mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-19 03:29:22 +00:00
37efe67645
x86 and ppc for 100% dense switch statements when relocations are non-PIC. This support will be extended and enhanced in the coming days to support PIC, and less dense forms of jump tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27947 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
3.3 KiB
C++
Executable File
98 lines
3.3 KiB
C++
Executable File
//===-- 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/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), forDarwin(false) { }
|
|
|
|
bool doInitialization(Module &M);
|
|
bool doFinalization(Module &M);
|
|
|
|
void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
AU.setPreservesAll();
|
|
AU.addRequired<MachineDebugInfo>();
|
|
MachineFunctionPass::getAnalysisUsage(AU);
|
|
}
|
|
|
|
bool forDarwin; // FIXME: eliminate.
|
|
|
|
// 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 printBasicBlockLabel(const MachineBasicBlock *MBB) const;
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|