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);
68 void printInstructionThroughMCStreamer(const MachineInstr *MI);
71 // New MCInst printing stuff.
72 void printInstruction(const MCInst *MI);
73 MCSymbol *GetPICBaseSymbol();
74 MCOperand LowerGlobalAddressOperand(const MachineOperand &MO);
75 MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO);
76 MCSymbol *GetJumpTableSymbol(const MachineOperand &MO);
77 MCSymbol *GetConstantPoolIndexSymbol(const MachineOperand &MO);
78 MCOperand LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym);
81 virtual void printMCInst(const MCInst *MI) { printInstruction(MI); }
83 void printSymbolOperand(const MachineOperand &MO);
84 void printOperand(const MCInst *MI, unsigned OpNo,
85 const char *Modifier = 0);
86 void printMemReference(const MCInst *MI, unsigned Op);
87 void printLeaMemReference(const MCInst *MI, unsigned Op);
88 void printSSECC(const MCInst *MI, unsigned Op);
89 void printPICLabel(const MCInst *MI, unsigned Op);
90 void print_pcrel_imm(const MCInst *MI, unsigned OpNo);
92 void printopaquemem(const MCInst *MI, unsigned OpNo) {
93 printMemReference(MI, OpNo);
96 void printi8mem(const MCInst *MI, unsigned OpNo) {
97 printMemReference(MI, OpNo);
99 void printi16mem(const MCInst *MI, unsigned OpNo) {
100 printMemReference(MI, OpNo);
102 void printi32mem(const MCInst *MI, unsigned OpNo) {
103 printMemReference(MI, OpNo);
105 void printi64mem(const MCInst *MI, unsigned OpNo) {
106 printMemReference(MI, OpNo);
108 void printi128mem(const MCInst *MI, unsigned OpNo) {
109 printMemReference(MI, OpNo);
111 void printf32mem(const MCInst *MI, unsigned OpNo) {
112 printMemReference(MI, OpNo);
114 void printf64mem(const MCInst *MI, unsigned OpNo) {
115 printMemReference(MI, OpNo);
117 void printf80mem(const MCInst *MI, unsigned OpNo) {
118 printMemReference(MI, OpNo);
120 void printf128mem(const MCInst *MI, unsigned OpNo) {
121 printMemReference(MI, OpNo);
123 void printlea32mem(const MCInst *MI, unsigned OpNo) {
124 printLeaMemReference(MI, OpNo);
126 void printlea64mem(const MCInst *MI, unsigned OpNo) {
127 printLeaMemReference(MI, OpNo);
129 void printlea64_32mem(const MCInst *MI, unsigned OpNo) {
130 printLeaMemReference(MI, OpNo);
135 // These methods are used by the tablegen'erated instruction printer.
136 void printOperand(const MachineInstr *MI, unsigned OpNo,
137 const char *Modifier = 0);
138 void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
140 void printopaquemem(const MachineInstr *MI, unsigned OpNo) {
141 printMemReference(MI, OpNo);
144 void printi8mem(const MachineInstr *MI, unsigned OpNo) {
145 printMemReference(MI, OpNo);
147 void printi16mem(const MachineInstr *MI, unsigned OpNo) {
148 printMemReference(MI, OpNo);
150 void printi32mem(const MachineInstr *MI, unsigned OpNo) {
151 printMemReference(MI, OpNo);
153 void printi64mem(const MachineInstr *MI, unsigned OpNo) {
154 printMemReference(MI, OpNo);
156 void printi128mem(const MachineInstr *MI, unsigned OpNo) {
157 printMemReference(MI, OpNo);
159 void printi256mem(const MachineInstr *MI, unsigned OpNo) {
160 printMemReference(MI, OpNo);
162 void printf32mem(const MachineInstr *MI, unsigned OpNo) {
163 printMemReference(MI, OpNo);
165 void printf64mem(const MachineInstr *MI, unsigned OpNo) {
166 printMemReference(MI, OpNo);
168 void printf80mem(const MachineInstr *MI, unsigned OpNo) {
169 printMemReference(MI, OpNo);
171 void printf128mem(const MachineInstr *MI, unsigned OpNo) {
172 printMemReference(MI, OpNo);
174 void printf256mem(const MachineInstr *MI, unsigned OpNo) {
175 printMemReference(MI, OpNo);
177 void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
178 printLeaMemReference(MI, OpNo);
180 void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
181 printLeaMemReference(MI, OpNo);
183 void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
184 printLeaMemReference(MI, OpNo, "subreg64");
187 bool printAsmMRegister(const MachineOperand &MO, char Mode);
188 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
189 unsigned AsmVariant, const char *ExtraCode);
190 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
191 unsigned AsmVariant, const char *ExtraCode);
193 void printMachineInstruction(const MachineInstr *MI);
194 void printSSECC(const MachineInstr *MI, unsigned Op);
195 void printMemReference(const MachineInstr *MI, unsigned Op,
196 const char *Modifier=NULL);
197 void printLeaMemReference(const MachineInstr *MI, unsigned Op,
198 const char *Modifier=NULL);
199 void printPICJumpTableSetLabel(unsigned uid,
200 const MachineBasicBlock *MBB) const;
201 void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
202 const MachineBasicBlock *MBB) const {
203 AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
205 void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
206 const MachineBasicBlock *MBB,
209 void printPICLabel(const MachineInstr *MI, unsigned Op);
210 void PrintGlobalVariable(const GlobalVariable* GVar);
212 void PrintPICBaseSymbol() const;
214 bool runOnMachineFunction(MachineFunction &F);
216 void emitFunctionHeader(const MachineFunction &MF);
218 // Necessary for Darwin to print out the apprioriate types of linker stubs
219 StringMap<std::string> FnStubs, GVStubs, HiddenGVStubs;
221 // Necessary for dllexport support
222 StringSet<> CygMingStubs, DLLExportedFns, DLLExportedGVs;
224 // We have to propagate some information about MachineFunction to
225 // AsmPrinter. It's ok, when we're printing the function, since we have
226 // access to MachineFunction and can get the appropriate MachineFunctionInfo.
227 // Unfortunately, this is not possible when we're printing reference to
228 // Function (e.g. calling it and so on). Even more, there is no way to get the
229 // corresponding MachineFunctions: it can even be not created at all. That's
230 // why we should use additional structure, when we're collecting all necessary
233 // This structure is using e.g. for name decoration for stdcall & fastcall'ed
234 // function, since we have to use arguments' size for decoration.
235 typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
236 FMFInfoMap FunctionInfoMap;
238 void DecorateCygMingName(std::string &Name, const GlobalValue *GV);
241 } // end namespace llvm