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/MachineConstantPool.h"
24 #include "llvm/CodeGen/MachineDebugInfo.h"
25 #include "llvm/ADT/Statistic.h"
31 extern Statistic<> EmittedInsts;
33 /// X86DwarfWriter - Dwarf debug info writer customized for Darwin/Mac OS X
35 struct X86DwarfWriter : public DwarfWriter {
37 X86DwarfWriter(std::ostream &o, AsmPrinter *ap)
41 DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev";
42 DwarfInfoSection = ".section __DWARFA,__debug_info";
43 DwarfLineSection = ".section __DWARFA,__debug_line";
44 DwarfFrameSection = ".section __DWARFA,__debug_frame";
45 DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames";
46 DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes";
47 DwarfStrSection = ".section __DWARFA,__debug_str";
48 DwarfLocSection = ".section __DWARFA,__debug_loc";
49 DwarfARangesSection = ".section __DWARFA,__debug_aranges";
50 DwarfRangesSection = ".section __DWARFA,__debug_ranges";
51 DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo";
52 TextSection = ".text";
53 DataSection = ".data";
57 struct X86SharedAsmPrinter : public AsmPrinter {
60 X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM)
61 : AsmPrinter(O, TM), DW(O, this) {
62 Subtarget = &TM.getSubtarget<X86Subtarget>();
65 bool doInitialization(Module &M);
66 bool doFinalization(Module &M);
68 void getAnalysisUsage(AnalysisUsage &AU) const {
70 AU.addRequired<MachineDebugInfo>();
71 MachineFunctionPass::getAnalysisUsage(AU);
74 const char *DefaultTextSection; // "_text" for MASM, ".text" for others.
75 const char *DefaultDataSection; // "_data" for MASM, ".data" for others.
76 const X86Subtarget *Subtarget;
78 // Necessary for Darwin to print out the apprioriate types of linker stubs
79 std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
81 inline static bool isScale(const MachineOperand &MO) {
82 return MO.isImmediate() &&
83 (MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
84 MO.getImmedValue() == 4 || MO.getImmedValue() == 8);
87 inline static bool isMem(const MachineInstr *MI, unsigned Op) {
88 if (MI->getOperand(Op).isFrameIndex()) return true;
89 return Op+4 <= MI->getNumOperands() &&
90 MI->getOperand(Op ).isRegister() && isScale(MI->getOperand(Op+1)) &&
91 MI->getOperand(Op+2).isRegister() &&
92 (MI->getOperand(Op+3).isImmediate() ||
93 MI->getOperand(Op+3).isGlobalAddress() ||
94 MI->getOperand(Op+3).isConstantPoolIndex());
97 virtual void EmitConstantPool(MachineConstantPool *MCP);
98 void EmitConstantPool(MachineConstantPool *MCP,
99 std::vector<std::pair<MachineConstantPoolEntry, unsigned> > &CP,
100 const char *Section);
103 } // end namespace llvm