1 //===-- X86ATTAsmPrinter.h - Convert X86 LLVM code to AT&T assembly -------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // AT&T assembly code printer class.
12 //===----------------------------------------------------------------------===//
14 #ifndef X86ATTASMPRINTER_H
15 #define X86ATTASMPRINTER_H
18 #include "../X86MachineFunctionInfo.h"
19 #include "../X86TargetMachine.h"
20 #include "llvm/ADT/StringSet.h"
21 #include "llvm/CodeGen/AsmPrinter.h"
22 #include "llvm/CodeGen/DwarfWriter.h"
23 #include "llvm/CodeGen/MachineModuleInfo.h"
24 #include "llvm/CodeGen/ValueTypes.h"
25 #include "llvm/Support/Compiler.h"
29 class MachineJumpTableInfo;
36 class VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
37 const X86Subtarget *Subtarget;
39 explicit X86ATTAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
40 const MCAsmInfo *T, bool V)
41 : AsmPrinter(O, TM, T, V) {
42 Subtarget = &TM.getSubtarget<X86Subtarget>();
45 virtual const char *getPassName() const {
46 return "X86 AT&T-Style Assembly Printer";
49 void getAnalysisUsage(AnalysisUsage &AU) const {
51 if (Subtarget->isTargetDarwin() ||
52 Subtarget->isTargetELF() ||
53 Subtarget->isTargetCygMing()) {
54 AU.addRequired<MachineModuleInfo>();
56 AU.addRequired<DwarfWriter>();
57 AsmPrinter::getAnalysisUsage(AU);
60 bool doFinalization(Module &M);
62 /// printInstruction - This method is automatically generated by tablegen
63 /// from the instruction set description. This method returns true if the
64 /// machine instruction was sufficiently described to print it, otherwise it
66 void printInstruction(const MachineInstr *MI);
69 // New MCInst printing stuff.
70 void printInstruction(const MCInst *MI);
71 MCSymbol *GetPICBaseSymbol();
72 MCOperand LowerJumpTableOperand(const MachineOperand &MO);
73 MCOperand LowerGlobalAddressOperand(const MachineOperand &MO);
74 MCOperand LowerExternalSymbolOperand(const MachineOperand &MO);
76 virtual void printMCInst(const MCInst *MI) { printInstruction(MI); }
78 void printSymbolOperand(const MachineOperand &MO);
79 void printOperand(const MCInst *MI, unsigned OpNo,
80 const char *Modifier = 0);
81 void printMemReference(const MCInst *MI, unsigned Op);
82 void printLeaMemReference(const MCInst *MI, unsigned Op);
83 void printSSECC(const MCInst *MI, unsigned Op);
84 void printPICLabel(const MCInst *MI, unsigned Op);
85 void print_pcrel_imm(const MCInst *MI, unsigned OpNo);
87 void printi8mem(const MCInst *MI, unsigned OpNo) {
88 printMemReference(MI, OpNo);
90 void printi16mem(const MCInst *MI, unsigned OpNo) {
91 printMemReference(MI, OpNo);
93 void printi32mem(const MCInst *MI, unsigned OpNo) {
94 printMemReference(MI, OpNo);
96 void printi64mem(const MCInst *MI, unsigned OpNo) {
97 printMemReference(MI, OpNo);
99 void printi128mem(const MCInst *MI, unsigned OpNo) {
100 printMemReference(MI, OpNo);
102 void printf32mem(const MCInst *MI, unsigned OpNo) {
103 printMemReference(MI, OpNo);
105 void printf64mem(const MCInst *MI, unsigned OpNo) {
106 printMemReference(MI, OpNo);
108 void printf80mem(const MCInst *MI, unsigned OpNo) {
109 printMemReference(MI, OpNo);
111 void printf128mem(const MCInst *MI, unsigned OpNo) {
112 printMemReference(MI, OpNo);
114 void printlea32mem(const MCInst *MI, unsigned OpNo) {
115 printLeaMemReference(MI, OpNo);
117 void printlea64mem(const MCInst *MI, unsigned OpNo) {
118 printLeaMemReference(MI, OpNo);
120 void printlea64_32mem(const MCInst *MI, unsigned OpNo) {
121 printLeaMemReference(MI, OpNo);
126 // These methods are used by the tablegen'erated instruction printer.
