD;
-
- // Sparc is big endian, so add an offset based on the ObjectVT.
- unsigned Offset = 4-std::max(1U, MVT::getSizeInBits(ObjectVT)/8);
- FIPtr = DAG.getNode(ISD::ADD, MVT::i32, FIPtr,
- DAG.getConstant(Offset, MVT::i32));
- Load = DAG.getExtLoad(LoadOp, MVT::i32, Root, FIPtr,
- NULL, 0, ObjectVT);
- Load = DAG.getNode(ISD::TRUNCATE, ObjectVT, Load);
+ unsigned loReg = MF.addLiveIn(NextVA.getLocReg(),
+ &SP::IntRegsRegClass);
+ LoVal = DAG.getCopyFromReg(Chain, dl, loReg, MVT::i32);
}
- ArgValues.push_back(Load);
+ SDValue WholeValue =
+ DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, LoVal, HiVal);
+ WholeValue = DAG.getNode(ISD::BITCAST, dl, MVT::f64, WholeValue);
+ InVals.push_back(WholeValue);
+ continue;
}
-
- ArgOffset += 4;
- break;
- case MVT::f32:
- if (I->use_empty()) { // Argument is dead.
- if (CurArgReg < ArgRegEnd) ++CurArgReg;
- ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT));
- } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR
- // FP value is passed in an integer register.
- unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
- MF.getRegInfo().addLiveIn(*CurArgReg++, VReg);
- SDOperand Arg = DAG.getCopyFromReg(Root, VReg, MVT::i32);
-
- Arg = DAG.getNode(ISD::BIT_CONVERT, MVT::f32, Arg);
- ArgValues.push_back(Arg);
- } else {
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset);
- SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
- SDOperand Load = DAG.getLoad(MVT::f32, Root, FIPtr, NULL, 0);
- ArgValues.push_back(Load);
+ unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
+ MF.getRegInfo().addLiveIn(VA.getLocReg(), VReg);
+ SDValue Arg = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i32);
+ if (VA.getLocVT() == MVT::f32)
+ Arg = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Arg);
+ else if (VA.getLocVT() != MVT::i32) {
+ Arg = DAG.getNode(ISD::AssertSext, dl, MVT::i32, Arg,
+ DAG.getValueType(VA.getLocVT()));
+ Arg = DAG.getNode(ISD::TRUNCATE, dl, VA.getLocVT(), Arg);
}
- ArgOffset += 4;
- break;
+ InVals.push_back(Arg);
+ continue;
+ }
- case MVT::i64:
- case MVT::f64:
- if (I->use_empty()) { // Argument is dead.
- if (CurArgReg < ArgRegEnd) ++CurArgReg;
- if (CurArgReg < ArgRegEnd) ++CurArgReg;
- ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT));
- } else {
- SDOperand HiVal;
- if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR
- unsigned VRegHi = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
- MF.getRegInfo().addLiveIn(*CurArgReg++, VRegHi);
- HiVal = DAG.getCopyFromReg(Root, VRegHi, MVT::i32);
- } else {
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset);
- SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
- HiVal = DAG.getLoad(MVT::i32, Root, FIPtr, NULL, 0);
- }
-
- SDOperand LoVal;
- if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR
- unsigned VRegLo = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
- MF.getRegInfo().addLiveIn(*CurArgReg++, VRegLo);
- LoVal = DAG.getCopyFromReg(Root, VRegLo, MVT::i32);
- } else {
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset+4);
- SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
- LoVal = DAG.getLoad(MVT::i32, Root, FIPtr, NULL, 0);
- }
-
- // Compose the two halves together into an i64 unit.
- SDOperand WholeValue =
- DAG.getNode(ISD::BUILD_PAIR, MVT::i64, LoVal, HiVal);
-
- // If we want a double, do a bit convert.
- if (ObjectVT == MVT::f64)
- WholeValue = DAG.getNode(ISD::BIT_CONVERT, MVT::f64, WholeValue);
-
- ArgValues.push_back(WholeValue);
+ assert(VA.isMemLoc());
+
+ unsigned Offset = VA.getLocMemOffset()+StackOffset;
+
+ if (VA.needsCustom()) {
+ assert(VA.getValVT() == MVT::f64);
+ //If it is double-word aligned, just load.
+ if (Offset % 8 == 0) {
+ int FI = MF.getFrameInfo()->CreateFixedObject(8,
+ Offset,
+ true);
+ SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue Load = DAG.getLoad(VA.getValVT(), dl, Chain, FIPtr,
+ MachinePointerInfo(),
+ false,false, 0);
+ InVals.push_back(Load);
+ continue;
}
- ArgOffset += 8;
- break;
+
+ int FI = MF.getFrameInfo()->CreateFixedObject(4,
+ Offset,
+ true);
+ SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue HiVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr,
+ MachinePointerInfo(),
+ false, false, 0);
+ int FI2 = MF.getFrameInfo()->CreateFixedObject(4,
+ Offset+4,
+ true);
+ SDValue FIPtr2 = DAG.getFrameIndex(FI2, getPointerTy());
+
+ SDValue LoVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr2,
+ MachinePointerInfo(),
+ false, false, 0);
+
+ SDValue WholeValue =
+ DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, LoVal, HiVal);
+ WholeValue = DAG.getNode(ISD::BITCAST, dl, MVT::f64, WholeValue);
+ InVals.push_back(WholeValue);
+ continue;
+ }
+
+ int FI = MF.getFrameInfo()->CreateFixedObject(4,
+ Offset,
+ true);
+ SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue Load ;
+ if (VA.getValVT() == MVT::i32 || VA.getValVT() == MVT::f32) {
+ Load = DAG.getLoad(VA.getValVT(), dl, Chain, FIPtr,
+ MachinePointerInfo(),
+ false, false, 0);
+ } else {
+ ISD::LoadExtType LoadOp = ISD::SEXTLOAD;
+ // Sparc is big endian, so add an offset based on the ObjectVT.
+ unsigned Offset = 4-std::max(1U, VA.getValVT().getSizeInBits()/8);
+ FIPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, FIPtr,
+ DAG.getConstant(Offset, MVT::i32));
+ Load = DAG.getExtLoad(LoadOp, dl, MVT::i32, Chain, FIPtr,
+ MachinePointerInfo(),
+ VA.getValVT(), false, false,0);
+ Load = DAG.getNode(ISD::TRUNCATE, dl, VA.getValVT(), Load);
+ }
+ InVals.push_back(Load);
+ }
+
+ if (MF.getFunction()->hasStructRetAttr()) {
+ //Copy the SRet Argument to SRetReturnReg
+ SparcMachineFunctionInfo *SFI = MF.getInfo<SparcMachineFunctionInfo>();
+ unsigned Reg = SFI->getSRetReturnReg();
+ if (!Reg) {
+ Reg = MF.getRegInfo().createVirtualRegister(&SP::IntRegsRegClass);
+ SFI->setSRetReturnReg(Reg);
}
+ SDValue Copy = DAG.getCopyToReg(DAG.getEntryNode(), dl, Reg, InVals[0]);
+ Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Copy, Chain);
}
-
+
// Store remaining ArgRegs to the stack if this is a varargs function.
