Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/include/llvm/MC/MCAsmInfo.h
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//===-- llvm/MC/MCAsmInfo.h - Asm info --------------------------*- 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 a class to be used as the basis for target specific
11
// asm writers.  This class primarily takes care of global printing constants,
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// which are used in very similar ways across all targets.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCASMINFO_H
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#define LLVM_MC_MCASMINFO_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/MC/MCDirectives.h"
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#include "llvm/MC/MCDwarf.h"
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#include "llvm/MC/MCTargetOptions.h"
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#include <vector>
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namespace llvm {
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class MCContext;
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class MCExpr;
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class MCSection;
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class MCStreamer;
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class MCSymbol;
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namespace WinEH {
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enum class EncodingType {
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  Invalid, /// Invalid
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  Alpha,   /// Windows Alpha
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  Alpha64, /// Windows AXP64
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  ARM,     /// Windows NT (Windows on ARM)
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  CE,      /// Windows CE ARM, PowerPC, SH3, SH4
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  Itanium, /// Windows x64, Windows Itanium (IA-64)
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  X86,     /// Windows x86, uses no CFI, just EH tables
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  MIPS = Alpha,
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};
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} // end namespace WinEH
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namespace LCOMM {
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enum LCOMMType { NoAlignment, ByteAlignment, Log2Alignment };
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} // end namespace LCOMM
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/// This class is intended to be used as a base class for asm
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/// properties and features specific to the target.
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class MCAsmInfo {
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protected:
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  //===------------------------------------------------------------------===//
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  // Properties to be set by the target writer, used to configure asm printer.
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  //
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  /// Code pointer size in bytes.  Default is 4.
63
  unsigned CodePointerSize = 4;
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65
  /// Size of the stack slot reserved for callee-saved registers, in bytes.
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  /// Default is same as pointer size.
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  unsigned CalleeSaveStackSlotSize = 4;
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69
  /// True if target is little endian.  Default is true.
70
  bool IsLittleEndian = true;
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  /// True if target stack grow up.  Default is false.
73
  bool StackGrowsUp = false;
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75
  /// True if this target has the MachO .subsections_via_symbols directive.
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  /// Default is false.
77
  bool HasSubsectionsViaSymbols = false;
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  /// True if this is a MachO target that supports the macho-specific .zerofill
80
  /// directive for emitting BSS Symbols.  Default is false.
81
  bool HasMachoZeroFillDirective = false;
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83
  /// True if this is a MachO target that supports the macho-specific .tbss
84
  /// directive for emitting thread local BSS Symbols.  Default is false.
85
  bool HasMachoTBSSDirective = false;
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  /// This is the maximum possible length of an instruction, which is needed to
88
  /// compute the size of an inline asm.  Defaults to 4.
89
  unsigned MaxInstLength = 4;
90
91
  /// Every possible instruction length is a multiple of this value.  Factored
92
  /// out in .debug_frame and .debug_line.  Defaults to 1.
93
  unsigned MinInstAlignment = 1;
94
95
  /// The '$' token, when not referencing an identifier or constant, refers to
96
  /// the current PC.  Defaults to false.
97
  bool DollarIsPC = false;
98
99
  /// This string, if specified, is used to separate instructions from each
100
  /// other when on the same line.  Defaults to ';'
101
  const char *SeparatorString;
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103
  /// This indicates the comment character used by the assembler.  Defaults to
104
  /// "#"
105
  StringRef CommentString;
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107
  /// This is appended to emitted labels.  Defaults to ":"
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  const char *LabelSuffix;
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  // Print the EH begin symbol with an assignment. Defaults to false.
111
  bool UseAssignmentForEHBegin = false;
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113
  // Do we need to create a local symbol for .size?
114
  bool NeedsLocalForSize = false;
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116
  /// This prefix is used for globals like constant pool entries that are
117
  /// completely private to the .s file and should not have names in the .o
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  /// file.  Defaults to "L"
119
  StringRef PrivateGlobalPrefix;
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121
  /// This prefix is used for labels for basic blocks. Defaults to the same as
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  /// PrivateGlobalPrefix.
