explicit ARMFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo)
: FastISel(funcInfo, libInfo),
+ Subtarget(
+ &static_cast<const ARMSubtarget &>(funcInfo.MF->getSubtarget())),
M(const_cast<Module &>(*funcInfo.Fn->getParent())),
- TM(funcInfo.MF->getTarget()),
- TII(*TM.getSubtargetImpl()->getInstrInfo()),
- TLI(*TM.getSubtargetImpl()->getTargetLowering()) {
- Subtarget = &TM.getSubtarget<ARMSubtarget>();
+ TM(funcInfo.MF->getTarget()), TII(*Subtarget->getInstrInfo()),
+ TLI(*Subtarget->getTargetLowering()) {
AFI = funcInfo.MF->getInfo<ARMFunctionInfo>();
isThumb2 = AFI->isThumbFunction();
Context = &funcInfo.Fn->getContext();
// Code from FastISel.cpp.
private:
- unsigned FastEmitInst_r(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_r(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill);
- unsigned FastEmitInst_rr(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_rr(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill);
- unsigned FastEmitInst_rrr(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_rrr(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill,
unsigned Op2, bool Op2IsKill);
- unsigned FastEmitInst_ri(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_ri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
uint64_t Imm);
- unsigned FastEmitInst_rri(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_rri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill,
uint64_t Imm);
- unsigned FastEmitInst_i(unsigned MachineInstOpcode,
+ unsigned fastEmitInst_i(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
uint64_t Imm);
// Backend specific FastISel code.
private:
- bool TargetSelectInstruction(const Instruction *I) override;
- unsigned TargetMaterializeConstant(const Constant *C) override;
- unsigned TargetMaterializeAlloca(const AllocaInst *AI) override;
+ bool fastSelectInstruction(const Instruction *I) override;
+ unsigned fastMaterializeConstant(const Constant *C) override;
+ unsigned fastMaterializeAlloca(const AllocaInst *AI) override;
bool tryToFoldLoadIntoMI(MachineInstr *MI, unsigned OpNo,
const LoadInst *LI) override;
- bool FastLowerArguments() override;
+ bool fastLowerArguments() override;
private:
#include "ARMGenFastISel.inc"
unsigned ARMSelectCallOp(bool UseReg);
unsigned ARMLowerPICELF(const GlobalValue *GV, unsigned Align, MVT VT);
- const TargetLowering *getTargetLowering() {
- return TM.getSubtargetImpl()->getTargetLowering();
- }
+ const TargetLowering *getTargetLowering() { return &TLI; }
// Call handling routines.
private:
return MIB;
}
-unsigned ARMFastISel::FastEmitInst_r(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_r(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill) {
unsigned ResultReg = createResultReg(RC);
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_rr(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_rr(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill) {
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_rrr(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_rrr(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill,
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_ri(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_ri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
uint64_t Imm) {
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_rri(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_rri(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
unsigned Op0, bool Op0IsKill,
unsigned Op1, bool Op1IsKill,
return ResultReg;
}
-unsigned ARMFastISel::FastEmitInst_i(unsigned MachineInstOpcode,
+unsigned ARMFastISel::fastEmitInst_i(unsigned MachineInstOpcode,
const TargetRegisterClass *RC,
uint64_t Imm) {
unsigned ResultReg = createResultReg(RC);
unsigned ARMFastISel::ARMMaterializeInt(const Constant *C, MVT VT) {
if (VT != MVT::i32 && VT != MVT::i16 && VT != MVT::i8 && VT != MVT::i1)
- return false;
+ return 0;
// If we can do this in a single instruction without a constant pool entry
// do so now.