127 void printOperand(const MachineInstr *MI, unsigned OpNo,
128 const char *Modifier = 0);
129 void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
130 void printi8mem(const MachineInstr *MI, unsigned OpNo) {
131 printMemReference(MI, OpNo);
133 void printi16mem(const MachineInstr *MI, unsigned OpNo) {
134 printMemReference(MI, OpNo);
136 void printi32mem(const MachineInstr *MI, unsigned OpNo) {
137 printMemReference(MI, OpNo);
139 void printi64mem(const MachineInstr *MI, unsigned OpNo) {
140 printMemReference(MI, OpNo);
142 void printi128mem(const MachineInstr *MI, unsigned OpNo) {
143 printMemReference(MI, OpNo);
145 void printi256mem(const MachineInstr *MI, unsigned OpNo) {
146 printMemReference(MI, OpNo);
148 void printf32mem(const MachineInstr *MI, unsigned OpNo) {
149 printMemReference(MI, OpNo);
151 void printf64mem(const MachineInstr *MI, unsigned OpNo) {
152 printMemReference(MI, OpNo);
154 void printf80mem(const MachineInstr *MI, unsigned OpNo) {
155 printMemReference(MI, OpNo);
157 void printf128mem(const MachineInstr *MI, unsigned OpNo) {
158 printMemReference(MI, OpNo);
160 void printf256mem(const MachineInstr *MI, unsigned OpNo) {
161 printMemReference(MI, OpNo);
163 void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
164 printLeaMemReference(MI, OpNo);
166 void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
167 printLeaMemReference(MI, OpNo);
169 void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
170 printLeaMemReference(MI, OpNo, "subreg64");
173 bool printAsmMRegister(const MachineOperand &MO, char Mode);
174 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
175 unsigned AsmVariant, const char *ExtraCode);
176 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
177 unsigned AsmVariant, const char *ExtraCode);
179 void printMachineInstruction(const MachineInstr *MI);
180 void printSSECC(const MachineInstr *MI, unsigned Op);
181 void printMemReference(const MachineInstr *MI, unsigned Op,
182 const char *Modifier=NULL);
183 void printLeaMemReference(const MachineInstr *MI, unsigned Op,
184 const char *Modifier=NULL);
185 void printPICJumpTableSetLabel(unsigned uid,
186 const MachineBasicBlock *MBB) const;
187 void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
188 const MachineBasicBlock *MBB) const {
189 AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
191 void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
192 const MachineBasicBlock *MBB,
195 void printPICLabel(const MachineInstr *MI, unsigned Op);
196 void PrintGlobalVariable(const GlobalVariable* GVar);
198 void PrintPICBaseSymbol() const;
200 bool runOnMachineFunction(MachineFunction &F);
202 void emitFunctionHeader(const MachineFunction &MF);
204 // Necessary for Darwin to print out the apprioriate types of linker stubs
205 StringMap<std::string> FnStubs, GVStubs, HiddenGVStubs;
207 // Necessary for dllexport support
208 StringSet<> CygMingStubs, DLLExportedFns, DLLExportedGVs;
210 // We have to propagate some information about MachineFunction to
211 // AsmPrinter. It's ok, when we're printing the function, since we have
212 // access to MachineFunction and can get the appropriate MachineFunctionInfo.
213 // Unfortunately, this is not possible when we're printing reference to
214 // Function (e.g. calling it and so on). Even more, there is no way to get the
215 // corresponding MachineFunctions: it can even be not created at all. That's
216 // why we should use additional structure, when we're collecting all necessary
219 // This structure is using e.g. for name decoration for stdcall & fastcall'ed
220 // function, since we have to use arguments' size for decoration.
221 typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
222 FMFInfoMap FunctionInfoMap;
224 void DecorateCygMingName(std::string &Name, const GlobalValue *GV);
227 } // end namespace llvm