- if (F.isVarArg()) {
+ if (isVarArg) {
+ static const unsigned ArgRegs[] = {
+ SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5
+ };
+ unsigned NumAllocated = CCInfo.getFirstUnallocated(ArgRegs, 6);
+ const unsigned *CurArgReg = ArgRegs+NumAllocated, *ArgRegEnd = ArgRegs+6;
+ unsigned ArgOffset = CCInfo.getNextStackOffset();
+ if (NumAllocated == 6)
+ ArgOffset += StackOffset;
+ else {
+ assert(!ArgOffset);
+ ArgOffset = 68+4*NumAllocated;
+ }
+
// Remember the vararg offset for the va_start implementation.
- VarArgsFrameOffset = ArgOffset;
-
+ FuncInfo->setVarArgsFrameOffset(ArgOffset);
+
+ std::vector<SDValue> OutChains;
+
for (; CurArgReg != ArgRegEnd; ++CurArgReg) {
unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
MF.getRegInfo().addLiveIn(*CurArgReg, VReg);
- SDOperand Arg = DAG.getCopyFromReg(DAG.getRoot(), VReg, MVT::i32);
+ SDValue Arg = DAG.getCopyFromReg(DAG.getRoot(), dl, VReg, MVT::i32);
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset);
- SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
+ int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset,
+ true);
+ SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32);
- OutChains.push_back(DAG.getStore(DAG.getRoot(), Arg, FIPtr, NULL, 0));
+ OutChains.push_back(DAG.getStore(DAG.getRoot(), dl, Arg, FIPtr,
+ MachinePointerInfo(),
+ false, false, 0));
ArgOffset += 4;
}
+
+ if (!OutChains.empty()) {
+ OutChains.push_back(Chain);
+ Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other,
+ &OutChains[0], OutChains.size());
+ }
}
-
- if (!OutChains.empty())
- DAG.setRoot(DAG.getNode(ISD::TokenFactor, MVT::Other,
- &OutChains[0], OutChains.size()));
-
- return ArgValues;
+
+ return Chain;
}
-static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) {
- unsigned CallingConv = cast<ConstantSDNode>(Op.getOperand(1))->getValue();
- SDOperand Chain = Op.getOperand(0);
- SDOperand Callee = Op.getOperand(4);
- bool isVarArg = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
+SDValue
+SparcTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
+ CallingConv::ID CallConv, bool isVarArg,
+ bool &isTailCall,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const {
+ // Sparc target does not yet support tail call optimization.
+ isTailCall = false;
-#if 0
// Analyze operands of the call, assigning locations to each operand.
SmallVector<CCValAssign, 16> ArgLocs;
- CCState CCInfo(CallingConv, isVarArg, DAG.getTarget(), ArgLocs);
- CCInfo.AnalyzeCallOperands(Op.Val, CC_Sparc32);
-
+ CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
+ DAG.getTarget(), ArgLocs, *DAG.getContext());
+ CCInfo.AnalyzeCallOperands(Outs, CC_Sparc32);
+
// Get the size of the outgoing arguments stack space requirement.
unsigned ArgsSize = CCInfo.getNextStackOffset();
- // FIXME: We can't use this until f64 is known to take two GPRs.
-#else
- (void)CC_Sparc32;
-
- // Count the size of the outgoing arguments.
- unsigned ArgsSize = 0;
- for (unsigned i = 5, e = Op.getNumOperands(); i != e; i += 2) {
- switch (Op.getOperand(i).getValueType()) {
- default: assert(0 && "Unknown value type!");
- case MVT::i1:
- case MVT::i8:
- case MVT::i16:
- case MVT::i32:
- case MVT::f32:
- ArgsSize += 4;
- break;
- case MVT::i64:
- case MVT::f64:
- ArgsSize += 8;
- break;
- }
- }
- if (ArgsSize > 4*6)
- ArgsSize -= 4*6; // Space for first 6 arguments is prereserved.
- else
- ArgsSize = 0;
-#endif
-
+
// Keep stack frames 8-byte aligned.
ArgsSize = (ArgsSize+7) & ~7;
- Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize));
-
- SmallVector<std::pair<unsigned, SDOperand>, 8> RegsToPass;
- SmallVector<SDOperand, 8> MemOpChains;
-
-#if 0
+ MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+
+ //Create local copies for byval args.
+ SmallVector<SDValue, 8> ByValArgs;
+ for (unsigned i = 0, e = Outs.size(); i != e; ++i) {
+ ISD::ArgFlagsTy Flags = Outs[i].Flags;
+ if (!Flags.isByVal())
+ continue;
+
+ SDValue Arg = OutVals[i];
+ unsigned Size = Flags.getByValSize();
+ unsigned Align = Flags.getByValAlign();
+
+ int FI = MFI->CreateStackObject(Size, Align, false);
+ SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue SizeNode = DAG.getConstant(Size, MVT::i32);
+
+ Chain = DAG.getMemcpy(Chain, dl, FIPtr, Arg, SizeNode, Align,
+ false, //isVolatile,
+ (Size <= 32), //AlwaysInline if size <= 32
+ MachinePointerInfo(), MachinePointerInfo());
+ ByValArgs.push_back(FIPtr);
+ }
+
+ Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true));
+
+ SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
+ SmallVector<SDValue, 8> MemOpChains;
+
+ const unsigned StackOffset = 92;
+ bool hasStructRetAttr = false;
// Walk the register/memloc assignments, inserting copies/loads.
- for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
+ for (unsigned i = 0, realArgIdx = 0, byvalArgIdx = 0, e = ArgLocs.size();
+ i != e;
+ ++i, ++realArgIdx) {
CCValAssign &VA = ArgLocs[i];
-
- // Arguments start after the 5 first operands of ISD::CALL
- SDOperand Arg = Op.getOperand(5+2*VA.getValNo());
+ SDValue Arg = OutVals[realArgIdx];
+
+ ISD::ArgFlagsTy Flags = Outs[realArgIdx].Flags;
+
+ //Use local copy if it is a byval arg.
+ if (Flags.isByVal())
+ Arg = ByValArgs[byvalArgIdx++];
// Promote the value if needed.
switch (VA.getLocInfo()) {
- default: assert(0 && "Unknown loc info!");
+ default: llvm_unreachable("Unknown loc info!");
case CCValAssign::Full: break;
case CCValAssign::SExt:
- Arg = DAG.getNode(ISD::SIGN_EXTEND, VA.getLocVT(), Arg);
+ Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, VA.getLocVT(), Arg);
break;
case CCValAssign::ZExt:
- Arg = DAG.getNode(ISD::ZERO_EXTEND, VA.getLocVT(), Arg);
+ Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, VA.getLocVT(), Arg);
break;
case CCValAssign::AExt:
- Arg = DAG.getNode(ISD::ANY_EXTEND, VA.getLocVT(), Arg);
+ Arg = DAG.getNode(ISD::ANY_EXTEND, dl, VA.getLocVT(), Arg);
+ break;
+ case CCValAssign::BCvt:
+ Arg = DAG.getNode(ISD::BITCAST, dl, VA.getLocVT(), Arg);
break;
}
-
- // Arguments that can be passed on register must be kept at
- // RegsToPass vector
- if (VA.isRegLoc()) {
- RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
+
+ if (Flags.isSRet()) {
+ assert(VA.needsCustom());
+ // store SRet argument in %sp+64
+ SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);
+ SDValue PtrOff = DAG.getIntPtrConstant(64);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
+ hasStructRetAttr = true;
continue;
}
-
- assert(VA.isMemLoc());
-
- // Create a store off the stack pointer for this argument.