}
}
+ unsigned ResultReg = 0;
if (Subtarget->useMovt(*FuncInfo.MF))
- return FastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue());
+ ResultReg = fastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue());
+
+ if (ResultReg)
+ return ResultReg;
// Load from constant pool. For now 32-bit only.
if (VT != MVT::i32)
- return false;
-
- unsigned DestReg = createResultReg(TLI.getRegClassFor(VT));
+ return 0;
// MachineConstantPool wants an explicit alignment.
unsigned Align = DL.getPrefTypeAlignment(C->getType());
Align = DL.getTypeAllocSize(C->getType());
}
unsigned Idx = MCP.getConstantPoolIndex(C, Align);
-
+ ResultReg = createResultReg(TLI.getRegClassFor(VT));
if (isThumb2)
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(ARM::t2LDRpci), DestReg)
- .addConstantPoolIndex(Idx));
+ TII.get(ARM::t2LDRpci), ResultReg)
+ .addConstantPoolIndex(Idx));
else {
// The extra immediate is for addrmode2.
- DestReg = constrainOperandRegClass(TII.get(ARM::LDRcp), DestReg, 0);
+ ResultReg = constrainOperandRegClass(TII.get(ARM::LDRcp), ResultReg, 0);
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(ARM::LDRcp), DestReg)
- .addConstantPoolIndex(Idx)
- .addImm(0));
+ TII.get(ARM::LDRcp), ResultReg)
+ .addConstantPoolIndex(Idx)
+ .addImm(0));
}
-
- return DestReg;
+ return ResultReg;
}
unsigned ARMFastISel::ARMMaterializeGV(const GlobalValue *GV, MVT VT) {
Reloc::Model RelocM = TM.getRelocationModel();
bool IsIndirect = Subtarget->GVIsIndirectSymbol(GV, RelocM);
- const TargetRegisterClass *RC = isThumb2 ?
- (const TargetRegisterClass*)&ARM::rGPRRegClass :
- (const TargetRegisterClass*)&ARM::GPRRegClass;
+ const TargetRegisterClass *RC = isThumb2 ? &ARM::rGPRRegClass
+ : &ARM::GPRRegClass;
unsigned DestReg = createResultReg(RC);
// FastISel TLS support on non-MachO is broken, punt to SelectionDAG.
return DestReg;
}
-unsigned ARMFastISel::TargetMaterializeConstant(const Constant *C) {
+unsigned ARMFastISel::fastMaterializeConstant(const Constant *C) {
EVT CEVT = TLI.getValueType(C->getType(), true);
// Only handle simple types.
// TODO: unsigned ARMFastISel::TargetMaterializeFloatZero(const ConstantFP *CF);
-unsigned ARMFastISel::TargetMaterializeAlloca(const AllocaInst *AI) {
+unsigned ARMFastISel::fastMaterializeAlloca(const AllocaInst *AI) {
// Don't handle dynamic allocas.
if (!FuncInfo.StaticAllocaMap.count(AI)) return 0;
// put the alloca address into a register, set the base type back to
// register and continue. This should almost never happen.
if (needsLowering && Addr.BaseType == Address::FrameIndexBase) {
- const TargetRegisterClass *RC = isThumb2 ?
- (const TargetRegisterClass*)&ARM::tGPRRegClass :
- (const TargetRegisterClass*)&ARM::GPRRegClass;
+ const TargetRegisterClass *RC = isThumb2 ? &ARM::tGPRRegClass
+ : &ARM::GPRRegClass;
unsigned ResultReg = createResultReg(RC);
unsigned Opc = isThumb2 ? ARM::t2ADDri : ARM::ADDri;
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
// Since the offset is too large for the load/store instruction
// get the reg+offset into a register.
if (needsLowering) {
- Addr.Base.Reg = FastEmit_ri_(MVT::i32, ISD::ADD, Addr.Base.Reg,
+ Addr.Base.Reg = fastEmit_ri_(MVT::i32, ISD::ADD, Addr.Base.Reg,
/*Op0IsKill*/false, Addr.Offset, MVT::i32);
Addr.Offset = 0;
}
unsigned ResultReg;
if (!ARMEmitLoad(VT, ResultReg, Addr, cast<LoadInst>(I)->getAlignment()))
return false;
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
// This is mostly going to be Neon/vector support.
default: return false;
case MVT::i1: {
- unsigned Res = createResultReg(isThumb2 ?
