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 LowerJumpTableOperand(const MachineOperand &MO);
75 MCOperand LowerGlobalAddressOperand(const MachineOperand &MO);
76 MCOperand LowerExternalSymbolOperand(const MachineOperand &MO);
78 virtual void printMCInst(const MCInst *MI) { printInstruction(MI); }
80 void printSymbolOperand(const MachineOperand &MO);
81 void printOperand(const MCInst *MI, unsigned OpNo,
82 const char *Modifier = 0);
83 void printMemReference(const MCInst *MI, unsigned Op);
84 void printLeaMemReference(const MCInst *MI, unsigned Op);
85 void printSSECC(const MCInst *MI, unsigned Op);
86 void printPICLabel(const MCInst *MI, unsigned Op);
87 void print_pcrel_imm(const MCInst *MI, unsigned OpNo);
89 void printi8mem(const MCInst *MI, unsigned OpNo) {
90 printMemReference(MI, OpNo);
92 void printi16mem(const MCInst *MI, unsigned OpNo) {
93 printMemReference(MI, OpNo);
95 void printi32mem(const MCInst *MI, unsigned OpNo) {
96 printMemReference(MI, OpNo);
98 void printi64mem(const MCInst *MI, unsigned OpNo) {
99 printMemReference(MI, OpNo);
101 void printi128mem(const MCInst *MI, unsigned OpNo) {
102 printMemReference(MI, OpNo);
104 void printf32mem(const MCInst *MI, unsigned OpNo) {
105 printMemReference(MI, OpNo);
107 void printf64mem(const MCInst *MI, unsigned OpNo) {
108 printMemReference(MI, OpNo);
110 void printf80mem(const MCInst *MI, unsigned OpNo) {
111 printMemReference(MI, OpNo);
113 void printf128mem(const MCInst *MI, unsigned OpNo) {
114 printMemReference(MI, OpNo);
116 void printlea32mem(const MCInst *MI, unsigned OpNo) {
117 printLeaMemReference(MI, OpNo);
119 void printlea64mem(const MCInst *MI, unsigned OpNo) {
120 printLeaMemReference(MI, OpNo);
122 void printlea64_32mem(const MCInst *MI, unsigned OpNo) {
123 printLeaMemReference(MI, OpNo);
128 // These methods are used by the tablegen'erated instruction printer.
129 void printOperand(const MachineInstr *MI, unsigned OpNo,
130 const char *Modifier = 0);
131 void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
132 void printi8mem(const MachineInstr *MI, unsigned OpNo) {
133 printMemReference(MI, OpNo);
135 void printi16mem(const MachineInstr *MI, unsigned OpNo) {
136 printMemReference(MI, OpNo);
138 void printi32mem(const MachineInstr *MI, unsigned OpNo) {
139 printMemReference(MI, OpNo);
141 void printi64mem(const MachineInstr *MI, unsigned OpNo) {
142 printMemReference(MI, OpNo);
144 void printi128mem(const MachineInstr *MI, unsigned OpNo) {
145 printMemReference(MI, OpNo);
147 void printi256mem(const MachineInstr *MI, unsigned OpNo) {
148 printMemReference(MI, OpNo);
150 void printf32mem(const MachineInstr *MI, unsigned OpNo) {
151 printMemReference(MI, OpNo);
153 void printf64mem(const MachineInstr *MI, unsigned OpNo) {
154 printMemReference(MI, OpNo);
156 void printf80mem(const MachineInstr *MI, unsigned OpNo) {
157 printMemReference(MI, OpNo);
159 void printf128mem(const MachineInstr *MI, unsigned OpNo) {
160 printMemReference(MI, OpNo);
162 void printf256mem(const MachineInstr *MI, unsigned OpNo) {
163 printMemReference(MI, OpNo);
165 void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
166 printLeaMemReference(MI, OpNo);
168 void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
169 printLeaMemReference(MI, OpNo);
171 void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
172 printLeaMemReference(MI, OpNo, "subreg64");
175 bool printAsmMRegister(const MachineOperand &MO, char Mode);
176 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
177 unsigned AsmVariant, const char *ExtraCode);
178 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
179 unsigned AsmVariant, const char *ExtraCode);
181 void printMachineInstruction(const MachineInstr *MI);
182 void printSSECC(const MachineInstr *MI, unsigned Op);
183 void printMemReference(const MachineInstr *MI, unsigned Op,
184 const char *Modifier=NULL);
185 void printLeaMemReference(const MachineInstr *MI, unsigned Op,
186 const char *Modifier=NULL);
187 void printPICJumpTableSetLabel(unsigned uid,
188 const MachineBasicBlock *MBB) const;
189 void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
190 const MachineBasicBlock *MBB) const {
191 AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
193 void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
194 const MachineBasicBlock *MBB,
197 void printPICLabel(const MachineInstr *MI, unsigned Op);
198 void PrintGlobalVariable(const GlobalVariable* GVar);
200 void PrintPICBaseSymbol() const;
202 bool runOnMachineFunction(MachineFunction &F);
204 void emitFunctionHeader(const MachineFunction &MF);
206 // Necessary for Darwin to print out the apprioriate types of linker stubs
207 StringMap<std::string> FnStubs, GVStubs, HiddenGVStubs;
209 // Necessary for dllexport support
210 StringSet<> CygMingStubs, DLLExportedFns, DLLExportedGVs;
212 // We have to propagate some information about MachineFunction to
213 // AsmPrinter. It's ok, when we're printing the function, since we have
214 // access to MachineFunction and can get the appropriate MachineFunctionInfo.
215 // Unfortunately, this is not possible when we're printing reference to
216 // Function (e.g. calling it and so on). Even more, there is no way to get the
217 // corresponding MachineFunctions: it can even be not created at all. That's
218 // why we should use additional structure, when we're collecting all necessary
221 // This structure is using e.g. for name decoration for stdcall & fastcall'ed
222 // function, since we have to use arguments' size for decoration.
223 typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
224 FMFInfoMap FunctionInfoMap;
226 void DecorateCygMingName(std::string &Name, const GlobalValue *GV);
229 } // end namespace llvm