llvm-6502/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.h
Ulrich Weigand 9679c47a07 [PowerPC] Support absolute branches
There is currently only limited support for the "absolute" variants
of branch instructions.  This patch adds support for the absolute
variants of all branches that are currently otherwise supported.

This requires adding new fixup types so that the correct variant
of relocation type can be selected by the object writer.

While the compiler will continue to usually choose the relative
branch variants, this will allow the asm parser to fully support
the absolute branches, with either immediate (numerical) or
symbolic target addresses.

No change in code generation intended.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184721 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-24 11:03:33 +00:00

64 lines
2.2 KiB
C++

//===- PPCInstPrinter.h - Convert PPC MCInst to assembly syntax -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class prints an PPC MCInst to a .s file.
//
//===----------------------------------------------------------------------===//
#ifndef PPCINSTPRINTER_H
#define PPCINSTPRINTER_H
#include "llvm/MC/MCInstPrinter.h"
namespace llvm {
class MCOperand;
class PPCInstPrinter : public MCInstPrinter {
// 0 -> AIX, 1 -> Darwin.
unsigned SyntaxVariant;
public:
PPCInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
const MCRegisterInfo &MRI, unsigned syntaxVariant)
: MCInstPrinter(MAI, MII, MRI), SyntaxVariant(syntaxVariant) {}
bool isDarwinSyntax() const {
return SyntaxVariant == 1;
}
virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
virtual void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot);
// Autogenerated by tblgen.
void printInstruction(const MCInst *MI, raw_ostream &O);
static const char *getRegisterName(unsigned RegNo);
void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printPredicateOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O, const char *Modifier = 0);
void printS5ImmOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printU5ImmOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printU6ImmOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printS16ImmOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printU16ImmOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printBranchOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printAbsBranchOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printcrbitm(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printMemRegImm(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printMemRegReg(const MCInst *MI, unsigned OpNo, raw_ostream &O);
};
} // end namespace llvm
#endif