public:
explicit ARMFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo)
- : FastISel(funcInfo, libInfo),
- M(const_cast<Module&>(*funcInfo.Fn->getParent())),
- TM(funcInfo.MF->getTarget()),
- TII(*TM.getInstrInfo()),
- TLI(*TM.getTargetLowering()) {
+ : FastISel(funcInfo, libInfo),
+ M(const_cast<Module &>(*funcInfo.Fn->getParent())),
+ TM(funcInfo.MF->getTarget()),
+ TII(*TM.getSubtargetImpl()->getInstrInfo()),
+ TLI(*TM.getSubtargetImpl()->getTargetLowering()) {
Subtarget = &TM.getSubtarget<ARMSubtarget>();
AFI = funcInfo.MF->getInfo<ARMFunctionInfo>();
isThumb2 = AFI->isThumbFunction();
// Code from FastISel.cpp.
private:
- unsigned FastEmitInst_(unsigned MachineInstOpcode,
- const TargetRegisterClass *RC);
unsigned FastEmitInst_r(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill);
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
uint64_t Imm);
- unsigned FastEmitInst_rf(unsigned MachineInstOpcode,
- const TargetRegisterClass *RC,
- unsigned Op0, bool Op0IsKill,
- const ConstantFP *FPImm);
unsigned FastEmitInst_rri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned FastEmitInst_i(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
uint64_t Imm);
- unsigned FastEmitInst_ii(unsigned MachineInstOpcode,
- const TargetRegisterClass *RC,
- uint64_t Imm1, uint64_t Imm2);
-
- unsigned FastEmitInst_extractsubreg(MVT RetVT,
- unsigned Op0, bool Op0IsKill,
- uint32_t Idx);
// Backend specific FastISel code.
private:
// Utility routines.
private:
- unsigned constrainOperandRegClass(const MCInstrDesc &II, unsigned OpNum,
- unsigned Op);
bool isTypeLegal(Type *Ty, MVT &VT);
bool isLoadTypeLegal(Type *Ty, MVT &VT);
bool ARMEmitCmp(const Value *Src1Value, const Value *Src2Value,
unsigned ARMSelectCallOp(bool UseReg);
unsigned ARMLowerPICELF(const GlobalValue *GV, unsigned Align, MVT VT);
+ const TargetLowering *getTargetLowering() {
+ return TM.getSubtargetImpl()->getTargetLowering();
+ }
+
// Call handling routines.
private:
CCAssignFn *CCAssignFnForCall(CallingConv::ID CC,
return MIB;
}
-unsigned ARMFastISel::constrainOperandRegClass(const MCInstrDesc &II,
- unsigned Op, unsigned OpNum) {
- if (TargetRegisterInfo::isVirtualRegister(Op)) {
- const TargetRegisterClass *RegClass =
- TII.getRegClass(II, OpNum, &TRI, *FuncInfo.MF);
- if (!MRI.constrainRegClass(Op, RegClass)) {
- // If it's not legal to COPY between the register classes, something
- // has gone very wrong before we got here.
- unsigned NewOp = createResultReg(RegClass);
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(TargetOpcode::COPY), NewOp).addReg(Op));
- return NewOp;
- }
- }
- return Op;
-}
-
-unsigned ARMFastISel::FastEmitInst_(unsigned MachineInstOpcode,
- const TargetRegisterClass* RC) {
- unsigned ResultReg = createResultReg(RC);
- const MCInstrDesc &II = TII.get(MachineInstOpcode);
-
- AddOptionalDefs(
- BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II, ResultReg));
- return ResultReg;
-}
-
unsigned ARMFastISel::FastEmitInst_r(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill) {
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_rf(unsigned MachineInstOpcode,
- const TargetRegisterClass *RC,
- unsigned Op0, bool Op0IsKill,
- const ConstantFP *FPImm) {
- unsigned ResultReg = createResultReg(RC);
- const MCInstrDesc &II = TII.get(MachineInstOpcode);
-
- // Make sure the input operand is sufficiently constrained to be legal
- // for this instruction.