- SDOperand StackPtr = DAG.getRegister(SP::O6, MVT::i32);
- // FIXME: VERIFY THAT 68 IS RIGHT.
- SDOperand PtrOff = DAG.getIntPtrConstant(VA.getLocMemOffset()+68);
- PtrOff = DAG.getNode(ISD::ADD, MVT::i32, StackPtr, PtrOff);
- MemOpChains.push_back(DAG.getStore(Chain, Arg, PtrOff, NULL, 0));
- }
-
-#else
- static const unsigned ArgRegs[] = {
- SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5
- };
- unsigned ArgOffset = 68;
-
- for (unsigned i = 5, e = Op.getNumOperands(); i != e; i += 2) {
- SDOperand Val = Op.getOperand(i);
- MVT::ValueType ObjectVT = Val.getValueType();
- SDOperand ValToStore(0, 0);
- unsigned ObjSize;
- switch (ObjectVT) {
- default: assert(0 && "Unhandled argument type!");
- case MVT::i32:
- ObjSize = 4;
-
- if (RegsToPass.size() >= 6) {
- ValToStore = Val;
- } else {
- RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Val));
- }
- break;
- case MVT::f32:
- ObjSize = 4;
- if (RegsToPass.size() >= 6) {
- ValToStore = Val;
- } else {
- // Convert this to a FP value in an int reg.
- Val = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, Val);
- RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Val));
- }
- break;
- 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:
- ObjSize = 8;
- if (RegsToPass.size() >= 6) {
- ValToStore = Val; // Whole thing is passed in memory.
- break;
+
+ if (VA.needsCustom()) {
+ assert(VA.getLocVT() == MVT::f64);
+
+ if (VA.isMemLoc()) {
+ unsigned Offset = VA.getLocMemOffset() + StackOffset;
+ //if it is double-word aligned, just store.
+ if (Offset % 8 == 0) {
+ SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);
+ SDValue PtrOff = DAG.getIntPtrConstant(Offset);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
+ continue;
+ }
}
-
- // Split the value into top and bottom part. Top part goes in a reg.
- SDOperand Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Val,
- DAG.getConstant(1, MVT::i32));
- SDOperand Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Val,
- DAG.getConstant(0, MVT::i32));
- RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Hi));
-
- if (RegsToPass.size() >= 6) {
- ValToStore = Lo;
- ArgOffset += 4;
- ObjSize = 4;
+
+ SDValue StackPtr = DAG.CreateStackTemporary(MVT::f64, MVT::i32);
+ SDValue Store = DAG.getStore(DAG.getEntryNode(), dl,
+ Arg, StackPtr, MachinePointerInfo(),
+ false, false, 0);
+ // Sparc is big-endian, so the high part comes first.
+ SDValue Hi = DAG.getLoad(MVT::i32, dl, Store, StackPtr,
+ MachinePointerInfo(), false, false, 0);
+ // Increment the pointer to the other half.
+ StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr,
+ DAG.getIntPtrConstant(4));
+ // Load the low part.
+ SDValue Lo = DAG.getLoad(MVT::i32, dl, Store, StackPtr,
+ MachinePointerInfo(), false, false, 0);
+
+ if (VA.isRegLoc()) {
+ RegsToPass.push_back(std::make_pair(VA.getLocReg(), Hi));
+ assert(i+1 != e);
+ CCValAssign &NextVA = ArgLocs[++i];
+ if (NextVA.isRegLoc()) {
+ RegsToPass.push_back(std::make_pair(NextVA.getLocReg(), Lo));
+ } else {
+ //Store the low part in stack.
+ unsigned Offset = NextVA.getLocMemOffset() + StackOffset;
+ SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);
+ SDValue PtrOff = DAG.getIntPtrConstant(Offset);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Lo, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
+ }
} else {
- RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Lo));
+ unsigned Offset = VA.getLocMemOffset() + StackOffset;
+ // Store the high part.
+ SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);
+ SDValue PtrOff = DAG.getIntPtrConstant(Offset);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Hi, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
+ // Store the low part.
+ PtrOff = DAG.getIntPtrConstant(Offset+4);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Lo, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
}
- break;
+ continue;
}
-
- if (ValToStore.Val) {
- SDOperand StackPtr = DAG.getRegister(SP::O6, MVT::i32);
- SDOperand PtrOff = DAG.getConstant(ArgOffset, MVT::i32);
- PtrOff = DAG.getNode(ISD::ADD, MVT::i32, StackPtr, PtrOff);
- MemOpChains.push_back(DAG.getStore(Chain, ValToStore, PtrOff, NULL, 0));
+
+ // Arguments that can be passed on register must be kept at
+ // RegsToPass vector
+ if (VA.isRegLoc()) {
+ if (VA.getLocVT() != MVT::f32) {
+ RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
+ continue;
+ }
+ Arg = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Arg);
+ RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
+ continue;
}
- ArgOffset += ObjSize;
+
+ assert(VA.isMemLoc());
+
+ // Create a store off the stack pointer for this argument.
+ SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32);
+ SDValue PtrOff = DAG.getIntPtrConstant(VA.getLocMemOffset()+StackOffset);
+ PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff);
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff,
+ MachinePointerInfo(),
+ false, false, 0));
}
-#endif
-
+
+
// Emit all stores, make sure the occur before any copies into physregs.
if (!MemOpChains.empty())
- Chain = DAG.getNode(ISD::TokenFactor, MVT::Other,
+ Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other,
&MemOpChains[0], MemOpChains.size());
-
- // Build a sequence of copy-to-reg nodes chained together with token
+
+ // Build a sequence of copy-to-reg nodes chained together with token
// chain and flag operands which copy the outgoing args into registers.
- // The InFlag in necessary since all emited instructions must be
+ // The InFlag in necessary since all emitted instructions must be
// stuck together.
- SDOperand InFlag;
+ SDValue InFlag;
for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
unsigned Reg = RegsToPass[i].first;
// Remap I0->I7 -> O0->O7.
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg-SP::I0+SP::O0;
- Chain = DAG.getCopyToReg(Chain, Reg, RegsToPass[i].second, InFlag);
+ Chain = DAG.getCopyToReg(Chain, dl, Reg, RegsToPass[i].second, InFlag);
InFlag = Chain.getValue(1);
}
+ unsigned SRetArgSize = (hasStructRetAttr)? getSRetArgSize(DAG, Callee):0;
+
// If the callee is a GlobalAddress node (quite common, every direct call is)
// turn it into a TargetGlobalAddress node so that legalize doesn't hack it.
// Likewise ExternalSymbol -> TargetExternalSymbol.