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  StringRef PrivateLabelPrefix;
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  /// This prefix is used for symbols that should be passed through the
126
  /// assembler but be removed by the linker.  This is 'l' on Darwin, currently
127
  /// used for some ObjC metadata.  The default of "" meast that for this system
128
  /// a plain private symbol should be used.  Defaults to "".
129
  StringRef LinkerPrivateGlobalPrefix;
130
131
  /// If these are nonempty, they contain a directive to emit before and after
132
  /// an inline assembly statement.  Defaults to "#APP\n", "#NO_APP\n"
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  const char *InlineAsmStart;
134
  const char *InlineAsmEnd;
135
136
  /// These are assembly directives that tells the assembler to interpret the
137
  /// following instructions differently.  Defaults to ".code16", ".code32",
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  /// ".code64".
139
  const char *Code16Directive;
140
  const char *Code32Directive;
141
  const char *Code64Directive;
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143
  /// Which dialect of an assembler variant to use.  Defaults to 0
144
  unsigned AssemblerDialect = 0;
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  /// This is true if the assembler allows @ characters in symbol names.
147
  /// Defaults to false.
148
  bool AllowAtInName = false;
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  /// If this is true, symbol names with invalid characters will be printed in
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  /// quotes.
152
  bool SupportsQuotedNames = true;
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  /// This is true if data region markers should be printed as
155
  /// ".data_region/.end_data_region" directives. If false, use "$d/$a" labels
156
  /// instead.
157
  bool UseDataRegionDirectives = false;
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  //===--- Data Emission Directives -------------------------------------===//
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  /// This should be set to the directive used to get some number of zero bytes
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  /// emitted to the current section.  Common cases are "\t.zero\t" and
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  /// "\t.space\t".  If this is set to null, the Data*bitsDirective's will be
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  /// used to emit zero bytes.  Defaults to "\t.zero\t"
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  const char *ZeroDirective;
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  /// This directive allows emission of an ascii string with the standard C
168
  /// escape characters embedded into it.  Defaults to "\t.ascii\t"
169
  const char *AsciiDirective;
170
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  /// If not null, this allows for special handling of zero terminated strings
172
  /// on this target.  This is commonly supported as ".asciz".  If a target
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  /// doesn't support this, it can be set to null.  Defaults to "\t.asciz\t"
174
  const char *AscizDirective;
175
176
  /// These directives are used to output some unit of integer data to the
177
  /// current section.  If a data directive is set to null, smaller data
178
  /// directives will be used to emit the large sizes.  Defaults to "\t.byte\t",
179
  /// "\t.short\t", "\t.long\t", "\t.quad\t"
180
  const char *Data8bitsDirective;
181
  const char *Data16bitsDirective;
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  const char *Data32bitsDirective;
183
  const char *Data64bitsDirective;
184
185
  /// If non-null, a directive that is used to emit a word which should be
186
  /// relocated as a 64-bit GP-relative offset, e.g. .gpdword on Mips.  Defaults
187
  /// to nullptr.
188
  const char *GPRel64Directive = nullptr;
189
190
  /// If non-null, a directive that is used to emit a word which should be
191
  /// relocated as a 32-bit GP-relative offset, e.g. .gpword on Mips or .gprel32
192
  /// on Alpha.  Defaults to nullptr.
193
  const char *GPRel32Directive = nullptr;
194
195
  /// If non-null, directives that are used to emit a word/dword which should
196
  /// be relocated as a 32/64-bit DTP/TP-relative offset, e.g. .dtprelword/
197
  /// .dtpreldword/.tprelword/.tpreldword on Mips.
198
  const char *DTPRel32Directive = nullptr;
199
  const char *DTPRel64Directive = nullptr;
200
  const char *TPRel32Directive = nullptr;
201
  const char *TPRel64Directive = nullptr;
202
203
  /// This is true if this target uses "Sun Style" syntax for section switching
204
  /// ("#alloc,#write" etc) instead of the normal ELF syntax (,"a,w") in
205
  /// .section directives.  Defaults to false.
