1 //===-- X86AsmPrinter.h - Convert X86 LLVM code to Intel assembly ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file the shared super class printer that converts from our internal
11 // representation of machine-dependent LLVM code to Intel and AT&T format
12 // assembly language. This printer is the output mechanism used by `llc'.
14 //===----------------------------------------------------------------------===//
16 #ifndef X86ASMPRINTER_H
17 #define X86ASMPRINTER_H
20 #include "X86TargetMachine.h"
21 #include "llvm/CodeGen/AsmPrinter.h"
22 #include "llvm/CodeGen/DwarfWriter.h"
23 #include "llvm/CodeGen/MachineDebugInfo.h"
24 #include "llvm/ADT/Statistic.h"
30 extern Statistic<> EmittedInsts;
32 // FIXME: Move this to CodeGen/AsmPrinter.h
39 struct VISIBILITY_HIDDEN X86SharedAsmPrinter : public AsmPrinter {
42 X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM,
43 const TargetAsmInfo *T)
44 : AsmPrinter(O, TM, T), DW(O, this, T), X86PICStyle(PICStyle::GOT) {
45 Subtarget = &TM.getSubtarget<X86Subtarget>();
48 bool doInitialization(Module &M);
49 bool doFinalization(Module &M);
51 void getAnalysisUsage(AnalysisUsage &AU) const {
53 if (Subtarget->isTargetDarwin()) {
54 AU.addRequired<MachineDebugInfo>();
56 MachineFunctionPass::getAnalysisUsage(AU);
59 PICStyle::X86AsmPICStyle X86PICStyle;
61 const X86Subtarget *Subtarget;
63 // Necessary for Darwin to print out the apprioriate types of linker stubs
64 std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
66 // Necessary for dllexport support
67 std::set<std::string> DLLExportedFns, DLLExportedGVs;
69 inline static bool isScale(const MachineOperand &MO) {
70 return MO.isImmediate() &&
71 (MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
72 MO.getImmedValue() == 4 || MO.getImmedValue() == 8);
75 inline static bool isMem(const MachineInstr *MI, unsigned Op) {
76 if (MI->getOperand(Op).isFrameIndex()) return true;
77 return Op+4 <= MI->getNumOperands() &&
78 MI->getOperand(Op ).isRegister() && isScale(MI->getOperand(Op+1)) &&
79 MI->getOperand(Op+2).isRegister() &&
80 (MI->getOperand(Op+3).isImmediate() ||
81 MI->getOperand(Op+3).isGlobalAddress() ||
82 MI->getOperand(Op+3).isConstantPoolIndex() ||
83 MI->getOperand(Op+3).isJumpTableIndex());
87 } // end namespace llvm