- (const TargetRegisterClass*)&ARM::tGPRRegClass :
- (const TargetRegisterClass*)&ARM::GPRRegClass);
+ unsigned Res = createResultReg(isThumb2 ? &ARM::tGPRRegClass
+ : &ARM::GPRRegClass);
unsigned Opc = isThumb2 ? ARM::t2ANDri : ARM::ANDri;
SrcReg = constrainOperandRegClass(TII.get(Opc), SrcReg, 1);
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
unsigned BrOpc = isThumb2 ? ARM::t2Bcc : ARM::Bcc;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(ARMPred).addReg(ARM::CPSR);
- FastEmitBranch(FBB, DbgLoc);
+ fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
return true;
}
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(CCMode).addReg(ARM::CPSR);
- FastEmitBranch(FBB, DbgLoc);
+ fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
return true;
}
dyn_cast<ConstantInt>(BI->getCondition())) {
uint64_t Imm = CI->getZExtValue();
MachineBasicBlock *Target = (Imm == 0) ? FBB : TBB;
- FastEmitBranch(Target, DbgLoc);
+ fastEmitBranch(Target, DbgLoc);
return true;
}
unsigned BrOpc = isThumb2 ? ARM::t2Bcc : ARM::Bcc;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(CCMode).addReg(ARM::CPSR);
- FastEmitBranch(FBB, DbgLoc);
+ fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
return true;
}
// Now set a register based on the comparison. Explicitly set the predicates
// here.
unsigned MovCCOpc = isThumb2 ? ARM::t2MOVCCi : ARM::MOVCCi;
- const TargetRegisterClass *RC = isThumb2 ?
- (const TargetRegisterClass*)&ARM::rGPRRegClass :
- (const TargetRegisterClass*)&ARM::GPRRegClass;
+ const TargetRegisterClass *RC = isThumb2 ? &ARM::rGPRRegClass
+ : &ARM::GPRRegClass;
unsigned DestReg = createResultReg(RC);
Constant *Zero = ConstantInt::get(Type::getInt32Ty(*Context), 0);
- unsigned ZeroReg = TargetMaterializeConstant(Zero);
+ unsigned ZeroReg = fastMaterializeConstant(Zero);
// ARMEmitCmp emits a FMSTAT when necessary, so it's always safe to use CPSR.
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(MovCCOpc), DestReg)
.addReg(ZeroReg).addImm(1)
.addImm(ARMPred).addReg(ARM::CPSR);
- UpdateValueMap(I, DestReg);
+ updateValueMap(I, DestReg);
return true;
}
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(ARM::VCVTDS), Result)
.addReg(Op));
- UpdateValueMap(I, Result);
+ updateValueMap(I, Result);
return true;
}
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(ARM::VCVTSD), Result)
.addReg(Op));
- UpdateValueMap(I, Result);
+ updateValueMap(I, Result);
return true;
}
unsigned ResultReg = createResultReg(TLI.getRegClassFor(DstVT));
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(Opc), ResultReg).addReg(FP));
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
unsigned IntReg = ARMMoveToIntReg(DstVT, ResultReg);
if (IntReg == 0) return false;
- UpdateValueMap(I, IntReg);
+ updateValueMap(I, IntReg);
return true;
}
.addImm(ARMCC::EQ)
.addReg(ARM::CPSR);
}
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(Opc), ResultReg)
.addReg(SrcReg1).addReg(SrcReg2));
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(Opc), ResultReg)
.addReg(Op1).addReg(Op2));
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
break;
}
case CCValAssign::BCvt: {
- unsigned BC = FastEmit_r(ArgVT, VA.getLocVT(), ISD::BITCAST, Arg,
+ unsigned BC = fastEmit_r(ArgVT, VA.getLocVT(), ISD::BITCAST, Arg,
/*TODO: Kill=*/false);
assert(BC != 0 && "Failed to emit a bitcast!");
Arg = BC;
UsedRegs.push_back(RVLocs[1].getLocReg());
// Finally update the result.