206
  bool SunStyleELFSectionSwitchSyntax = false;
207
208
  /// This is true if this target uses ELF '.section' directive before the
209
  /// '.bss' one. It's used for PPC/Linux which doesn't support the '.bss'
210
  /// directive only.  Defaults to false.
211
  bool UsesELFSectionDirectiveForBSS = false;
212
213
  bool NeedsDwarfSectionOffsetDirective = false;
214
215
  //===--- Alignment Information ----------------------------------------===//
216
217
  /// If this is true (the default) then the asmprinter emits ".align N"
218
  /// directives, where N is the number of bytes to align to.  Otherwise, it
219
  /// emits ".align log2(N)", e.g. 3 to align to an 8 byte boundary.  Defaults
220
  /// to true.
221
  bool AlignmentIsInBytes = true;
222
223
  /// If non-zero, this is used to fill the executable space created as the
224
  /// result of a alignment directive.  Defaults to 0
225
  unsigned TextAlignFillValue = 0;
226
227
  //===--- Global Variable Emission Directives --------------------------===//
228
229
  /// This is the directive used to declare a global entity. Defaults to
230
  /// ".globl".
231
  const char *GlobalDirective;
232
233
  /// True if the expression
234
  ///   .long f - g
235
  /// uses a relocation but it can be suppressed by writing
236
  ///   a = f - g
237
  ///   .long a
238
  bool SetDirectiveSuppressesReloc = false;
239
240
  /// False if the assembler requires that we use
241
  /// \code
242
  ///   Lc = a - b
243
  ///   .long Lc
244
  /// \endcode
245
  //
246
  /// instead of
247
  //
248
  /// \code
249
  ///   .long a - b
250
  /// \endcode
251
  ///
252
  ///  Defaults to true.
253
  bool HasAggressiveSymbolFolding = true;
254
255
  /// True is .comm's and .lcomms optional alignment is to be specified in bytes
256
  /// instead of log2(n).  Defaults to true.
257
  bool COMMDirectiveAlignmentIsInBytes = true;
258
259
  /// Describes if the .lcomm directive for the target supports an alignment
260
  /// argument and how it is interpreted.  Defaults to NoAlignment.
261
  LCOMM::LCOMMType LCOMMDirectiveAlignmentType = LCOMM::NoAlignment;
262
263
  // True if the target allows .align directives on functions. This is true for
264
  // most targets, so defaults to true.
265
  bool HasFunctionAlignment = true;
266
267
  /// True if the target has .type and .size directives, this is true for most
268
  /// ELF targets.  Defaults to true.
269
  bool HasDotTypeDotSizeDirective = true;
270
271
  /// True if the target has a single parameter .file directive, this is true
272
  /// for ELF targets.  Defaults to true.
273
  bool HasSingleParameterDotFile = true;
274
275
  /// True if the target has a .ident directive, this is true for ELF targets.
276
  /// Defaults to false.
277
  bool HasIdentDirective = false;
278
279
  /// True if this target supports the MachO .no_dead_strip directive.  Defaults
280
  /// to false.
281
  bool HasNoDeadStrip = false;
282
283
  /// True if this target supports the MachO .alt_entry directive.  Defaults to
284
  /// false.
285
  bool HasAltEntry = false;
286
287
  /// Used to declare a global as being a weak symbol. Defaults to ".weak".
288
  const char *WeakDirective;
289
290
  /// This directive, if non-null, is used to declare a global as being a weak
291
  /// undefined symbol.  Defaults to nullptr.
292
  const char *WeakRefDirective = nullptr;
293
294
  /// True if we have a directive to declare a global as being a weak defined
295
  /// symbol.  Defaults to false.
296
  bool HasWeakDefDirective = false;
297
298
  /// True if we have a directive to declare a global as being a weak defined
299
  /// symbol that can be hidden (unexported).  Defaults to false.
300
  bool HasWeakDefCanBeHiddenDirective = false;
301
302
  /// True if we have a .linkonce directive.  This is used on cygwin/mingw.
303
  /// Defaults to false.
