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https://github.com/c64scene-ar/llvm-6502.git
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1b747ad8a0
and short. Well, it's kinda short. Definitely nasty and brutish. The front-end generates the register/unregister calls into the SjLj runtime, call-site indices and landing pad dispatch. The back end fills in the LSDA with the call-site information provided by the front end. Catch blocks are not yet implemented. Built on Darwin and verified no llvm-core "make check" regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
//===-- X86TargetAsmInfo.cpp - X86 asm properties ---------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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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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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations of the X86TargetAsmInfo properties.
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//
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//===----------------------------------------------------------------------===//
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#include "X86TargetAsmInfo.h"
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#include "X86TargetMachine.h"
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#include "X86Subtarget.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/InlineAsm.h"
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#include "llvm/Instructions.h"
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#include "llvm/Intrinsics.h"
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#include "llvm/Module.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace llvm;
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using namespace llvm::dwarf;
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const char *const llvm::x86_asm_table[] = {
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"{si}", "S",
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"{di}", "D",
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"{ax}", "a",
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"{cx}", "c",
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"{memory}", "memory",
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"{flags}", "",
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"{dirflag}", "",
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"{fpsr}", "",
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"{cc}", "cc",
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0,0};
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X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo<DarwinTargetAsmInfo>(TM) {
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const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
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bool is64Bit = Subtarget->is64Bit();
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AlignmentIsInBytes = false;
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TextAlignFillValue = 0x90;
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if (!is64Bit)
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Data64bitsDirective = 0; // we can't emit a 64-bit unit
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ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
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ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
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LCOMMDirective = "\t.lcomm\t";
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// Leopard and above support aligned common symbols.
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COMMDirectiveTakesAlignment = (Subtarget->getDarwinVers() >= 9);
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HasDotTypeDotSizeDirective = false;
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if (is64Bit) {
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PersonalityPrefix = "";
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PersonalitySuffix = "+4@GOTPCREL";
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} else {
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PersonalityPrefix = "L";
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PersonalitySuffix = "$non_lazy_ptr";
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}
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InlineAsmStart = "## InlineAsm Start";
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InlineAsmEnd = "## InlineAsm End";
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CommentString = "##";
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SetDirective = "\t.set";
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PCSymbol = ".";
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UsedDirective = "\t.no_dead_strip\t";
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ProtectedDirective = "\t.globl\t";
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SupportsDebugInformation = true;
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DwarfUsesInlineInfoSection = true;
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// Exceptions handling
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ExceptionsType = ExceptionHandling::Dwarf;
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GlobalEHDirective = "\t.globl\t";
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SupportsWeakOmittedEHFrame = false;
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AbsoluteEHSectionOffsets = false;
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}
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X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM) :
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X86TargetAsmInfo<TargetAsmInfo>(TM) {
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PrivateGlobalPrefix = ".L";
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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PCSymbol = ".";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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// Debug Information
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AbsoluteDebugSectionOffsets = true;
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SupportsDebugInformation = true;
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// Exceptions handling
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ExceptionsType = ExceptionHandling::Dwarf;
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AbsoluteEHSectionOffsets = false;
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// On Linux we must declare when we can use a non-executable stack.
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if (TM.getSubtarget<X86Subtarget>().isLinux())
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NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
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}
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X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo<TargetAsmInfo>(TM) {
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GlobalPrefix = "_";
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CommentString = ";";
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InlineAsmStart = "; InlineAsm Start";
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InlineAsmEnd = "; InlineAsm End";
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PrivateGlobalPrefix = "$";
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AlignDirective = "\tALIGN\t";
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ZeroDirective = "\tdb\t";
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ZeroDirectiveSuffix = " dup(0)";
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AsciiDirective = "\tdb\t";
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AscizDirective = 0;
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Data8bitsDirective = "\tdb\t";
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Data16bitsDirective = "\tdw\t";
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Data32bitsDirective = "\tdd\t";
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Data64bitsDirective = "\tdq\t";
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HasDotTypeDotSizeDirective = false;
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HasSingleParameterDotFile = false;
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AlignmentIsInBytes = true;
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}
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// Instantiate default implementation.
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TEMPLATE_INSTANTIATION(class X86TargetAsmInfo<TargetAsmInfo>);
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