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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 "llvm/CodeGen/AsmPrinter.h"
#include "llvm/ADT/Statistic.h"
#include <set>
namespace llvm {
namespace x86 {
extern Statistic<> EmittedInsts;
struct X86SharedAsmPrinter : public AsmPrinter {
X86SharedAsmPrinter(std::ostream &O, TargetMachine &TM)
: AsmPrinter(O, TM), forCygwin(false), forDarwin(false) { }
bool doInitialization(Module &M);
void printConstantPool(MachineConstantPool *MCP);
bool doFinalization(Module &M);
bool forCygwin;
bool forDarwin;
// 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;
if (MI->getOperand(Op).isConstantPoolIndex()) 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());
}
// SwitchSection - Switch to the specified section of the executable if we are
// not already in it!
inline static void SwitchSection(std::ostream &OS, std::string &CurSection,
const char *NewSection) {
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
OS << "\t" << NewSection << "\n";
}
}
};
} // end namespace x86
} // end namespace llvm
#endif
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