2007-06-25 15:11:25 +00:00
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//===-- X86ATTAsmPrinter.h - Convert X86 LLVM code to AT&T assembly -------===//
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2005-07-01 22:44:09 +00:00
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//
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 20:36:04 +00:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2005-07-01 22:44:09 +00:00
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//
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//===----------------------------------------------------------------------===//
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//
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// AT&T assembly code printer class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86ATTASMPRINTER_H
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#define X86ATTASMPRINTER_H
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2008-08-17 18:24:26 +00:00
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#include "../X86.h"
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#include "../X86MachineFunctionInfo.h"
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#include "../X86TargetMachine.h"
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2008-06-28 11:08:27 +00:00
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#include "llvm/ADT/StringSet.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/DwarfWriter.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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2005-07-01 22:44:09 +00:00
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#include "llvm/CodeGen/ValueTypes.h"
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2008-06-28 11:08:27 +00:00
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#include "llvm/Support/Compiler.h"
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2005-07-01 22:44:09 +00:00
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namespace llvm {
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2007-11-14 09:18:41 +00:00
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struct MachineJumpTableInfo;
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2008-06-28 11:08:27 +00:00
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2009-02-24 08:30:20 +00:00
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class VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
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2009-01-08 23:40:34 +00:00
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DwarfWriter *DW;
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2008-06-28 11:08:27 +00:00
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MachineModuleInfo *MMI;
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const X86Subtarget *Subtarget;
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2009-02-24 08:30:20 +00:00
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public:
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2008-08-21 00:14:44 +00:00
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X86ATTAsmPrinter(raw_ostream &O, X86TargetMachine &TM,
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2009-03-25 01:47:28 +00:00
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const TargetAsmInfo *T, bool F, bool V)
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: AsmPrinter(O, TM, T, F, V), DW(0), MMI(0) {
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2008-06-28 11:08:27 +00:00
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Subtarget = &TM.getSubtarget<X86Subtarget>();
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}
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2005-07-01 22:44:09 +00:00
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virtual const char *getPassName() const {
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return "X86 AT&T-Style Assembly Printer";
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}
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2008-06-28 11:08:27 +00:00
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void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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if (Subtarget->isTargetDarwin() ||
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Subtarget->isTargetELF() ||
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Subtarget->isTargetCygMing()) {
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AU.addRequired<MachineModuleInfo>();
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}
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2009-01-08 23:40:34 +00:00
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AU.addRequired<DwarfWriter>();
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2008-06-28 11:08:27 +00:00
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AsmPrinter::getAnalysisUsage(AU);
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}
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bool doInitialization(Module &M);
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bool doFinalization(Module &M);
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2005-07-01 22:44:09 +00:00
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/// printInstruction - This method is automatically generated by tablegen
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/// from the instruction set description. This method returns true if the
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/// machine instruction was sufficiently described to print it, otherwise it
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/// returns false.
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bool printInstruction(const MachineInstr *MI);
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2006-02-06 23:41:19 +00:00
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// These methods are used by the tablegen'erated instruction printer.
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void printOperand(const MachineInstr *MI, unsigned OpNo,
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2006-12-05 19:50:18 +00:00
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const char *Modifier = 0, bool NotRIPRel = false);
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2005-11-30 18:54:35 +00:00
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void printi8mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2005-11-30 18:54:35 +00:00
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void printi16mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printi32mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printi64mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2006-02-22 02:26:30 +00:00
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void printi128mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2005-11-30 18:54:35 +00:00
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void printf32mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printf64mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2007-08-05 18:49:15 +00:00
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void printf80mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2006-01-31 22:28:30 +00:00
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void printf128mem(const MachineInstr *MI, unsigned OpNo) {
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2005-11-30 18:54:35 +00:00
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printMemReference(MI, OpNo);
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}
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2006-09-08 06:48:29 +00:00
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void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo, "subreg64");
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}
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2008-06-28 11:08:27 +00:00
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2006-04-28 23:19:39 +00:00
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bool printAsmMRegister(const MachineOperand &MO, const char Mode);
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2008-06-28 11:09:48 +00:00
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bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
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2006-04-28 21:19:05 +00:00
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unsigned AsmVariant, const char *ExtraCode);
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2008-06-28 11:09:48 +00:00
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bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
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2006-04-28 21:19:05 +00:00
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unsigned AsmVariant, const char *ExtraCode);
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2008-06-28 11:08:27 +00:00
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2006-04-28 23:11:40 +00:00
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void printMachineInstruction(const MachineInstr *MI);
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2005-11-30 18:54:35 +00:00
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void printSSECC(const MachineInstr *MI, unsigned Op);
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2006-09-08 06:48:29 +00:00
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void printMemReference(const MachineInstr *MI, unsigned Op,
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const char *Modifier=NULL);
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Much improved pic jumptable codegen:
Then:
call "L1$pb"
"L1$pb":
popl %eax
...