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee))
- Callee = DAG.getTargetGlobalAddress(G->getGlobal(), MVT::i32);
+ Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, MVT::i32);
else if (ExternalSymbolSDNode *E = dyn_cast<ExternalSymbolSDNode>(Callee))
Callee = DAG.getTargetExternalSymbol(E->getSymbol(), MVT::i32);
- std::vector<MVT::ValueType> NodeTys;
- NodeTys.push_back(MVT::Other); // Returns a chain
- NodeTys.push_back(MVT::Flag); // Returns a flag for retval copy to use.
- SDOperand Ops[] = { Chain, Callee, InFlag };
- Chain = DAG.getNode(SPISD::CALL, NodeTys, Ops, InFlag.Val ? 3 : 2);
+ // Returns a chain & a flag for retval copy to use
+ SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
+ SmallVector<SDValue, 8> Ops;
+ Ops.push_back(Chain);
+ Ops.push_back(Callee);
+ if (hasStructRetAttr)
+ Ops.push_back(DAG.getTargetConstant(SRetArgSize, MVT::i32));
+ for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
+ unsigned Reg = RegsToPass[i].first;
+ if (Reg >= SP::I0 && Reg <= SP::I7)
+ Reg = Reg-SP::I0+SP::O0;
+
+ Ops.push_back(DAG.getRegister(Reg, RegsToPass[i].second.getValueType()));
+ }
+ if (InFlag.getNode())
+ Ops.push_back(InFlag);
+
+ Chain = DAG.getNode(SPISD::CALL, dl, NodeTys, &Ops[0], Ops.size());
InFlag = Chain.getValue(1);
-
- Chain = DAG.getCALLSEQ_END(Chain,
- DAG.getConstant(ArgsSize, MVT::i32),
- DAG.getConstant(0, MVT::i32), InFlag);
+
+ Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true),
+ DAG.getIntPtrConstant(0, true), InFlag);
InFlag = Chain.getValue(1);
-
+
// Assign locations to each value returned by this call.
SmallVector<CCValAssign, 16> RVLocs;
- CCState RVInfo(CallingConv, isVarArg, DAG.getTarget(), RVLocs);
-
- RVInfo.AnalyzeCallResult(Op.Val, RetCC_Sparc32);
- SmallVector<SDOperand, 8> ResultVals;
-
+ CCState RVInfo(CallConv, isVarArg, DAG.getMachineFunction(),
+ DAG.getTarget(), RVLocs, *DAG.getContext());
+
+ RVInfo.AnalyzeCallResult(Ins, RetCC_Sparc32);
+
// Copy all of the result registers out of their specified physreg.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
unsigned Reg = RVLocs[i].getLocReg();
-
+
// Remap I0->I7 -> O0->O7.
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg-SP::I0+SP::O0;
-
- Chain = DAG.getCopyFromReg(Chain, Reg,
+
+ Chain = DAG.getCopyFromReg(Chain, dl, Reg,
RVLocs[i].getValVT(), InFlag).getValue(1);
InFlag = Chain.getValue(2);
- ResultVals.push_back(Chain.getValue(0));
+ InVals.push_back(Chain.getValue(0));
}
-
- ResultVals.push_back(Chain);
-
- // Merge everything together with a MERGE_VALUES node.
- return DAG.getNode(ISD::MERGE_VALUES, Op.Val->getVTList(),
- &ResultVals[0], ResultVals.size());
+
+ return Chain;
}
+unsigned
+SparcTargetLowering::getSRetArgSize(SelectionDAG &DAG, SDValue Callee) const
+{
+ const Function *CalleeFn = 0;
+ if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
+ CalleeFn = dyn_cast<Function>(G->getGlobal());
+ } else if (ExternalSymbolSDNode *E =
+ dyn_cast<ExternalSymbolSDNode>(Callee)) {
+ const Function *Fn = DAG.getMachineFunction().getFunction();
+ const Module *M = Fn->getParent();
+ CalleeFn = M->getFunction(E->getSymbol());
+ }
+
+ if (!CalleeFn)
+ return 0;
+ assert(CalleeFn->hasStructRetAttr() &&
+ "Callee does not have the StructRet attribute.");
+
+ PointerType *Ty = cast<PointerType>(CalleeFn->arg_begin()->getType());
+ Type *ElementTy = Ty->getElementType();
+ return getTargetData()->getTypeAllocSize(ElementTy);
+}
//===----------------------------------------------------------------------===//
// TargetLowering Implementation
/// condition.
static SPCC::CondCodes IntCondCCodeToICC(ISD::CondCode CC) {
switch (CC) {
- default: assert(0 && "Unknown integer condition code!");
+ default: llvm_unreachable("Unknown integer condition code!");
case ISD::SETEQ: return SPCC::ICC_E;
case ISD::SETNE: return SPCC::ICC_NE;
case ISD::SETLT: return SPCC::ICC_L;
/// FCC condition.
static SPCC::CondCodes FPCondCCodeToFCC(ISD::CondCode CC) {
switch (CC) {
- default: assert(0 && "Unknown fp condition code!");
+ default: llvm_unreachable("Unknown fp condition code!");
case ISD::SETEQ:
case ISD::SETOEQ: return SPCC::FCC_E;
case ISD::SETNE:
}
}
-
SparcTargetLowering::SparcTargetLowering(TargetMachine &TM)
- : TargetLowering(TM) {
-
+ : TargetLowering(TM, new TargetLoweringObjectFileELF()) {
+
// Set up the register classes.
addRegisterClass(MVT::i32, SP::IntRegsRegisterClass);
addRegisterClass(MVT::f32, SP::FPRegsRegisterClass);
addRegisterClass(MVT::f64, SP::DFPRegsRegisterClass);
// Turn FP extload into load/fextend
- setLoadXAction(ISD::EXTLOAD, MVT::f32, Expand);
+ setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
// Sparc doesn't have i1 sign extending load
- setLoadXAction(ISD::SEXTLOAD, MVT::i1, Promote);
+ setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Promote);
// Turn FP truncstore into trunc + store.
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
setOperationAction(ISD::GlobalAddress, MVT::i32, Custom);
setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom);
setOperationAction(ISD::ConstantPool , MVT::i32, Custom);
-
+
// Sparc doesn't have sext_inreg, replace them with shl/sra
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Expand);
// Expand fp<->uint
setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand);
-
- setOperationAction(ISD::BIT_CONVERT, MVT::f32, Expand);
- setOperationAction(ISD::BIT_CONVERT, MVT::i32, Expand);
-
+
+ setOperationAction(ISD::BITCAST, MVT::f32, Expand);
+ setOperationAction(ISD::BITCAST, MVT::i32, Expand);
+
// Sparc has no select or setcc: expand to SELECT_CC.
setOperationAction(ISD::SELECT, MVT::i32, Expand);
setOperationAction(ISD::SELECT, MVT::f32, Expand);
setOperationAction(ISD::SETCC, MVT::i32, Expand);
setOperationAction(ISD::SETCC, MVT::f32, Expand);
setOperationAction(ISD::SETCC, MVT::f64, Expand);
-
+
// Sparc doesn't have BRCOND either, it has BR_CC.
setOperationAction(ISD::BRCOND, MVT::Other, Expand);
setOperationAction(ISD::BRIND, MVT::Other, Expand);
setOperationAction(ISD::BR_CC, MVT::i32, Custom);
setOperationAction(ISD::BR_CC, MVT::f32, Custom);
setOperationAction(ISD::BR_CC, MVT::f64, Custom);
-
+
setOperationAction(ISD::SELECT_CC, MVT::i32, Custom);
setOperationAction(ISD::SELECT_CC, MVT::f32, Custom);
setOperationAction(ISD::SELECT_CC, MVT::f64, Custom);
-
+
// SPARC has no intrinsics for these particular operations.