304
  bool HasLinkOnceDirective = false;
305
306
  /// This attribute, if not MCSA_Invalid, is used to declare a symbol as having
307
  /// hidden visibility.  Defaults to MCSA_Hidden.
308
  MCSymbolAttr HiddenVisibilityAttr = MCSA_Hidden;
309
310
  /// This attribute, if not MCSA_Invalid, is used to declare an undefined
311
  /// symbol as having hidden visibility. Defaults to MCSA_Hidden.
312
  MCSymbolAttr HiddenDeclarationVisibilityAttr = MCSA_Hidden;
313
314
  /// This attribute, if not MCSA_Invalid, is used to declare a symbol as having
315
  /// protected visibility.  Defaults to MCSA_Protected
316
  MCSymbolAttr ProtectedVisibilityAttr = MCSA_Protected;
317
318
  //===--- Dwarf Emission Directives -----------------------------------===//
319
320
  /// True if target supports emission of debugging information.  Defaults to
321
  /// false.
322
  bool SupportsDebugInformation = false;
323
324
  /// Exception handling format for the target.  Defaults to None.
325
  ExceptionHandling ExceptionsType = ExceptionHandling::None;
326
327
  /// Windows exception handling data (.pdata) encoding.  Defaults to Invalid.
328
  WinEH::EncodingType WinEHEncodingType = WinEH::EncodingType::Invalid;
329
330
  /// True if Dwarf2 output generally uses relocations for references to other
331
  /// .debug_* sections.
332
  bool DwarfUsesRelocationsAcrossSections = true;
333
334
  /// True if DWARF FDE symbol reference relocations should be replaced by an
335
  /// absolute difference.
336
  bool DwarfFDESymbolsUseAbsDiff = false;
337
338
  /// True if dwarf register numbers are printed instead of symbolic register
339
  /// names in .cfi_* directives.  Defaults to false.
340
  bool DwarfRegNumForCFI = false;
341
342
  /// True if target uses parens to indicate the symbol variant instead of @.
343
  /// For example, foo(plt) instead of foo@plt.  Defaults to false.
344
  bool UseParensForSymbolVariant = false;
345
346
  //===--- Prologue State ----------------------------------------------===//
347
348
  std::vector<MCCFIInstruction> InitialFrameState;
349
350
  //===--- Integrated Assembler Information ----------------------------===//
351
352
  /// Should we use the integrated assembler?
353
  /// The integrated assembler should be enabled by default (by the
354
  /// constructors) when failing to parse a valid piece of assembly (inline
355
  /// or otherwise) is considered a bug. It may then be overridden after
356
  /// construction (see LLVMTargetMachine::initAsmInfo()).
357
  bool UseIntegratedAssembler;
358
359
  /// Preserve Comments in assembly
360
  bool PreserveAsmComments;
361
362
  /// Compress DWARF debug sections. Defaults to no compression.
363
  DebugCompressionType CompressDebugSections = DebugCompressionType::None;
364
365
  /// True if the integrated assembler should interpret 'a >> b' constant
366
  /// expressions as logical rather than arithmetic.
367
  bool UseLogicalShr = true;
368
369
  // If true, emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL, on
370
  // X86_64 ELF.
371
  bool RelaxELFRelocations = true;
372
373
  // If true, then the lexer and expression parser will support %neg(),
374
  // %hi(), and similar unary operators.
375
  bool HasMipsExpressions = false;
376
377
public:
378
  explicit MCAsmInfo();
379
  virtual ~MCAsmInfo();
380
381
  /// Get the code pointer size in bytes.
382
497k
  unsigned getCodePointerSize() const { return CodePointerSize; }
383
384
  /// Get the callee-saved register stack slot
385
  /// size in bytes.
386
56.3k
  unsigned getCalleeSaveStackSlotSize() const {
387
56.3k
    return CalleeSaveStackSlotSize;
388
56.3k
  }
389
390
  /// True if the target is little endian.
391
3.09M
  bool isLittleEndian() const { return IsLittleEndian; }
392
393
  /// True if target stack grow up.
