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//===-- X86TargetAsmInfo.cpp - X86 asm properties ---------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declarations of the X86TargetAsmInfo properties.
//
//===----------------------------------------------------------------------===//
#include "X86TargetAsmInfo.h"
#include "X86TargetMachine.h"
#include "X86Subtarget.h"
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Intrinsics.h"
#include "llvm/Module.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
using namespace llvm::dwarf;
const char *const llvm::x86_asm_table[] = {
"{si}", "S",
"{di}", "D",
"{ax}", "a",
"{cx}", "c",
"{memory}", "memory",
"{flags}", "",
"{dirflag}", "",
"{fpsr}", "",
"{cc}", "cc",
0,0};
X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
X86TargetAsmInfo<DarwinTargetAsmInfo>(TM) {
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
bool is64Bit = Subtarget->is64Bit();
AlignmentIsInBytes = false;
TextAlignFillValue = 0x90;
if (!is64Bit)
Data64bitsDirective = 0; // we can't emit a 64-bit unit
ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
LCOMMDirective = "\t.lcomm\t";
// Leopard and above support aligned common symbols.
COMMDirectiveTakesAlignment = (Subtarget->getDarwinVers() >= 9);
HasDotTypeDotSizeDirective = false;
if (is64Bit) {
PersonalityPrefix = "";
PersonalitySuffix = "+4@GOTPCREL";
} else {
PersonalityPrefix = "L";
PersonalitySuffix = "$non_lazy_ptr";
}
InlineAsmStart = "## InlineAsm Start";
InlineAsmEnd = "## InlineAsm End";
CommentString = "##";
SetDirective = "\t.set";
PCSymbol = ".";
UsedDirective = "\t.no_dead_strip\t";
ProtectedDirective = "\t.globl\t";
SupportsDebugInformation = true;
DwarfUsesInlineInfoSection = true;
// Exceptions handling
SupportsExceptionHandling = true;
GlobalEHDirective = "\t.globl\t";
SupportsWeakOmittedEHFrame = false;
AbsoluteEHSectionOffsets = false;
}
X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM) :
X86TargetAsmInfo<TargetAsmInfo>(TM) {
PrivateGlobalPrefix = ".L";
WeakRefDirective = "\t.weak\t";
SetDirective = "\t.set\t";
PCSymbol = ".";
// Set up DWARF directives
HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
// Debug Information
AbsoluteDebugSectionOffsets = true;
SupportsDebugInformation = true;
// Exceptions handling
SupportsExceptionHandling = true;
AbsoluteEHSectionOffsets = false;
// On Linux we must declare when we can use a non-executable stack.
if (TM.getSubtarget<X86Subtarget>().isLinux())
NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
}
X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
X86TargetAsmInfo<TargetAsmInfo>(TM) {
GlobalPrefix = "_";
CommentString = ";";
InlineAsmStart = "; InlineAsm Start";
InlineAsmEnd = "; InlineAsm End";
PrivateGlobalPrefix = "$";
AlignDirective = "\tALIGN\t";
ZeroDirective = "\tdb\t";
ZeroDirectiveSuffix = " dup(0)";
AsciiDirective = "\tdb\t";
AscizDirective = 0;
Data8bitsDirective = "\tdb\t";
Data16bitsDirective = "\tdw\t";
Data32bitsDirective = "\tdd\t";
Data64bitsDirective = "\tdq\t";
HasDotTypeDotSizeDirective = false;
HasSingleParameterDotFile = false;
AlignmentIsInBytes = true;
}
// Instantiate default implementation.
TEMPLATE_INSTANTIATION(class X86TargetAsmInfo<TargetAsmInfo>);
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