- setOperationAction(ISD::MEMMOVE, MVT::Other, Expand);
- setOperationAction(ISD::MEMSET, MVT::Other, Expand);
- setOperationAction(ISD::MEMCPY, MVT::Other, Expand);
setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
setOperationAction(ISD::FSIN , MVT::f64, Expand);
setOperationAction(ISD::FCOS , MVT::f64, Expand);
setOperationAction(ISD::FREM , MVT::f64, Expand);
+ setOperationAction(ISD::FMA , MVT::f64, Expand);
setOperationAction(ISD::FSIN , MVT::f32, Expand);
setOperationAction(ISD::FCOS , MVT::f32, Expand);
setOperationAction(ISD::FREM , MVT::f32, Expand);
+ setOperationAction(ISD::FMA , MVT::f32, Expand);
setOperationAction(ISD::CTPOP, MVT::i32, Expand);
setOperationAction(ISD::CTTZ , MVT::i32, Expand);
setOperationAction(ISD::CTLZ , MVT::i32, Expand);
// FIXME: Sparc provides these multiplies, but we don't have them yet.
setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
-
- // We don't have line number support yet.
- setOperationAction(ISD::LOCATION, MVT::Other, Expand);
- setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
- setOperationAction(ISD::LABEL, MVT::Other, Expand);
+ setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
- // RET must be custom lowered, to meet ABI requirements
- setOperationAction(ISD::RET , MVT::Other, Custom);
+ setOperationAction(ISD::EH_LABEL, MVT::Other, Expand);
// VASTART needs to be custom lowered to use the VarArgsFrameIndex.
setOperationAction(ISD::VASTART , MVT::Other, Custom);
// VAARG needs to be lowered to not do unaligned accesses for doubles.
setOperationAction(ISD::VAARG , MVT::Other, Custom);
-
+
// Use the default implementation.
setOperationAction(ISD::VACOPY , MVT::Other, Expand);
setOperationAction(ISD::VAEND , MVT::Other, Expand);
- setOperationAction(ISD::STACKSAVE , MVT::Other, Expand);
+ setOperationAction(ISD::STACKSAVE , MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand);
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom);
// No debug info support yet.
- setOperationAction(ISD::LOCATION, MVT::Other, Expand);
- setOperationAction(ISD::LABEL, MVT::Other, Expand);
- setOperationAction(ISD::DECLARE, MVT::Other, Expand);
-
+ setOperationAction(ISD::EH_LABEL, MVT::Other, Expand);
+
setStackPointerRegisterToSaveRestore(SP::O6);
if (TM.getSubtarget<SparcSubtarget>().isV9())
setOperationAction(ISD::CTPOP, MVT::i32, Legal);
-
+
+ setMinFunctionAlignment(2);
+
computeRegisterProperties();
}
case SPISD::ITOF: return "SPISD::ITOF";
case SPISD::CALL: return "SPISD::CALL";
case SPISD::RET_FLAG: return "SPISD::RET_FLAG";
+ case SPISD::GLOBAL_BASE_REG: return "SPISD::GLOBAL_BASE_REG";
+ case SPISD::FLUSHW: return "SPISD::FLUSHW";
}
}
/// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to
/// be zero. Op is expected to be a target specific node. Used by DAG
/// combiner.
-void SparcTargetLowering::computeMaskedBitsForTargetNode(const SDOperand Op,
+void SparcTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op,
const APInt &Mask,
- APInt &KnownZero,
+ APInt &KnownZero,
APInt &KnownOne,
const SelectionDAG &DAG,
unsigned Depth) const {
APInt KnownZero2, KnownOne2;
KnownZero = KnownOne = APInt(Mask.getBitWidth(), 0); // Don't know anything.
-
+
switch (Op.getOpcode()) {
default: break;
case SPISD::SELECT_ICC:
Depth+1);
DAG.ComputeMaskedBits(Op.getOperand(0), Mask, KnownZero2, KnownOne2,
Depth+1);
- assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
- assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
-
+ assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
+ assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
+
// Only known if known in both the LHS and RHS.
KnownOne &= KnownOne2;
KnownZero &= KnownZero2;
// Look at LHS/RHS/CC and see if they are a lowered setcc instruction. If so
// set LHS/RHS and SPCC to the LHS/RHS of the setcc and SPCC to the condition.
-static void LookThroughSetCC(SDOperand &LHS, SDOperand &RHS,
+static void LookThroughSetCC(SDValue &LHS, SDValue &RHS,
ISD::CondCode CC, unsigned &SPCC) {
- if (isa<ConstantSDNode>(RHS) && cast<ConstantSDNode>(RHS)->getValue() == 0 &&
- CC == ISD::SETNE &&
+ if (isa<ConstantSDNode>(RHS) &&
+ cast<ConstantSDNode>(RHS)->isNullValue() &&
+ CC == ISD::SETNE &&
((LHS.getOpcode() == SPISD::SELECT_ICC &&
LHS.getOperand(3).getOpcode() == SPISD::CMPICC) ||
(LHS.getOpcode() == SPISD::SELECT_FCC &&
LHS.getOperand(3).getOpcode() == SPISD::CMPFCC)) &&
isa<ConstantSDNode>(LHS.getOperand(0)) &&
isa<ConstantSDNode>(LHS.getOperand(1)) &&
- cast<ConstantSDNode>(LHS.getOperand(0))->getValue() == 1 &&
- cast<ConstantSDNode>(LHS.getOperand(1))->getValue() == 0) {
- SDOperand CMPCC = LHS.getOperand(3);
- SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getValue();
+ cast<ConstantSDNode>(LHS.getOperand(0))->isOne() &&
+ cast<ConstantSDNode>(LHS.getOperand(1))->isNullValue()) {
+ SDValue CMPCC = LHS.getOperand(3);
+ SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getZExtValue();
LHS = CMPCC.getOperand(0);
RHS = CMPCC.getOperand(1);
}
}
-static SDOperand LowerGLOBALADDRESS(SDOperand Op, SelectionDAG &DAG) {
- GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
- SDOperand GA = DAG.getTargetGlobalAddress(GV, MVT::i32);
- SDOperand Hi = DAG.getNode(SPISD::Hi, MVT::i32, GA);
- SDOperand Lo = DAG.getNode(SPISD::Lo, MVT::i32, GA);
- return DAG.getNode(ISD::ADD, MVT::i32, Lo, Hi);
+SDValue SparcTargetLowering::LowerGlobalAddress(SDValue Op,
+ SelectionDAG &DAG) const {
+ const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
+ // FIXME there isn't really any debug info here
+ DebugLoc dl = Op.getDebugLoc();
+ SDValue GA = DAG.getTargetGlobalAddress(GV, dl, MVT::i32);
+ SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, GA);
+ SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, GA);
+
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_)
+ return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi);
+
+ SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl,
+ getPointerTy());
+ SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi);
+ SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32,
+ GlobalBase, RelAddr);
+ return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(),
+ AbsAddr, MachinePointerInfo(), false, false, 0);
}
-static SDOperand LowerCONSTANTPOOL(SDOperand Op, SelectionDAG &DAG) {
+SDValue SparcTargetLowering::LowerConstantPool(SDValue Op,
+ SelectionDAG &DAG) const {
ConstantPoolSDNode *N = cast<ConstantPoolSDNode>(Op);
- Constant *C = N->getConstVal();
- SDOperand CP = DAG.getTargetConstantPool(C, MVT::i32, N->getAlignment());
- SDOperand Hi = DAG.getNode(SPISD::Hi, MVT::i32, CP);
- SDOperand Lo = DAG.getNode(SPISD::Lo, MVT::i32, CP);
- return DAG.getNode(ISD::ADD, MVT::i32, Lo, Hi);
+ // FIXME there isn't really any debug info here
+ DebugLoc dl = Op.getDebugLoc();
+ const Constant *C = N->getConstVal();
+ SDValue CP = DAG.getTargetConstantPool(C, MVT::i32, N->getAlignment());
+ SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, CP);
+ SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, CP);
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_)
+ return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi);
+
+ SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl,
+ getPointerTy());
+ SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi);
+ SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32,
+ GlobalBase, RelAddr);
+ return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(),
+ AbsAddr, MachinePointerInfo(), false, false, 0);
}
-static SDOperand LowerFP_TO_SINT(SDOperand Op, SelectionDAG &DAG) {
+static SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) {
+ DebugLoc dl = Op.getDebugLoc();
// Convert the fp value to integer in an FP register.