394
56.3k
  bool isStackGrowthDirectionUp() const { return StackGrowsUp; }
395
396
8.98M
  bool hasSubsectionsViaSymbols() const { return HasSubsectionsViaSymbols; }
397
398
  // Data directive accessors.
399
400
120k
  const char *getData8bitsDirective() const { return Data8bitsDirective; }
401
30.6k
  const char *getData16bitsDirective() const { return Data16bitsDirective; }
402
207k
  const char *getData32bitsDirective() const { return Data32bitsDirective; }
403
32.9k
  const char *getData64bitsDirective() const { return Data64bitsDirective; }
404
8
  const char *getGPRel64Directive() const { return GPRel64Directive; }
405
8.84k
  const char *getGPRel32Directive() const { return GPRel32Directive; }
406
3
  const char *getDTPRel64Directive() const { return DTPRel64Directive; }
407
3
  const char *getDTPRel32Directive() const { return DTPRel32Directive; }
408
2
  const char *getTPRel64Directive() const { return TPRel64Directive; }
409
2
  const char *getTPRel32Directive() const { return TPRel32Directive; }
410
411
  /// Targets can implement this method to specify a section to switch to if the
412
  /// translation unit doesn't have any trampolines that require an executable
413
  /// stack.
414
20.5k
  virtual MCSection *getNonexecutableStackSection(MCContext &Ctx) const {
415
20.5k
    return nullptr;
416
20.5k
  }
417
418
  /// \brief True if the section is atomized using the symbols in it.
419
  /// This is false if the section is not atomized at all (most ELF sections) or
420
  /// if it is atomized based on its contents (MachO' __TEXT,__cstring for
421
  /// example).
422
  virtual bool isSectionAtomizableBySymbols(const MCSection &Section) const;
423
424
  virtual const MCExpr *getExprForPersonalitySymbol(const MCSymbol *Sym,
425
                                                    unsigned Encoding,
426
                                                    MCStreamer &Streamer) const;
427
428
  virtual const MCExpr *getExprForFDESymbol(const MCSymbol *Sym,
429
                                            unsigned Encoding,
430
                                            MCStreamer &Streamer) const;
431
432
  /// Return true if the identifier \p Name does not need quotes to be
433
  /// syntactically correct.
434
  virtual bool isValidUnquotedName(StringRef Name) const;
435
436
  /// Return true if the .section directive should be omitted when
437
  /// emitting \p SectionName.  For example:
438
  ///
439
  /// shouldOmitSectionDirective(".text")
440
  ///
441
  /// returns false => .section .text,#alloc,#execinstr
442
  /// returns true  => .text
443
  virtual bool shouldOmitSectionDirective(StringRef SectionName) const;
444
445
63.6k
  bool usesSunStyleELFSectionSwitchSyntax() const {
446
63.6k
    return SunStyleELFSectionSwitchSyntax;
447
63.6k
  }
448
449
1.64k
  bool usesELFSectionDirectiveForBSS() const {
450
1.64k
    return UsesELFSectionDirectiveForBSS;
451
1.64k
  }
452
453
75.9k
  bool needsDwarfSectionOffsetDirective() const {
454
75.9k
    return NeedsDwarfSectionOffsetDirective;
455
75.9k
  }
456
457
  // Accessors.
458
459
56.9k
  bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
460
277
  bool hasMachoTBSSDirective() const { return HasMachoTBSSDirective; }
461
3.42k
  unsigned getMaxInstLength() const { return MaxInstLength; }
462
305k
  unsigned getMinInstAlignment() const { return MinInstAlignment; }
463
11
  bool getDollarIsPC() const { return DollarIsPC; }
464
16.9M
  const char *getSeparatorString() const { return SeparatorString; }
465
466
  /// This indicates the column (zero-based) at which asm comments should be
467
  /// printed.
