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https://github.com/c64scene-ar/llvm-6502.git
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ab4022f196
2. Added partial debug support for mingw\cygwin targets (the same as
Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
for storing debug info by default, thus many (runtime) libraries has
this information included. These formats shouldn't be mixed in one binary
('stabs' & 'DWARF'), otherwise binutils tools will be confused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31311 91177308-0d34-0410-b5e6-96231b3b80d8
109 lines
3.7 KiB
C++
Executable File
109 lines
3.7 KiB
C++
Executable File
//===-- X86AsmPrinter.h - Convert X86 LLVM code to Intel assembly ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file the shared super class printer that converts from our internal
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// representation of machine-dependent LLVM code to Intel and AT&T format
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// assembly language. This printer is the output mechanism used by `llc'.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86ASMPRINTER_H
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#define X86ASMPRINTER_H
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#include "X86.h"
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#include "X86MachineFunctionInfo.h"
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#include "X86TargetMachine.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/DwarfWriter.h"
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#include "llvm/CodeGen/MachineDebugInfo.h"
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#include "llvm/ADT/Statistic.h"
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#include <set>
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namespace llvm {
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extern Statistic<> EmittedInsts;
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// FIXME: Move this to CodeGen/AsmPrinter.h
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namespace PICStyle {
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enum X86AsmPICStyle {
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Stub, GOT
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};
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}
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struct VISIBILITY_HIDDEN X86SharedAsmPrinter : public AsmPrinter {
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DwarfWriter DW;
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X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM,
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const TargetAsmInfo *T)
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: AsmPrinter(O, TM, T), DW(O, this, T), X86PICStyle(PICStyle::GOT) {
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Subtarget = &TM.getSubtarget<X86Subtarget>();
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}
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// We have to propagate some information about MachineFunction to
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// AsmPrinter. It's ok, when we're printing the function, since we have
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// access to MachineFunction and can get the appropriate MachineFunctionInfo.
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// Unfortunately, this is not possible when we're printing reference to
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// Function (e.g. calling it and so on). Even more, there is no way to get the
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// corresponding MachineFunctions: it can even be not created at all. That's
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// why we should use additional structure, when we're collecting all necessary
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// information.
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//
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// This structure is using e.g. for name decoration for stdcall & fastcall'ed
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// function, since we have to use arguments' size for decoration.
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typedef std::map<const Function*, X86FunctionInfo> FMFInfoMap;
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FMFInfoMap FunctionInfoMap;
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void decorateName(std::string& Name, const GlobalValue* GV);
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bool doInitialization(Module &M);
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bool doFinalization(Module &M);
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void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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if (Subtarget->isTargetDarwin() ||
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Subtarget->isTargetELF() ||
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Subtarget->isTargetCygwin()) {
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AU.addRequired<MachineDebugInfo>();
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}
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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PICStyle::X86AsmPICStyle X86PICStyle;
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const X86Subtarget *Subtarget;
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// Necessary for Darwin to print out the apprioriate types of linker stubs
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std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
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// Necessary for dllexport support
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std::set<std::string> DLLExportedFns, DLLExportedGVs;
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inline static bool isScale(const MachineOperand &MO) {
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return MO.isImmediate() &&
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(MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
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MO.getImmedValue() == 4 || MO.getImmedValue() == 8);
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}
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inline static bool isMem(const MachineInstr *MI, unsigned Op) {
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if (MI->getOperand(Op).isFrameIndex()) return true;
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return Op+4 <= MI->getNumOperands() &&
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MI->getOperand(Op ).isRegister() && isScale(MI->getOperand(Op+1)) &&
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MI->getOperand(Op+2).isRegister() &&
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(MI->getOperand(Op+3).isImmediate() ||
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MI->getOperand(Op+3).isGlobalAddress() ||
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MI->getOperand(Op+3).isConstantPoolIndex() ||
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MI->getOperand(Op+3).isJumpTableIndex());
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}
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};
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} // end namespace llvm
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#endif
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