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1  //===-- llvm/MC/MCAsmInfo.h - Asm info --------------------------*- C++ -*-===//
2  //
3  //                     The LLVM Compiler Infrastructure
4  //
5  // This file is distributed under the University of Illinois Open Source
6  // License. See LICENSE.TXT for details.
7  //
8  //===----------------------------------------------------------------------===//
9  //
10  // 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,
12  // which are used in very similar ways across all targets.
13  //
14  //===----------------------------------------------------------------------===//
15  
16  #ifndef LLVM_MC_MCASMINFO_H
17  #define LLVM_MC_MCASMINFO_H
18  
19  #include "llvm/MC/MCDirectives.h"
20  #include "llvm/MC/MCDwarf.h"
21  #include <cassert>
22  #include <vector>
23  
24  namespace llvm {
25  class MCExpr;
26  class MCSection;
27  class MCStreamer;
28  class MCSymbol;
29  class MCContext;
30  
31  namespace WinEH {
32  enum class EncodingType {
33    Invalid, /// Invalid
34    Alpha,   /// Windows Alpha
35    Alpha64, /// Windows AXP64
36    ARM,     /// Windows NT (Windows on ARM)
37    CE,      /// Windows CE ARM, PowerPC, SH3, SH4
38    Itanium, /// Windows x64, Windows Itanium (IA-64)
39    X86,     /// Windows x86, uses no CFI, just EH tables
40    MIPS = Alpha,
41  };
42  }
43  
44  enum class ExceptionHandling {
45    None,     /// No exception support
46    DwarfCFI, /// DWARF-like instruction based exceptions
47    SjLj,     /// setjmp/longjmp based exceptions
48    ARM,      /// ARM EHABI
49    WinEH,    /// Windows Exception Handling
50  };
51  
52  namespace LCOMM {
53  enum LCOMMType { NoAlignment, ByteAlignment, Log2Alignment };
54  }
55  
56  /// This class is intended to be used as a base class for asm
57  /// properties and features specific to the target.
58  class MCAsmInfo {
59  protected:
60    //===------------------------------------------------------------------===//
61    // Properties to be set by the target writer, used to configure asm printer.
62    //
63  
64    /// Pointer size in bytes.  Default is 4.
65    unsigned PointerSize;
66  
67    /// Size of the stack slot reserved for callee-saved registers, in bytes.
68    /// Default is same as pointer size.
69    unsigned CalleeSaveStackSlotSize;
70  
71    /// True if target is little endian.  Default is true.
72    bool IsLittleEndian;
73  
74    /// True if target stack grow up.  Default is false.
75    bool StackGrowsUp;
76  
77    /// True if this target has the MachO .subsections_via_symbols directive.
78    /// Default is false.
79    bool HasSubsectionsViaSymbols;
80  
81    /// True if this is a MachO target that supports the macho-specific .zerofill
82    /// directive for emitting BSS Symbols.  Default is false.
83    bool HasMachoZeroFillDirective;
84  
85    /// True if this is a MachO target that supports the macho-specific .tbss
86    /// directive for emitting thread local BSS Symbols.  Default is false.
87    bool HasMachoTBSSDirective;
88  
89    /// True if the compiler should emit a ".reference .constructors_used" or
90    /// ".reference .destructors_used" directive after the static ctor/dtor
91    /// list.  This directive is only emitted in Static relocation model.  Default
92    /// is false.
93    bool HasStaticCtorDtorReferenceInStaticMode;
94  
95    /// This is the maximum possible length of an instruction, which is needed to
96    /// compute the size of an inline asm.  Defaults to 4.
97    unsigned MaxInstLength;
98  
99    /// Every possible instruction length is a multiple of this value.  Factored
100    /// out in .debug_frame and .debug_line.  Defaults to 1.
101    unsigned MinInstAlignment;
102  
103    /// The '$' token, when not referencing an identifier or constant, refers to
104    /// the current PC.  Defaults to false.
105    bool DollarIsPC;
106  
107    /// This string, if specified, is used to separate instructions from each
108    /// other when on the same line.  Defaults to ';'
109    const char *SeparatorString;
110  
111    /// This indicates the comment character used by the assembler.  Defaults to
112    /// "#"
113    const char *CommentString;
114  
115    /// This is appended to emitted labels.  Defaults to ":"
116    const char *LabelSuffix;
117  
118    // Print the EH begin symbol with an assignment. Defaults to false.
119    bool UseAssignmentForEHBegin;
120  
121    // Do we need to create a local symbol for .size?
122    bool NeedsLocalForSize;
123  
124    /// This prefix is used for globals like constant pool entries that are
125    /// completely private to the .s file and should not have names in the .o
126    /// file.  Defaults to "L"
127    const char *PrivateGlobalPrefix;
128  
129    /// This prefix is used for labels for basic blocks. Defaults to the same as
130    /// PrivateGlobalPrefix.