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
} else {
assert(RVLocs.size() == 1 &&"Can't handle non-double multi-reg retvals!");
MVT CopyVT = RVLocs[0].getValVT();
UsedRegs.push_back(RVLocs[0].getLocReg());
// Finally update the result.
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
}
}
MachineFrameInfo *MFI = FuncInfo.MF->getFrameInfo();
MFI->setFrameAddressIsTaken(true);
- unsigned LdrOpc;
- const TargetRegisterClass *RC;
- if (isThumb2) {
- LdrOpc = ARM::t2LDRi12;
- RC = (const TargetRegisterClass*)&ARM::tGPRRegClass;
- } else {
- LdrOpc = ARM::LDRi12;
- RC = (const TargetRegisterClass*)&ARM::GPRRegClass;
- }
+ unsigned LdrOpc = isThumb2 ? ARM::t2LDRi12 : ARM::LDRi12;
+ const TargetRegisterClass *RC = isThumb2 ? &ARM::tGPRRegClass
+ : &ARM::GPRRegClass;
const ARMBaseRegisterInfo *RegInfo =
- static_cast<const ARMBaseRegisterInfo *>(
- TM.getSubtargetImpl()->getRegisterInfo());
+ static_cast<const ARMBaseRegisterInfo *>(Subtarget->getRegisterInfo());
unsigned FramePtr = RegInfo->getFrameRegister(*(FuncInfo.MF));
unsigned SrcReg = FramePtr;
.addReg(SrcReg).addImm(0));
SrcReg = DestReg;
}
- UpdateValueMap(&I, SrcReg);
+ updateValueMap(&I, SrcReg);
return true;
}
case Intrinsic::memcpy:
// Because the high bits are undefined, a truncate doesn't generate
// any code.
- UpdateValueMap(I, SrcReg);
+ updateValueMap(I, SrcReg);
return true;
}
MVT DestVT = DestEVT.getSimpleVT();
unsigned ResultReg = ARMEmitIntExt(SrcVT, SrcReg, DestVT, isZExt);
if (ResultReg == 0) return false;
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
}
AddOptionalDefs(MIB);
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
return true;
}
// TODO: SoftFP support.
-bool ARMFastISel::TargetSelectInstruction(const Instruction *I) {
+bool ARMFastISel::fastSelectInstruction(const Instruction *I) {
switch (I->getOpcode()) {
case Instruction::Load:
return DestReg2;
}
-bool ARMFastISel::FastLowerArguments() {
+bool ARMFastISel::fastLowerArguments() {
if (!FuncInfo.CanLowerReturn)
return false;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(TargetOpcode::COPY),
ResultReg).addReg(DstReg, getKillRegState(true));
- UpdateValueMap(I, ResultReg);
+ updateValueMap(I, ResultReg);
}
return true;
FastISel *ARM::createFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo) {
const TargetMachine &TM = funcInfo.MF->getTarget();
-
- const ARMSubtarget *Subtarget = &TM.getSubtarget<ARMSubtarget>();
+ const ARMSubtarget &STI =
+ static_cast<const ARMSubtarget &>(funcInfo.MF->getSubtarget());
// Thumb2 support on iOS; ARM support on iOS, Linux and NaCl.
bool UseFastISel = false;
- UseFastISel |= Subtarget->isTargetMachO() && !Subtarget->isThumb1Only();
- UseFastISel |= Subtarget->isTargetLinux() && !Subtarget->isThumb();
- UseFastISel |= Subtarget->isTargetNaCl() && !Subtarget->isThumb();
+ UseFastISel |= STI.isTargetMachO() && !STI.isThumb1Only();
+ UseFastISel |= STI.isTargetLinux() && !STI.isThumb();
+ UseFastISel |= STI.isTargetNaCl() && !STI.isThumb();
if (UseFastISel) {
// iOS always has a FP for backtracking, force other targets