assert(Op.getValueType() == MVT::i32);
- Op = DAG.getNode(SPISD::FTOI, MVT::f32, Op.getOperand(0));
- return DAG.getNode(ISD::BIT_CONVERT, MVT::i32, Op);
+ Op = DAG.getNode(SPISD::FTOI, dl, MVT::f32, Op.getOperand(0));
+ return DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op);
}
-static SDOperand LowerSINT_TO_FP(SDOperand Op, SelectionDAG &DAG) {
+static SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) {
+ DebugLoc dl = Op.getDebugLoc();
assert(Op.getOperand(0).getValueType() == MVT::i32);
- SDOperand Tmp = DAG.getNode(ISD::BIT_CONVERT, MVT::f32, Op.getOperand(0));
+ SDValue Tmp = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Op.getOperand(0));
// Convert the int value to FP in an FP register.
- return DAG.getNode(SPISD::ITOF, Op.getValueType(), Tmp);
+ return DAG.getNode(SPISD::ITOF, dl, Op.getValueType(), Tmp);
}
-static SDOperand LowerBR_CC(SDOperand Op, SelectionDAG &DAG) {
- SDOperand Chain = Op.getOperand(0);
+static SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) {
+ SDValue Chain = Op.getOperand(0);
ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get();
- SDOperand LHS = Op.getOperand(2);
- SDOperand RHS = Op.getOperand(3);
- SDOperand Dest = Op.getOperand(4);
+ SDValue LHS = Op.getOperand(2);
+ SDValue RHS = Op.getOperand(3);
+ SDValue Dest = Op.getOperand(4);
+ DebugLoc dl = Op.getDebugLoc();
unsigned Opc, SPCC = ~0U;
-
+
// If this is a br_cc of a "setcc", and if the setcc got lowered into
// an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values.
LookThroughSetCC(LHS, RHS, CC, SPCC);
-
+
// Get the condition flag.
- SDOperand CompareFlag;
+ SDValue CompareFlag;
if (LHS.getValueType() == MVT::i32) {
- std::vector<MVT::ValueType> VTs;
+ std::vector<EVT> VTs;
VTs.push_back(MVT::i32);
- VTs.push_back(MVT::Flag);
- SDOperand Ops[2] = { LHS, RHS };
- CompareFlag = DAG.getNode(SPISD::CMPICC, VTs, Ops, 2).getValue(1);
+ VTs.push_back(MVT::Glue);
+ SDValue Ops[2] = { LHS, RHS };
+ CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1);
if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC);
Opc = SPISD::BRICC;
} else {
- CompareFlag = DAG.getNode(SPISD::CMPFCC, MVT::Flag, LHS, RHS);
+ CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS);
if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC);
Opc = SPISD::BRFCC;
}
- return DAG.getNode(Opc, MVT::Other, Chain, Dest,
+ return DAG.getNode(Opc, dl, MVT::Other, Chain, Dest,
DAG.getConstant(SPCC, MVT::i32), CompareFlag);
}
-static SDOperand LowerSELECT_CC(SDOperand Op, SelectionDAG &DAG) {
- SDOperand LHS = Op.getOperand(0);
- SDOperand RHS = Op.getOperand(1);
+static SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) {
+ SDValue LHS = Op.getOperand(0);
+ SDValue RHS = Op.getOperand(1);
ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(4))->get();
- SDOperand TrueVal = Op.getOperand(2);
- SDOperand FalseVal = Op.getOperand(3);
+ SDValue TrueVal = Op.getOperand(2);
+ SDValue FalseVal = Op.getOperand(3);
+ DebugLoc dl = Op.getDebugLoc();
unsigned Opc, SPCC = ~0U;
-
+
// If this is a select_cc of a "setcc", and if the setcc got lowered into
// an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values.
LookThroughSetCC(LHS, RHS, CC, SPCC);
-
- SDOperand CompareFlag;
+
+ SDValue CompareFlag;
if (LHS.getValueType() == MVT::i32) {
- std::vector<MVT::ValueType> VTs;
+ std::vector<EVT> VTs;
VTs.push_back(LHS.getValueType()); // subcc returns a value
- VTs.push_back(MVT::Flag);
- SDOperand Ops[2] = { LHS, RHS };
- CompareFlag = DAG.getNode(SPISD::CMPICC, VTs, Ops, 2).getValue(1);
+ VTs.push_back(MVT::Glue);
+ SDValue Ops[2] = { LHS, RHS };
+ CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1);
Opc = SPISD::SELECT_ICC;
if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC);
} else {
- CompareFlag = DAG.getNode(SPISD::CMPFCC, MVT::Flag, LHS, RHS);
+ CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS);
Opc = SPISD::SELECT_FCC;
if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC);
}
- return DAG.getNode(Opc, TrueVal.getValueType(), TrueVal, FalseVal,
+ return DAG.getNode(Opc, dl, TrueVal.getValueType(), TrueVal, FalseVal,
DAG.getConstant(SPCC, MVT::i32), CompareFlag);
}
-static SDOperand LowerVASTART(SDOperand Op, SelectionDAG &DAG,
- SparcTargetLowering &TLI) {
+static SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
+ const SparcTargetLowering &TLI) {
+ MachineFunction &MF = DAG.getMachineFunction();
+ SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>();
+
// vastart just stores the address of the VarArgsFrameIndex slot into the
// memory location argument.
