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https://github.com/c64scene-ar/llvm-6502.git
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57578766aa
available, the only thing this affects is that we produce .set in one case we didn't before, which shouldn't harm anything. Make EmitSectionOffset call EmitDifference instead of duplicating it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98005 91177308-0d34-0410-b5e6-96231b3b80d8
155 lines
4.9 KiB
C++
155 lines
4.9 KiB
C++
//===--- lib/CodeGen/DwarfPrinter.h - Dwarf Printer -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Emit general DWARF directives.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CODEGEN_ASMPRINTER_DWARFPRINTER_H__
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#define CODEGEN_ASMPRINTER_DWARFPRINTER_H__
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#include "llvm/CodeGen/MachineLocation.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/FormattedStream.h"
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#include <vector>
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namespace llvm {
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class AsmPrinter;
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class MachineFunction;
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class MachineModuleInfo;
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class Module;
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class MCAsmInfo;
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class TargetData;
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class TargetRegisterInfo;
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class GlobalValue;
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class MCSymbol;
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class Twine;
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class DwarfPrinter {
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protected:
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~DwarfPrinter() {}
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//===-------------------------------------------------------------==---===//
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// Core attributes used by the DWARF printer.
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//
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/// O - Stream to .s file.
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raw_ostream &O;
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/// Asm - Target of Dwarf emission.
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AsmPrinter *Asm;
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/// MAI - Target asm information.
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const MCAsmInfo *MAI;
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/// TD - Target data.
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const TargetData *TD;
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/// RI - Register Information.
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const TargetRegisterInfo *RI;
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/// M - Current module.
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Module *M;
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/// MF - Current machine function.
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const MachineFunction *MF;
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/// MMI - Collected machine module information.
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MachineModuleInfo *MMI;
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/// SubprogramCount - The running count of functions being compiled.
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unsigned SubprogramCount;
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/// Flavor - A unique string indicating what dwarf producer this is, used to
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/// unique labels.
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const char * const Flavor;
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/// SetCounter - A unique number for each '.set' directive.
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unsigned SetCounter;
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DwarfPrinter(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T,
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const char *flavor);
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public:
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//===------------------------------------------------------------------===//
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// Accessors.
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//
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const AsmPrinter *getAsm() const { return Asm; }
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MachineModuleInfo *getMMI() const { return MMI; }
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const MCAsmInfo *getMCAsmInfo() const { return MAI; }
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const TargetData *getTargetData() const { return TD; }
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/// getDWLabel - Return the MCSymbol corresponding to the assembler temporary
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/// label with the specified stem and unique ID.
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MCSymbol *getDWLabel(const char *Name, unsigned ID) const;
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/// getTempLabel - Return an assembler temporary label with the specified
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/// name.
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MCSymbol *getTempLabel(const char *Name) const;
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/// SizeOfEncodedValue - Return the size of the encoding in bytes.
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unsigned SizeOfEncodedValue(unsigned Encoding) const;
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void PrintRelDirective(unsigned Encoding) const;
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void PrintRelDirective(bool Force32Bit = false,
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bool isInSection = false) const;
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/// EOL - Print a newline character to asm stream. If a comment is present
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/// then it will be printed first. Comments should not contain '\n'.
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void EOL(const Twine &Comment) const;
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/// EmitEncodingByte - Emit a .byte 42 directive that corresponds to an
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/// encoding. If verbose assembly output is enabled, we output comments
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/// describing the encoding. Desc is a string saying what the encoding is
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/// specifying (e.g. "LSDA").
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void EmitEncodingByte(unsigned Val, const char *Desc);
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/// EmitCFAByte - Emit a .byte 42 directive for a DW_CFA_xxx value.
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void EmitCFAByte(unsigned Val);
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/// EmitSLEB128 - emit the specified signed leb128 value.
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void EmitSLEB128(int Value, const char *Desc) const;
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/// EmitULEB128 - emit the specified unsigned leb128 value.
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void EmitULEB128(unsigned Value, const char *Desc = 0,
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unsigned PadTo = 0) const;
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/// PrintLabelName - Print label name in form used by Dwarf writer.
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///
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void PrintLabelName(const MCSymbol *Label) const;
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void PrintLabelName(const char *Tag, unsigned Number,
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const char *Suffix) const;
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/// EmitReference - Emit a reference to a label.
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///
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void EmitReference(const MCSymbol *Label, bool IsPCRelative = false,
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bool Force32Bit = false) const;
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void EmitReference(const MCSymbol *Sym, unsigned Encoding) const;
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void EmitReference(const GlobalValue *GV, unsigned Encoding) const;
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/// EmitDifference - Emit the difference between two labels.
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void EmitDifference(const MCSymbol *LabelHi, const MCSymbol *LabelLo,
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bool IsSmall = false);
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void EmitSectionOffset(const MCSymbol *Label, const MCSymbol *Section,
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bool IsSmall = false, bool isEH = false);
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/// EmitFrameMoves - Emit frame instructions to describe the layout of the
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/// frame.
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void EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
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const std::vector<MachineMove> &Moves, bool isEH);
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};
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} // end llvm namespace
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#endif
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