return TRI->getDwarfRegNum(RegNum, isEH);
}
+ int getLLVMRegNum(unsigned DwarfRegNum, bool isEH) const {
+ return TRI->getLLVMRegNum(DwarfRegNum, isEH);
+ }
+
int getSEHRegNum(unsigned RegNum) const {
return TRI->getSEHRegNum(RegNum);
}
/// debugging info.
virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const = 0;
+ virtual int getLLVMRegNum(unsigned RegNum, bool isEH) const = 0;
+
/// getFrameRegister - This method should return the register used as a base
/// for values allocated in the current stack frame.
virtual unsigned getFrameRegister(const MachineFunction &MF) const = 0;
bool needsSet(const MCExpr *Value);
+ void EmitRegisterName(int64_t Register);
+
public:
MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
bool isVerboseAsm, bool useLoc, bool useCFI,
EmitEOL();
}
+void MCAsmStreamer::EmitRegisterName(int64_t Register) {
+ if (InstPrinter) {
+ const TargetAsmInfo &asmInfo = getContext().getTargetAsmInfo();
+ unsigned LLVMRegister = asmInfo.getLLVMRegNum(Register, true);
+ OS << '%' << InstPrinter->getRegName(LLVMRegister);
+ } else {
+ OS << Register;
+ }
+}
+
void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
MCStreamer::EmitCFIDefCfa(Register, Offset);
if (!UseCFI)
return;
- OS << "\t.cfi_def_cfa " << Register << ", " << Offset;
+ OS << "\t.cfi_def_cfa ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
EmitEOL();
}
if (!UseCFI)
return;
- OS << "\t.cfi_def_cfa_register " << Register;
+ OS << "\t.cfi_def_cfa_register ";
+ EmitRegisterName(Register);
EmitEOL();
}
if (!UseCFI)
return;
- OS << "\t.cfi_offset " << Register << ", " << Offset;
+ OS << "\t.cfi_offset ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
EmitEOL();
}
if (!UseCFI)
return;
- OS << "\t.cfi_same_value " << Register;
+ OS << "\t.cfi_same_value ";
+ EmitRegisterName(Register);
EmitEOL();
}
if (!UseCFI)
return;
- OS << "\t.cfi_rel_offset " << Register << ", " << Offset;
+ OS << "\t.cfi_rel_offset ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
EmitEOL();
}
return ARMGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+int ARMBaseRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ return ARMGenRegisterInfo::getLLVMRegNumFull(DwarfRegNo,0);
+}
+
unsigned ARMBaseRegisterInfo::getRegisterPairEven(unsigned Reg,
const MachineFunction &MF) const {
switch (Reg) {
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
bool isLowRegister(unsigned Reg) const;
return -1;
}
+int AlphaRegisterInfo::getLLVMRegNum(unsigned DwarfRegNum, bool isEH) const {
+ llvm_unreachable("What is the dwarf register number");
+ return -1;
+}
+
#include "AlphaGenRegisterInfo.inc"
std::string AlphaRegisterInfo::getPrettyName(unsigned reg)
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
static std::string getPrettyName(unsigned reg);
};
return -1;
}
+int BlackfinRegisterInfo::getLLVMRegNum(unsigned DwarfRegNum,
+ bool isEH) const {
+ llvm_unreachable("What is the dwarf register number");
+ return -1;
+}
+
#include "BlackfinGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
// Utility functions
void adjustRegister(MachineBasicBlock &MBB,
return SPUGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+int SPURegisterInfo::getLLVMRegNum(unsigned RegNum, bool isEH) const {
+ return SPUGenRegisterInfo::getLLVMRegNumFull(RegNum, 0);
+}
+
int
SPURegisterInfo::convertDFormToXForm(int dFormOpcode) const
{
//! Get DWARF debugging register number
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
//! Convert D-form load/store to X-form load/store
/*!
return MBlazeGenRegisterInfo::getDwarfRegNumFull(RegNo,0);
}
+int MBlazeRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ return MBlazeGenRegisterInfo::getLLVMRegNumFull(DwarfRegNo,0);
+}
+
#include "MBlazeGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
return 0;
}
+int MSP430RegisterInfo::getLLVMRegNum(unsigned RegNum, bool isEH) const {
+ llvm_unreachable("Not implemented yet!");
+ return 0;
+}
+
#include "MSP430GenRegisterInfo.inc"
//! Get DWARF debugging register number
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
return MipsGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+int MipsRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ return MipsGenRegisterInfo::getLLVMRegNumFull(DwarfRegNo,0);
+}
+
#include "MipsGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const {
return PTXGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+ virtual int getLLVMRegNum(unsigned RegNum, bool isEH) const {
+ return PTXGenRegisterInfo::getLLVMRegNumFull(RegNum, 0);
+ }
}; // struct PTXRegisterInfo
} // namespace llvm
return getInstructionName(Opcode);
}
+StringRef PPCInstPrinter::getRegName(unsigned RegNo) const {
+ return getRegisterName(RegNo);
+}
void PPCInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
// Check for slwi/srwi mnemonics.