- SDOperand Offset = DAG.getNode(ISD::ADD, MVT::i32,
- DAG.getRegister(SP::I6, MVT::i32),
- DAG.getConstant(TLI.getVarArgsFrameOffset(),
- MVT::i32));
+ DebugLoc dl = Op.getDebugLoc();
+ SDValue Offset =
+ DAG.getNode(ISD::ADD, dl, MVT::i32,
+ DAG.getRegister(SP::I6, MVT::i32),
+ DAG.getConstant(FuncInfo->getVarArgsFrameOffset(),
+ MVT::i32));
const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue();
- return DAG.getStore(Op.getOperand(0), Offset, Op.getOperand(1), SV, 0);
+ return DAG.getStore(Op.getOperand(0), dl, Offset, Op.getOperand(1),
+ MachinePointerInfo(SV), false, false, 0);
}
-static SDOperand LowerVAARG(SDOperand Op, SelectionDAG &DAG) {
- SDNode *Node = Op.Val;
- MVT::ValueType VT = Node->getValueType(0);
- SDOperand InChain = Node->getOperand(0);
- SDOperand VAListPtr = Node->getOperand(1);
+static SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) {
+ SDNode *Node = Op.getNode();
+ EVT VT = Node->getValueType(0);
+ SDValue InChain = Node->getOperand(0);
+ SDValue VAListPtr = Node->getOperand(1);
const Value *SV = cast<SrcValueSDNode>(Node->getOperand(2))->getValue();
- SDOperand VAList = DAG.getLoad(MVT::i32, InChain, VAListPtr, SV, 0);
+ DebugLoc dl = Node->getDebugLoc();
+ SDValue VAList = DAG.getLoad(MVT::i32, dl, InChain, VAListPtr,
+ MachinePointerInfo(SV), false, false, 0);
// Increment the pointer, VAList, to the next vaarg
- SDOperand NextPtr = DAG.getNode(ISD::ADD, MVT::i32, VAList,
- DAG.getConstant(MVT::getSizeInBits(VT)/8,
+ SDValue NextPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, VAList,
+ DAG.getConstant(VT.getSizeInBits()/8,
MVT::i32));
// Store the incremented VAList to the legalized pointer
- InChain = DAG.getStore(VAList.getValue(1), NextPtr,
- VAListPtr, SV, 0);
+ InChain = DAG.getStore(VAList.getValue(1), dl, NextPtr,
+ VAListPtr, MachinePointerInfo(SV), false, false, 0);
// Load the actual argument out of the pointer VAList, unless this is an
// f64 load.
if (VT != MVT::f64)
- return DAG.getLoad(VT, InChain, VAList, NULL, 0);
-
+ return DAG.getLoad(VT, dl, InChain, VAList, MachinePointerInfo(),
+ false, false, 0);
+
// Otherwise, load it as i64, then do a bitconvert.
- SDOperand V = DAG.getLoad(MVT::i64, InChain, VAList, NULL, 0);
-
+ SDValue V = DAG.getLoad(MVT::i64, dl, InChain, VAList, MachinePointerInfo(),
+ false, false, 0);
+
// Bit-Convert the value to f64.
- SDOperand Ops[2] = {
- DAG.getNode(ISD::BIT_CONVERT, MVT::f64, V),
+ SDValue Ops[2] = {
+ DAG.getNode(ISD::BITCAST, dl, MVT::f64, V),
V.getValue(1)
};
- return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(MVT::f64, MVT::Other),
- Ops, 2);
+ return DAG.getMergeValues(Ops, 2, dl);
}
-static SDOperand LowerDYNAMIC_STACKALLOC(SDOperand Op, SelectionDAG &DAG) {
- SDOperand Chain = Op.getOperand(0); // Legalize the chain.
- SDOperand Size = Op.getOperand(1); // Legalize the size.
-
+static SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) {
+ SDValue Chain = Op.getOperand(0); // Legalize the chain.
+ SDValue Size = Op.getOperand(1); // Legalize the size.
+ DebugLoc dl = Op.getDebugLoc();
+
unsigned SPReg = SP::O6;
- SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, MVT::i32);
- SDOperand NewSP = DAG.getNode(ISD::SUB, MVT::i32, SP, Size); // Value
- Chain = DAG.getCopyToReg(SP.getValue(1), SPReg, NewSP); // Output chain
-
+ SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32);
+ SDValue NewSP = DAG.getNode(ISD::SUB, dl, MVT::i32, SP, Size); // Value
+ Chain = DAG.getCopyToReg(SP.getValue(1), dl, SPReg, NewSP); // Output chain
+
// The resultant pointer is actually 16 words from the bottom of the stack,
// to provide a register spill area.
- SDOperand NewVal = DAG.getNode(ISD::ADD, MVT::i32, NewSP,
+ SDValue NewVal = DAG.getNode(ISD::ADD, dl, MVT::i32, NewSP,
DAG.getConstant(96, MVT::i32));
- std::vector<MVT::ValueType> Tys;
- Tys.push_back(MVT::i32);
- Tys.push_back(MVT::Other);
- SDOperand Ops[2] = { NewVal, Chain };
- return DAG.getNode(ISD::MERGE_VALUES, Tys, Ops, 2);
+ SDValue Ops[2] = { NewVal, Chain };
+ return DAG.getMergeValues(Ops, 2, dl);
}
-SDOperand SparcTargetLowering::
-LowerOperation(SDOperand Op, SelectionDAG &DAG) {
+static SDValue getFLUSHW(SDValue Op, SelectionDAG &DAG) {
+ DebugLoc dl = Op.getDebugLoc();
+ SDValue Chain = DAG.getNode(SPISD::FLUSHW,
+ dl, MVT::Other, DAG.getEntryNode());
+ return Chain;
+}
+
+static SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) {
+ MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+ MFI->setFrameAddressIsTaken(true);
+
+ EVT VT = Op.getValueType();
+ DebugLoc dl = Op.getDebugLoc();
+ unsigned FrameReg = SP::I6;
+
+ uint64_t depth = Op.getConstantOperandVal(0);
+
+ SDValue FrameAddr;
+ if (depth == 0)
+ FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, FrameReg, VT);
+ else {
+ // flush first to make sure the windowed registers' values are in stack
+ SDValue Chain = getFLUSHW(Op, DAG);
+ FrameAddr = DAG.getCopyFromReg(Chain, dl, FrameReg, VT);
+
+ for (uint64_t i = 0; i != depth; ++i) {
+ SDValue Ptr = DAG.getNode(ISD::ADD,
+ dl, MVT::i32,
+ FrameAddr, DAG.getIntPtrConstant(56));
+ FrameAddr = DAG.getLoad(MVT::i32, dl,
+ Chain,
+ Ptr,
+ MachinePointerInfo(), false, false, 0);
+ }
+ }
+ return FrameAddr;
+}
+
+static SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) {
+ MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+ MFI->setReturnAddressIsTaken(true);
+
+ EVT VT = Op.getValueType();
+ DebugLoc dl = Op.getDebugLoc();
+ unsigned RetReg = SP::I7;
+
+ uint64_t depth = Op.getConstantOperandVal(0);
+
+ SDValue RetAddr;
+ if (depth == 0)
+ RetAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, RetReg, VT);
+ else {
+ // flush first to make sure the windowed registers' values are in stack
+ SDValue Chain = getFLUSHW(Op, DAG);
+ RetAddr = DAG.getCopyFromReg(Chain, dl, SP::I6, VT);