468
1.12M
  unsigned getCommentColumn() const { return 40; }
469
470
10.1M
  StringRef getCommentString() const { return CommentString; }
471
353k
  const char *getLabelSuffix() const { return LabelSuffix; }
472
473
20.5k
  bool useAssignmentForEHBegin() const { return UseAssignmentForEHBegin; }
474
595k
  bool needsLocalForSize() const { return NeedsLocalForSize; }
475
7.48M
  StringRef getPrivateGlobalPrefix() const { return PrivateGlobalPrefix; }
476
1.81M
  StringRef getPrivateLabelPrefix() const { return PrivateLabelPrefix; }
477
478
58.1k
  bool hasLinkerPrivateGlobalPrefix() const {
479
58.1k
    return LinkerPrivateGlobalPrefix[0] != '\0';
480
58.1k
  }
481
482
58.1k
  StringRef getLinkerPrivateGlobalPrefix() const {
483
58.1k
    if (hasLinkerPrivateGlobalPrefix())
484
58.1k
      return LinkerPrivateGlobalPrefix;
485
0
    return getPrivateGlobalPrefix();
486
58.1k
  }
487
488
11.2k
  const char *getInlineAsmStart() const { return InlineAsmStart; }
489
11.2k
  const char *getInlineAsmEnd() const { return InlineAsmEnd; }
490
4.62k
  const char *getCode16Directive() const { return Code16Directive; }
491
7.19k
  const char *getCode32Directive() const { return Code32Directive; }
492
2
  const char *getCode64Directive() const { return Code64Directive; }
493
498k
  unsigned getAssemblerDialect() const { return AssemblerDialect; }
494
8
  bool doesAllowAtInName() const { return AllowAtInName; }
495
2.31k
  bool supportsNameQuoting() const { return SupportsQuotedNames; }
496
497
2.61k
  bool doesSupportDataRegionDirectives() const {
498
2.61k
    return UseDataRegionDirectives;
499
2.61k
  }
500
501
13.1k
  const char *getZeroDirective() const { return ZeroDirective; }
502
739
  const char *getAsciiDirective() const { return AsciiDirective; }
503
9.06k
  const char *getAscizDirective() const { return AscizDirective; }
504
1.27k
  bool getAlignmentIsInBytes() const { return AlignmentIsInBytes; }
505
138k
  unsigned getTextAlignFillValue() const { return TextAlignFillValue; }
506
142k
  const char *getGlobalDirective() const { return GlobalDirective; }
507
508
123k
  bool doesSetDirectiveSuppressReloc() const {
509
123k
    return SetDirectiveSuppressesReloc;
510
123k
  }
511
512
95.9k
  bool hasAggressiveSymbolFolding() const { return HasAggressiveSymbolFolding; }
513
514
2.28k
  bool getCOMMDirectiveAlignmentIsInBytes() const {
515
2.28k
    return COMMDirectiveAlignmentIsInBytes;
516
2.28k
  }
517
518
341
  LCOMM::LCOMMType getLCOMMDirectiveAlignmentType() const {
519
341
    return LCOMMDirectiveAlignmentType;
520
341
  }
521
522
595k
  bool hasFunctionAlignment() const { return HasFunctionAlignment; }
523
3.32M
  bool hasDotTypeDotSizeDirective() const { return HasDotTypeDotSizeDirective; }
524
33.2k
  bool hasSingleParameterDotFile() const { return HasSingleParameterDotFile; }
525
33.3k
  bool hasIdentDirective() const { return HasIdentDirective; }
526
441
  bool hasNoDeadStrip() const { return HasNoDeadStrip; }
527
229
  bool hasAltEntry() const { return HasAltEntry; }
528
292
  const char *getWeakDirective() const { return WeakDirective; }
529
33.4k
  const char *getWeakRefDirective() const { return WeakRefDirective; }
530
463k
  bool hasWeakDefDirective() const { return HasWeakDefDirective; }
531
532
463k
  bool hasWeakDefCanBeHiddenDirective() const {
533
463k
    return HasWeakDefCanBeHiddenDirective;
534
463k
  }
535
536
474
  bool hasLinkOnceDirective() const { return HasLinkOnceDirective; }
537
538
17.1k
  MCSymbolAttr getHiddenVisibilityAttr() const { return HiddenVisibilityAttr; }
539
540
482
  MCSymbolAttr getHiddenDeclarationVisibilityAttr() const {
541
482
    return HiddenDeclarationVisibilityAttr;
542
482
  }
543
544
53
  MCSymbolAttr getProtectedVisibilityAttr() const {
545
53
    return ProtectedVisibilityAttr;
546
53
  }
547
548
33.4k
  bool doesSupportDebugInformation() const { return SupportsDebugInformation; }
549
550
155
  bool doesSupportExceptionHandling() const {
551
155
    return ExceptionsType != ExceptionHandling::None;
552
155
  }
553
554
1.45M
  ExceptionHandling getExceptionHandlingType() const { return ExceptionsType; }
555
486
  WinEH::EncodingType getWinEHEncodingType() const { return WinEHEncodingType; }
556
557
796
  void setExceptionsType(ExceptionHandling EH) {
558
796
    ExceptionsType = EH;
559
796
  }
560
561
  /// Returns true if the exception handling method for the platform uses call
562
  /// frame information to unwind.