return SyntaxVariant == 1;
}
+ StringRef getRegName(unsigned RegNo) const;
virtual void printInst(const MCInst *MI, raw_ostream &O);
virtual StringRef getOpcodeName(unsigned Opcode) const;
int Offset = MFI->getObjectOffset(CSI[I].getFrameIdx());
unsigned Reg = CSI[I].getReg();
if (Reg == PPC::LR || Reg == PPC::LR8 || Reg == PPC::RM) continue;
+
+ // This is a bit of a hack: CR2LT, CR2GT, CR2EQ and CR2UN are just
+ // subregisters of CR2. We just need to emit a move of CR2.
+ if (Reg == PPC::CR2LT || Reg == PPC::CR2GT || Reg == PPC::CR2EQ)
+ continue;
+ if (Reg == PPC::CR2UN)
+ Reg = PPC::CR2;
+
MachineLocation CSDst(MachineLocation::VirtualFP, Offset);
MachineLocation CSSrc(Reg);
Moves.push_back(MachineMove(Label, CSDst, CSSrc));
return PPCGenRegisterInfo::getDwarfRegNumFull(RegNum, Flavour);
}
+int PPCRegisterInfo::getLLVMRegNum(unsigned RegNum, bool isEH) const {
+ // FIXME: Most probably dwarf numbers differs for Linux and Darwin
+ unsigned Flavour = Subtarget.isPPC64() ?
+ DWARFFlavour::PPC64 : DWARFFlavour::PPC32;
+
+ return PPCGenRegisterInfo::getLLVMRegNumFull(RegNum, Flavour);
+}
+
#include "PPCGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
return SparcGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+int SparcRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ return SparcGenRegisterInfo::getLLVMRegNumFull(DwarfRegNo,0);
+}
+
#include "SparcGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
return -1;
}
+int SystemZRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ assert(0 && "What is the dwarf register number");
+ return -1;
+}
+
+
#include "SystemZGenRegisterInfo.inc"
unsigned getEHHandlerRegister() const;
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
&TM.getSubtarget<X86Subtarget>()));
}
+StringRef X86ATTInstPrinter::getRegName(unsigned RegNo) const {
+ return getRegisterName(RegNo);
+}
+
void X86ATTInstPrinter::printInst(const MCInst *MI, raw_ostream &OS) {
// Try to print any aliases first.
if (!printAliasInstr(MI, OS))
public:
X86ATTInstPrinter(TargetMachine &TM, const MCAsmInfo &MAI);
+ StringRef getRegName(unsigned RegNo) const;
virtual void printInst(const MCInst *MI, raw_ostream &OS);
virtual StringRef getOpcodeName(unsigned Opcode) const;
#define GET_INSTRUCTION_NAME
#include "X86GenAsmWriter1.inc"
+StringRef X86IntelInstPrinter::getRegName(unsigned RegNo) const {
+ return getRegisterName(RegNo);
+}
+
void X86IntelInstPrinter::printInst(const MCInst *MI, raw_ostream &OS) {
printInstruction(MI, OS);
X86IntelInstPrinter(TargetMachine &TM, const MCAsmInfo &MAI)
: MCInstPrinter(MAI) {}
+ StringRef getRegName(unsigned RegNo) const;
virtual void printInst(const MCInst *MI, raw_ostream &OS);
virtual StringRef getOpcodeName(unsigned Opcode) const;
}
}
-/// getDwarfRegNum - This function maps LLVM register identifiers to the DWARF
-/// specific numbering, used in debug info and exception tables.
-int X86RegisterInfo::getDwarfRegNum(unsigned RegNo, bool isEH) const {
- const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
- unsigned Flavour = DWARFFlavour::X86_64;
-
+static unsigned getFlavour(const X86Subtarget *Subtarget, bool isEH) {
if (!Subtarget->is64Bit()) {
if (Subtarget->isTargetDarwin()) {
if (isEH)
- Flavour = DWARFFlavour::X86_32_DarwinEH;
+ return DWARFFlavour::X86_32_DarwinEH;
else
- Flavour = DWARFFlavour::X86_32_Generic;
+ return DWARFFlavour::X86_32_Generic;
} else if (Subtarget->isTargetCygMing()) {
// Unsupported by now, just quick fallback
- Flavour = DWARFFlavour::X86_32_Generic;
+ return DWARFFlavour::X86_32_Generic;
} else {
- Flavour = DWARFFlavour::X86_32_Generic;
+ return DWARFFlavour::X86_32_Generic;
}
}
+ return DWARFFlavour::X86_64;
+}
+
+/// getDwarfRegNum - This function maps LLVM register identifiers to the DWARF
+/// specific numbering, used in debug info and exception tables.