LBB1_1: # entry
imull $4, %ecx, %ecx
leal LJTI1_0-"L1$pb"(%eax), %edx
addl LJTI1_0-"L1$pb"(%ecx,%eax), %edx
jmpl *%edx
.align 2
.set L1_0_set_3,LBB1_3-LJTI1_0
.set L1_0_set_2,LBB1_2-LJTI1_0
.set L1_0_set_5,LBB1_5-LJTI1_0
.set L1_0_set_4,LBB1_4-LJTI1_0
LJTI1_0:
.long L1_0_set_3
.long L1_0_set_2
Now:
call "L1$pb"
"L1$pb":
popl %eax
...
LBB1_1: # entry
addl LJTI1_0-"L1$pb"(%eax,%ecx,4), %eax
jmpl *%eax
.align 2
.set L1_0_set_3,LBB1_3-"L1$pb"
.set L1_0_set_2,LBB1_2-"L1$pb"
.set L1_0_set_5,LBB1_5-"L1$pb"
.set L1_0_set_4,LBB1_4-"L1$pb"
LJTI1_0:
.long L1_0_set_3
.long L1_0_set_2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43924 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-09 01:32:10 +00:00
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void printPICJumpTableSetLabel(unsigned uid,
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const MachineBasicBlock *MBB) const;
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void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
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const MachineBasicBlock *MBB) const {
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AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
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}
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2007-11-14 09:18:41 +00:00
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void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
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const MachineBasicBlock *MBB,
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unsigned uid) const;
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2008-06-28 11:08:27 +00:00
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2006-02-18 00:15:05 +00:00
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void printPICLabel(const MachineInstr *MI, unsigned Op);
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2008-06-28 11:09:32 +00:00
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void printModuleLevelGV(const GlobalVariable* GVar);
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2008-07-08 00:55:58 +00:00
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void printGVStub(const char *GV, const char *Prefix = NULL);
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2008-12-05 01:06:39 +00:00
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void printHiddenGVStub(const char *GV, const char *Prefix = NULL);
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2008-07-08 00:55:58 +00:00
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2005-07-01 22:44:09 +00:00
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bool runOnMachineFunction(MachineFunction &F);
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2008-06-28 11:08:27 +00:00
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2008-06-28 11:09:01 +00:00
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void emitFunctionHeader(const MachineFunction &MF);
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2008-06-28 11:08:27 +00:00
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// Necessary for Darwin to print out the apprioriate types of linker stubs
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2008-12-05 01:06:39 +00:00
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StringSet<> FnStubs, GVStubs, HiddenGVStubs;
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2008-06-28 11:08:27 +00:00
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// Necessary for dllexport support
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StringSet<> DLLExportedFns, DLLExportedGVs;
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// We have to propagate some information about MachineFunction to
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// AsmPrinter. It's ok, when we're printing the function, since we have
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// access to MachineFunction and can get the appropriate MachineFunctionInfo.
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// Unfortunately, this is not possible when we're printing reference to
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// Function (e.g. calling it and so on). Even more, there is no way to get the
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// corresponding MachineFunctions: it can even be not created at all. That's
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// why we should use additional structure, when we're collecting all necessary
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// information.
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//
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// This structure is using e.g. for name decoration for stdcall & fastcall'ed
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// function, since we have to use arguments' size for decoration.
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typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
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FMFInfoMap FunctionInfoMap;
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void decorateName(std::string& Name, const GlobalValue* GV);
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2005-07-01 22:44:09 +00:00
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};
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} // end namespace llvm
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#endif
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