563
597k
  bool usesCFIForEH() const {
564
597k
    return (ExceptionsType == ExceptionHandling::DwarfCFI ||
565
597k
            
ExceptionsType == ExceptionHandling::ARM6.83k
||
usesWindowsCFI()6.78k
);
566
597k
  }
567
568
775k
  bool usesWindowsCFI() const {
569
775k
    return ExceptionsType == ExceptionHandling::WinEH &&
570
16.5k
           (WinEHEncodingType != WinEH::EncodingType::Invalid &&
571
16.5k
            WinEHEncodingType != WinEH::EncodingType::X86);
572
775k
  }
573
574
149k
  bool doesDwarfUseRelocationsAcrossSections() const {
575
149k
    return DwarfUsesRelocationsAcrossSections;
576
149k
  }
577
578
11.4k
  bool doDwarfFDESymbolsUseAbsDiff() const { return DwarfFDESymbolsUseAbsDiff; }
579
20.6k
  bool useDwarfRegNumForCFI() const { return DwarfRegNumForCFI; }
580
8.98M
  bool useParensForSymbolVariant() const { return UseParensForSymbolVariant; }
581
582
64.2k
  void addInitialFrameState(const MCCFIInstruction &Inst) {
583
64.2k
    InitialFrameState.push_back(Inst);
584
64.2k
  }
585
586
128k
  const std::vector<MCCFIInstruction> &getInitialFrameState() const {
587
128k
    return InitialFrameState;
588
128k
  }
589
590
  /// Return true if assembly (inline or otherwise) should be parsed.
591
5.68k
  bool useIntegratedAssembler() const { return UseIntegratedAssembler; }
592
593
  /// Set whether assembly (inline or otherwise) should be parsed.
594
164
  virtual void setUseIntegratedAssembler(bool Value) {
595
164
    UseIntegratedAssembler = Value;
596
164
  }
597
598
  /// Return true if assembly (inline or otherwise) should be parsed.
599
483k
  bool preserveAsmComments() const { return PreserveAsmComments; }
600
601
  /// Set whether assembly (inline or otherwise) should be parsed.
602
47.1k
  virtual void setPreserveAsmComments(bool Value) {
603
47.1k
    PreserveAsmComments = Value;
604
47.1k
  }
605
606
336k
  DebugCompressionType compressDebugSections() const {
607
336k
    return CompressDebugSections;
608
336k
  }
609
610
43.0k
  void setCompressDebugSections(DebugCompressionType CompressDebugSections) {
611
43.0k
    this->CompressDebugSections = CompressDebugSections;
612
43.0k
  }
613
614
359k
  bool shouldUseLogicalShr() const { return UseLogicalShr; }
615
616
161
  bool canRelaxRelocations() const { return RelaxELFRelocations; }
617
47.8k
  void setRelaxELFRelocations(bool V) { RelaxELFRelocations = V; }
618
142k
  bool hasMipsExpressions() const { return HasMipsExpressions; }
619
};
620
621
} // end namespace llvm
622
623
#endif // LLVM_MC_MCASMINFO_H