- Op0 = constrainOperandRegClass(II, Op0, 1);
- if (II.getNumDefs() >= 1) {
- AddOptionalDefs(
- BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II, ResultReg)
- .addReg(Op0, Op0IsKill * RegState::Kill)
- .addFPImm(FPImm));
- } else {
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II)
- .addReg(Op0, Op0IsKill * RegState::Kill)
- .addFPImm(FPImm));
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(TargetOpcode::COPY), ResultReg)
- .addReg(II.ImplicitDefs[0]));
- }
- return ResultReg;
-}
-
unsigned ARMFastISel::FastEmitInst_rri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_ii(unsigned MachineInstOpcode,
- const TargetRegisterClass *RC,
- uint64_t Imm1, uint64_t Imm2) {
- unsigned ResultReg = createResultReg(RC);
- const MCInstrDesc &II = TII.get(MachineInstOpcode);
-
- if (II.getNumDefs() >= 1) {
- AddOptionalDefs(
- BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II, ResultReg)
- .addImm(Imm1)
- .addImm(Imm2));
- } else {
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II)
- .addImm(Imm1).addImm(Imm2));
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(TargetOpcode::COPY),
- ResultReg)
- .addReg(II.ImplicitDefs[0]));
- }
- return ResultReg;
-}
-
-unsigned ARMFastISel::FastEmitInst_extractsubreg(MVT RetVT,
- unsigned Op0, bool Op0IsKill,
- uint32_t Idx) {
- unsigned ResultReg = createResultReg(TLI.getRegClassFor(RetVT));
- assert(TargetRegisterInfo::isVirtualRegister(Op0) &&
- "Cannot yet extract from physregs");
-
- AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt,
- DbgLoc, TII.get(TargetOpcode::COPY), ResultReg)
- .addReg(Op0, getKillRegState(Op0IsKill), Idx));
- return ResultReg;
-}
-
// TODO: Don't worry about 64-bit now, but when this is fixed remove the
// checks from the various callers.
unsigned ARMFastISel::ARMMoveToFPReg(MVT VT, unsigned SrcReg) {
// Use movw+movt when possible, it avoids constant pool entries.
// Non-darwin targets only support static movt relocations in FastISel.
- if (Subtarget->useMovt() &&
+ if (Subtarget->useMovt(*FuncInfo.MF) &&
(Subtarget->isTargetMachO() || RelocM == Reloc::Static)) {
unsigned Opc;
unsigned char TF = 0;
// Computes the address to get to an object.
bool ARMFastISel::ARMComputeAddress(const Value *Obj, Address &Addr) {
// Some boilerplate from the X86 FastISel.
- const User *U = NULL;
+ const User *U = nullptr;
unsigned Opcode = Instruction::UserOp1;
if (const Instruction *I = dyn_cast<Instruction>(Obj)) {
// Don't walk into other basic blocks unless the object is an alloca from
const APInt &CIVal = ConstInt->getValue();
Imm = (isZExt) ? (int)CIVal.getZExtValue() : (int)CIVal.getSExtValue();
// For INT_MIN/LONG_MIN (i.e., 0x80000000) we need to use a cmp, rather
- // then a cmn, because there is no way to represent 2147483648 as a
+ // then a cmn, because there is no way to represent 2147483648 as a
// signed 32-bit int.
if (Imm < 0 && Imm != (int)0x80000000) {
isNegativeImm = true;
unsigned &NumBytes,
bool isVarArg) {
SmallVector<CCValAssign, 16> ArgLocs;
- CCState CCInfo(CC, isVarArg, *FuncInfo.MF, TM, ArgLocs, *Context);
+ CCState CCInfo(CC, isVarArg, *FuncInfo.MF, ArgLocs, *Context);
CCInfo.AnalyzeCallOperands(ArgVTs, ArgFlags,
CCAssignFnForCall(CC, false, isVarArg));
// Process the args.
for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
+ const Value *ArgVal = Args[VA.getValNo()];
unsigned Arg = ArgRegs[VA.getValNo()];
MVT ArgVT = ArgVTs[VA.getValNo()];
} else {
assert(VA.isMemLoc());
// Need to store on the stack.