+
+ for (uint64_t i = 0; i != depth; ++i) {
+ SDValue Ptr = DAG.getNode(ISD::ADD,
+ dl, MVT::i32,
+ RetAddr,
+ DAG.getIntPtrConstant((i == depth-1)?60:56));
+ RetAddr = DAG.getLoad(MVT::i32, dl,
+ Chain,
+ Ptr,
+ MachinePointerInfo(), false, false, 0);
+ }
+ }
+ return RetAddr;
+}
+
+SDValue SparcTargetLowering::
+LowerOperation(SDValue Op, SelectionDAG &DAG) const {
switch (Op.getOpcode()) {
- default: assert(0 && "Should not custom lower this!");
- // Frame & Return address. Currently unimplemented
- case ISD::RETURNADDR: return SDOperand();
- case ISD::FRAMEADDR: return SDOperand();
+ default: llvm_unreachable("Should not custom lower this!");
+ case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG);
+ case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG);
case ISD::GlobalTLSAddress:
- assert(0 && "TLS not implemented for Sparc.");
- case ISD::GlobalAddress: return LowerGLOBALADDRESS(Op, DAG);
- case ISD::ConstantPool: return LowerCONSTANTPOOL(Op, DAG);
+ llvm_unreachable("TLS not implemented for Sparc.");
+ case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG);
+ case ISD::ConstantPool: return LowerConstantPool(Op, DAG);
case ISD::FP_TO_SINT: return LowerFP_TO_SINT(Op, DAG);
case ISD::SINT_TO_FP: return LowerSINT_TO_FP(Op, DAG);
case ISD::BR_CC: return LowerBR_CC(Op, DAG);
case ISD::VASTART: return LowerVASTART(Op, DAG, *this);
case ISD::VAARG: return LowerVAARG(Op, DAG);
case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG);
- case ISD::CALL: return LowerCALL(Op, DAG);
- case ISD::RET: return LowerRET(Op, DAG);
}
}
MachineBasicBlock *
SparcTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *BB) {
+ MachineBasicBlock *BB) const {
const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo();
unsigned BROpcode;
unsigned CC;
+ DebugLoc dl = MI->getDebugLoc();
// Figure out the conditional branch opcode to use for this select_cc.
switch (MI->getOpcode()) {
- default: assert(0 && "Unknown SELECT_CC!");
+ default: llvm_unreachable("Unknown SELECT_CC!");
case SP::SELECT_CC_Int_ICC:
case SP::SELECT_CC_FP_ICC:
case SP::SELECT_CC_DFP_ICC:
}
CC = (SPCC::CondCodes)MI->getOperand(3).getImm();
-
+
// To "insert" a SELECT_CC instruction, we actually have to insert the diamond
// control-flow pattern. The incoming instruction knows the destination vreg
// to set, the condition code register to branch on, the true/false values to
// select between, and a branch opcode to use.
const BasicBlock *LLVM_BB = BB->getBasicBlock();
- ilist<MachineBasicBlock>::iterator It = BB;
+ MachineFunction::iterator It = BB;
++It;
-
+
// thisMBB:
// ...
// TrueVal = ...
// [f]bCC copy1MBB
// fallthrough --> copy0MBB
MachineBasicBlock *thisMBB = BB;
- MachineBasicBlock *copy0MBB = new MachineBasicBlock(LLVM_BB);
- MachineBasicBlock *sinkMBB = new MachineBasicBlock(LLVM_BB);
- BuildMI(BB, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC);
MachineFunction *F = BB->getParent();
- F->getBasicBlockList().insert(It, copy0MBB);
- F->getBasicBlockList().insert(It, sinkMBB);
- // Update machine-CFG edges by first adding all successors of the current
- // block to the new block which will contain the Phi node for the select.
- for(MachineBasicBlock::succ_iterator i = BB->succ_begin(),
- e = BB->succ_end(); i != e; ++i)
- sinkMBB->addSuccessor(*i);
- // Next, remove all successors of the current block, and add the true
- // and fallthrough blocks as its successors.
- while(!BB->succ_empty())
- BB->removeSuccessor(BB->succ_begin());
+ MachineBasicBlock *copy0MBB = F->CreateMachineBasicBlock(LLVM_BB);
+ MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB);
+ F->insert(It, copy0MBB);
+ F->insert(It, sinkMBB);
+
+ // Transfer the remainder of BB and its successor edges to sinkMBB.
+ sinkMBB->splice(sinkMBB->begin(), BB,
+ llvm::next(MachineBasicBlock::iterator(MI)),
+ BB->end());
+ sinkMBB->transferSuccessorsAndUpdatePHIs(BB);
+
+ // Add the true and fallthrough blocks as its successors.
BB->addSuccessor(copy0MBB);
BB->addSuccessor(sinkMBB);
-
+
+ BuildMI(BB, dl, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC);
+
// copy0MBB:
// %FalseValue = ...
// # fallthrough to sinkMBB
BB = copy0MBB;
-
+
// Update machine-CFG edges
BB->addSuccessor(sinkMBB);
-
+
// sinkMBB:
// %Result = phi [ %FalseValue, copy0MBB ], [ %TrueValue, thisMBB ]
// ...
BB = sinkMBB;
- BuildMI(BB, TII.get(SP::PHI), MI->getOperand(0).getReg())
+ BuildMI(*BB, BB->begin(), dl, TII.get(SP::PHI), MI->getOperand(0).getReg())
.addReg(MI->getOperand(2).getReg()).addMBB(copy0MBB)
.addReg(MI->getOperand(1).getReg()).addMBB(thisMBB);
-
- delete MI; // The pseudo instruction is gone now.
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
return BB;
}
+//===----------------------------------------------------------------------===//
+// Sparc Inline Assembly Support
+//===----------------------------------------------------------------------===//
+
+/// getConstraintType - Given a constraint letter, return the type of
+/// constraint it is for this target.
+SparcTargetLowering::ConstraintType
+SparcTargetLowering::getConstraintType(const std::string &Constraint) const {
+ if (Constraint.size() == 1) {
+ switch (Constraint[0]) {
+ default: break;
+ case 'r': return C_RegisterClass;
+ }
+ }
+
+ return TargetLowering::getConstraintType(Constraint);
+}
+
+std::pair<unsigned, const TargetRegisterClass*>
+SparcTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
+ EVT VT) const {
+ if (Constraint.size() == 1) {
+ switch (Constraint[0]) {
+ case 'r':
+ return std::make_pair(0U, SP::IntRegsRegisterClass);
+ }
+ }
+
+ return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
+}
+
+bool
+SparcTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
+ // The Sparc target isn't yet aware of offsets.
+ return false;
+}
projects / oota-llvm.git / blobdiff