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//===-- X86AsmPrinter.h - Convert X86 LLVM code to Intel assembly ---------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file the shared super class printer that converts from our internal
// representation of machine-dependent LLVM code to Intel and AT&T format
// assembly language. This printer is the output mechanism used by `llc'.
//
//===----------------------------------------------------------------------===//
#ifndef X86ASMPRINTER_H
#define X86ASMPRINTER_H
#include "X86.h"
#include "X86TargetMachine.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineDebugInfo.h"
#include "llvm/ADT/Statistic.h"
#include <set>
namespace llvm {
extern Statistic<> EmittedInsts;
/// X86DwarfWriter - Dwarf debug info writer customized for Darwin/Mac OS X
///
struct X86DwarfWriter : public DwarfWriter {
// Ctor.
X86DwarfWriter(std::ostream &o, AsmPrinter *ap)
: DwarfWriter(o, ap)
{
needsSet = true;
DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev";
DwarfInfoSection = ".section __DWARFA,__debug_info";
DwarfLineSection = ".section __DWARFA,__debug_line";
DwarfFrameSection = ".section __DWARFA,__debug_frame";
DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames";
DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes";
DwarfStrSection = ".section __DWARFA,__debug_str";
DwarfLocSection = ".section __DWARFA,__debug_loc";
DwarfARangesSection = ".section __DWARFA,__debug_aranges";
DwarfRangesSection = ".section __DWARFA,__debug_ranges";
DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo";
TextSection = ".text";
DataSection = ".data";
}
};
struct X86SharedAsmPrinter : public AsmPrinter {
X86DwarfWriter DW;
X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM)
: AsmPrinter(O, TM), DW(O, this) {
Subtarget = &TM.getSubtarget<X86Subtarget>();
}
bool doInitialization(Module &M);
bool doFinalization(Module &M);
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<MachineDebugInfo>();
MachineFunctionPass::getAnalysisUsage(AU);
}
const char *DefaultTextSection; // "_text" for MASM, ".text" for others.
const char *DefaultDataSection; // "_data" for MASM, ".data" for others.
const X86Subtarget *Subtarget;
// Necessary for Darwin to print out the apprioriate types of linker stubs
std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
inline static bool isScale(const MachineOperand &MO) {
return MO.isImmediate() &&
(MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
MO.getImmedValue() == 4 || MO.getImmedValue() == 8);
}
inline static bool isMem(const MachineInstr *MI, unsigned Op) {
if (MI->getOperand(Op).isFrameIndex()) return true;
return Op+4 <= MI->getNumOperands() &&
MI->getOperand(Op ).isRegister() && isScale(MI->getOperand(Op+1)) &&
MI->getOperand(Op+2).isRegister() &&
(MI->getOperand(Op+3).isImmediate() ||
MI->getOperand(Op+3).isGlobalAddress() ||
MI->getOperand(Op+3).isConstantPoolIndex());
}
virtual void EmitConstantPool(MachineConstantPool *MCP);
void EmitConstantPool(MachineConstantPool *MCP,
std::vector<std::pair<MachineConstantPoolEntry, unsigned> > &CP,
const char *Section);
};
} // end namespace llvm
#endif
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