+
+ // Don't emit stores for undef values.
+ if (isa<UndefValue>(ArgVal))
+ continue;
+
Address Addr;
Addr.BaseType = Address::RegBase;
Addr.Base.Reg = ARM::SP;
// Now the return value.
if (RetVT != MVT::isVoid) {
SmallVector<CCValAssign, 16> RVLocs;
- CCState CCInfo(CC, isVarArg, *FuncInfo.MF, TM, RVLocs, *Context);
+ CCState CCInfo(CC, isVarArg, *FuncInfo.MF, RVLocs, *Context);
CCInfo.AnalyzeCallResult(RetVT, CCAssignFnForCall(CC, true, isVarArg));
// Copy all of the result registers out of their specified physreg.
// Analyze operands of the call, assigning locations to each operand.
SmallVector<CCValAssign, 16> ValLocs;
- CCState CCInfo(CC, F.isVarArg(), *FuncInfo.MF, TM, ValLocs,I->getContext());
+ CCState CCInfo(CC, F.isVarArg(), *FuncInfo.MF, ValLocs, I->getContext());
CCInfo.AnalyzeReturn(Outs, CCAssignFnForCall(CC, true /* is Ret */,
F.isVarArg()));
if (!LCREVT.isSimple()) return 0;
GlobalValue *GV = new GlobalVariable(M, Type::getInt32Ty(*Context), false,
- GlobalValue::ExternalLinkage, 0, Name);
+ GlobalValue::ExternalLinkage, nullptr,
+ Name);
assert(GV->getType() == GVTy && "We miscomputed the type for the global!");
return ARMMaterializeGV(GV, LCREVT.getSimpleVT());
}
// Can't handle non-double multi-reg retvals.
if (RetVT != MVT::isVoid && RetVT != MVT::i32) {
SmallVector<CCValAssign, 16> RVLocs;
- CCState CCInfo(CC, false, *FuncInfo.MF, TM, RVLocs, *Context);
+ CCState CCInfo(CC, false, *FuncInfo.MF, RVLocs, *Context);
CCInfo.AnalyzeCallResult(RetVT, CCAssignFnForCall(CC, true, false));
if (RVLocs.size() >= 2 && RetVT != MVT::f64)
return false;
}
bool ARMFastISel::SelectCall(const Instruction *I,
- const char *IntrMemName = 0) {
+ const char *IntrMemName = nullptr) {
const CallInst *CI = cast<CallInst>(I);
const Value *Callee = CI->getCalledValue();
if (RetVT != MVT::isVoid && RetVT != MVT::i1 && RetVT != MVT::i8 &&
RetVT != MVT::i16 && RetVT != MVT::i32) {
SmallVector<CCValAssign, 16> RVLocs;
- CCState CCInfo(CC, isVarArg, *FuncInfo.MF, TM, RVLocs, *Context);
+ CCState CCInfo(CC, isVarArg, *FuncInfo.MF, RVLocs, *Context);
CCInfo.AnalyzeCallResult(RetVT, CCAssignFnForCall(CC, true, isVarArg));
if (RVLocs.size() >= 2 && RetVT != MVT::f64)
return false;
}
const ARMBaseRegisterInfo *RegInfo =
- static_cast<const ARMBaseRegisterInfo*>(TM.getRegisterInfo());
+ static_cast<const ARMBaseRegisterInfo *>(
+ TM.getSubtargetImpl()->getRegisterInfo());
unsigned FramePtr = RegInfo->getFrameRegister(*(FuncInfo.MF));
unsigned SrcReg = FramePtr;
TM.Options.NoFramePointerElim = true;
return new ARMFastISel(funcInfo, libInfo);
}
- return 0;
+ return nullptr;
}
}
projects / oota-llvm.git / blobdiff