+int X86RegisterInfo::getDwarfRegNum(unsigned RegNo, bool isEH) const {
+ const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
+ unsigned Flavour = getFlavour(Subtarget, isEH);
return X86GenRegisterInfo::getDwarfRegNumFull(RegNo, Flavour);
}
+/// getLLVMRegNum - This function maps DWARF register numbers to LLVM register.
+int X86RegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
+ unsigned Flavour = getFlavour(Subtarget, isEH);
+
+ return X86GenRegisterInfo::getLLVMRegNumFull(DwarfRegNo, Flavour);
+}
+
int
X86RegisterInfo::getSEHRegNum(unsigned i) const {
int reg = getX86RegNum(i);
/// getDwarfRegNum - allows modification of X86GenRegisterInfo::getDwarfRegNum
/// (created by TableGen) for target dependencies.
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
// FIXME: This should be tablegen'd like getDwarfRegNum is
int getSEHRegNum(unsigned i) const;
return XCoreGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
+int XCoreRegisterInfo::getLLVMRegNum(unsigned DwarfRegNo, bool isEH) const {
+ return XCoreGenRegisterInfo::getLLVMRegNumFull(DwarfRegNo,0);
+}
+
unsigned XCoreRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
//! Get DWARF debugging register number
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+ int getLLVMRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
; Check that eh_return & unwind_init were properly lowered
-; RUN: llc < %s | grep %ebp | count 7
+; RUN: llc < %s | grep %ebp | count 9
; RUN: llc < %s | grep %ecx | count 5
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
; Check that eh_return & unwind_init were properly lowered
-; RUN: llc < %s | grep %rbp | count 5
+; RUN: llc < %s | grep %rbp | count 7
; RUN: llc < %s | grep %rcx | count 3
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
; CHECK-FP-NEXT: :
; CHECK-FP-NEXT: .cfi_def_cfa_offset 16
; CHECK-FP-NEXT: :
-; CHECK-FP-NEXT: .cfi_offset 6, -16
+; CHECK-FP-NEXT: .cfi_offset %rbp, -16
; CHECK-FP-NEXT: movq %rsp, %rbp
; CHECK-FP-NEXT: :
-; CHECK-FP-NEXT: .cfi_def_cfa_register 6
+; CHECK-FP-NEXT: .cfi_def_cfa_register %rbp
; CHECK-FP-NEXT: nop
; CHECK-FP-NEXT: :
; CHECK-FP-NEXT: .cfi_endproc
; CHECK-NEXT: :
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: :
-; CHECK-NEXT: .cfi_offset 6, -16
+; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq %rsp, %rbp
; CHECK-NEXT: :
-; CHECK-NEXT: .cfi_def_cfa_register 6
+; CHECK-NEXT: .cfi_def_cfa_register %rbp
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: ret
<< "(int CallFrameSetupOpcode = -1, int CallFrameDestroyOpcode = -1);\n"
<< " virtual int getDwarfRegNumFull(unsigned RegNum, "
<< "unsigned Flavour) const;\n"
+ << " virtual int getLLVMRegNumFull(unsigned DwarfRegNum, "
+ << "unsigned Flavour) const;\n"
<< " virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const = 0;\n"
<< " virtual bool needsStackRealignment(const MachineFunction &) const\n"
<< " { return false; }\n"
for (unsigned i = I->second.size(), e = maxLength; i != e; ++i)
I->second.push_back(-1);
+ // Emit reverse information about the dwarf register numbers.
+ OS << "int " << ClassName << "::getLLVMRegNumFull(unsigned DwarfRegNum, "
+ << "unsigned Flavour) const {\n"
+ << " switch (Flavour) {\n"
+ << " default:\n"
+ << " assert(0 && \"Unknown DWARF flavour\");\n"
+ << " return -1;\n";
+
+ for (unsigned i = 0, e = maxLength; i != e; ++i) {
+ OS << " case " << i << ":\n"
+ << " switch (DwarfRegNum) {\n"
+ << " default:\n"
+ << " assert(0 && \"Invalid DwarfRegNum\");\n"
+ << " return -1;\n";
+
+ for (DwarfRegNumsMapTy::iterator
+ I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) {
+ int DwarfRegNo = I->second[i];
+ if (DwarfRegNo >= 0)
+ OS << " case " << DwarfRegNo << ":\n"
+ << " return " << getQualifiedName(I->first) << ";\n";
+ }
+ OS << " };\n";
+ }
+
+ OS << " };\n}\n\n";
+
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
Record *Reg = Regs[i].TheDef;
const RecordVal *V = Reg->getValue("DwarfAlias");