LLVM  11.0.0git
MipsMCAsmInfo.cpp
Go to the documentation of this file.
1 //===-- MipsMCAsmInfo.cpp - Mips Asm Properties ---------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file contains the declarations of the MipsMCAsmInfo properties.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "MipsMCAsmInfo.h"
14 #include "MipsABIInfo.h"
15 #include "llvm/ADT/Triple.h"
16 
17 using namespace llvm;
18 
19 void MipsMCAsmInfo::anchor() { }
20 
22  const MCTargetOptions &Options) {
23  IsLittleEndian = TheTriple.isLittleEndian();
24 
25  MipsABIInfo ABI = MipsABIInfo::computeTargetABI(TheTriple, "", Options);
26 
27  if (TheTriple.isMIPS64() && !ABI.IsN32())
29 
30  if (ABI.IsO32())
31  PrivateGlobalPrefix = "$";
32  else if (ABI.IsN32() || ABI.IsN64())
33  PrivateGlobalPrefix = ".L";
35 
36  AlignmentIsInBytes = false;
37  Data16bitsDirective = "\t.2byte\t";
38  Data32bitsDirective = "\t.4byte\t";
39  Data64bitsDirective = "\t.8byte\t";
40  CommentString = "#";
41  ZeroDirective = "\t.space\t";
42  GPRel32Directive = "\t.gpword\t";
43  GPRel64Directive = "\t.gpdword\t";
44  DTPRel32Directive = "\t.dtprelword\t";
45  DTPRel64Directive = "\t.dtpreldword\t";
46  TPRel32Directive = "\t.tprelword\t";
47  TPRel64Directive = "\t.tpreldword\t";
51  DwarfRegNumForCFI = true;
52  HasMipsExpressions = true;
53 }
bool isMIPS64() const
Tests whether the target is MIPS 64-bit (little and big endian).
Definition: Triple.h:723
StringRef PrivateLabelPrefix
This prefix is used for labels for basic blocks.
Definition: MCAsmInfo.h:132
bool DwarfRegNumForCFI
True if dwarf register numbers are printed instead of symbolic register names in .cfi_* directives.
Definition: MCAsmInfo.h:376
This class represents lattice values for constants.
Definition: AllocatorList.h:23
const char * Data64bitsDirective
Definition: MCAsmInfo.h:206
const char * ZeroDirective
This should be set to the directive used to get some number of zero (and non-zero if supported by the...
Definition: MCAsmInfo.h:182
bool IsLittleEndian
True if target is little endian. Default is true.
Definition: MCAsmInfo.h:70
unsigned CalleeSaveStackSlotSize
Size of the stack slot reserved for callee-saved registers, in bytes.
Definition: MCAsmInfo.h:67
bool AlignmentIsInBytes
If this is true (the default) then the asmprinter emits ".align N" directives, where N is the number ...
Definition: MCAsmInfo.h:244
StringRef CommentString
This indicates the comment character used by the assembler.
Definition: MCAsmInfo.h:114
bool IsN32() const
Definition: MipsABIInfo.h:41
bool IsN64() const
Definition: MipsABIInfo.h:42
bool HasMipsExpressions
Definition: MCAsmInfo.h:415
const char * GPRel64Directive
If non-null, a directive that is used to emit a word which should be relocated as a 64-bit GP-relativ...
Definition: MCAsmInfo.h:211
bool isLittleEndian() const
Tests whether the target triple is little endian.
Definition: Triple.cpp:1525
const char * TPRel32Directive
Definition: MCAsmInfo.h:223
bool SupportsDebugInformation
True if target supports emission of debugging information.
Definition: MCAsmInfo.h:358
bool IsO32() const
Definition: MipsABIInfo.h:40
const char * Data16bitsDirective
Definition: MCAsmInfo.h:204
bool UseAssignmentForEHBegin
Definition: MCAsmInfo.h:120
const char * DTPRel64Directive
Definition: MCAsmInfo.h:222
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
MipsMCAsmInfo(const Triple &TheTriple, const MCTargetOptions &Options)
const char * TPRel64Directive
Definition: MCAsmInfo.h:224
const char * Data32bitsDirective
Definition: MCAsmInfo.h:205
const char * GPRel32Directive
If non-null, a directive that is used to emit a word which should be relocated as a 32-bit GP-relativ...
Definition: MCAsmInfo.h:216
unsigned CodePointerSize
Code pointer size in bytes. Default is 4.
Definition: MCAsmInfo.h:63
ExceptionHandling ExceptionsType
Exception handling format for the target. Defaults to None.
Definition: MCAsmInfo.h:361
static MipsABIInfo computeTargetABI(const Triple &TT, StringRef CPU, const MCTargetOptions &Options)
Definition: MipsABIInfo.cpp:57
const char * DTPRel32Directive
If non-null, directives that are used to emit a word/dword which should be relocated as a 32/64-bit D...
Definition: MCAsmInfo.h:221
DWARF-like instruction based exceptions.
StringRef PrivateGlobalPrefix
This prefix is used for globals like constant pool entries that are completely private to the ...
Definition: MCAsmInfo.h:128