131    const char *PrivateLabelPrefix;
132  
133    /// This prefix is used for symbols that should be passed through the
134    /// assembler but be removed by the linker.  This is 'l' on Darwin, currently
135    /// used for some ObjC metadata.  The default of "" meast that for this system
136    /// a plain private symbol should be used.  Defaults to "".
137    const char *LinkerPrivateGlobalPrefix;
138  
139    /// If these are nonempty, they contain a directive to emit before and after
140    /// an inline assembly statement.  Defaults to "#APP\n", "#NO_APP\n"
141    const char *InlineAsmStart;
142    const char *InlineAsmEnd;
143  
144    /// These are assembly directives that tells the assembler to interpret the
145    /// following instructions differently.  Defaults to ".code16", ".code32",
146    /// ".code64".
147    const char *Code16Directive;
148    const char *Code32Directive;
149    const char *Code64Directive;
150  
151    /// Which dialect of an assembler variant to use.  Defaults to 0
152    unsigned AssemblerDialect;
153  
154    /// This is true if the assembler allows @ characters in symbol names.
155    /// Defaults to false.
156    bool AllowAtInName;
157  
158    /// If this is true, symbol names with invalid characters will be printed in
159    /// quotes.
160    bool SupportsQuotedNames;
161  
162    /// This is true if data region markers should be printed as
163    /// ".data_region/.end_data_region" directives. If false, use "$d/$a" labels
164    /// instead.
165    bool UseDataRegionDirectives;
166  
167    //===--- Data Emission Directives -------------------------------------===//
168  
169    /// This should be set to the directive used to get some number of zero bytes
170    /// emitted to the current section.  Common cases are "\t.zero\t" and
171    /// "\t.space\t".  If this is set to null, the Data*bitsDirective's will be
172    /// used to emit zero bytes.  Defaults to "\t.zero\t"
173    const char *ZeroDirective;
174  
175    /// This directive allows emission of an ascii string with the standard C
176    /// escape characters embedded into it.  Defaults to "\t.ascii\t"
177    const char *AsciiDirective;
178  
179    /// If not null, this allows for special handling of zero terminated strings
180    /// on this target.  This is commonly supported as ".asciz".  If a target
181    /// doesn't support this, it can be set to null.  Defaults to "\t.asciz\t"
182    const char *AscizDirective;
183  
184    /// These directives are used to output some unit of integer data to the
185    /// current section.  If a data directive is set to null, smaller data
186    /// directives will be used to emit the large sizes.  Defaults to "\t.byte\t",
187    /// "\t.short\t", "\t.long\t", "\t.quad\t"
188    const char *Data8bitsDirective;
189    const char *Data16bitsDirective;
190    const char *Data32bitsDirective;
191    const char *Data64bitsDirective;
192  
193    /// If non-null, a directive that is used to emit a word which should be
194    /// relocated as a 64-bit GP-relative offset, e.g. .gpdword on Mips.  Defaults
195    /// to NULL.
196    const char *GPRel64Directive;
197  
198    /// If non-null, a directive that is used to emit a word which should be
199    /// relocated as a 32-bit GP-relative offset, e.g. .gpword on Mips or .gprel32
200    /// on Alpha.  Defaults to NULL.
201    const char *GPRel32Directive;
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;
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;
212  
213    bool NeedsDwarfSectionOffsetDirective;
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;
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;
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;
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;
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;
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;
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;
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;
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;
274  
275    /// True if the target has a .ident directive, this is true for ELF targets.
276    /// Defaults to false.
277    bool HasIdentDirective;
278  
279    /// True if this target supports the MachO .no_dead_strip directive.  Defaults
280    /// to false.
281    bool HasNoDeadStrip;
282  
283    /// Used to declare a global as being a weak symbol. Defaults to ".weak".
284    const char *WeakDirective;
285  
286    /// This directive, if non-null, is used to declare a global as being a weak
287    /// undefined symbol.  Defaults to NULL.
288    const char *WeakRefDirective;
289  
290    /// True if we have a directive to declare a global as being a weak defined
291    /// symbol.  Defaults to false.
292    bool HasWeakDefDirective;
293  
294    /// True if we have a directive to declare a global as being a weak defined
295    /// symbol that can be hidden (unexported).  Defaults to false.
296    bool HasWeakDefCanBeHiddenDirective;
297  
298    /// True if we have a .linkonce directive.  This is used on cygwin/mingw.
299    /// Defaults to false.
300    bool HasLinkOnceDirective;
301  
302    /// This attribute, if not MCSA_Invalid, is used to declare a symbol as having
303    /// hidden visibility.  Defaults to MCSA_Hidden.
304    MCSymbolAttr HiddenVisibilityAttr;
305  
306    /// This attribute, if not MCSA_Invalid, is used to declare an undefined
307    /// symbol as having hidden visibility. Defaults to MCSA_Hidden.
308    MCSymbolAttr HiddenDeclarationVisibilityAttr;
309  
310    /// This attribute, if not MCSA_Invalid, is used to declare a symbol as having
311    /// protected visibility.  Defaults to MCSA_Protected
312    MCSymbolAttr ProtectedVisibilityAttr;
313  
314    //===--- Dwarf Emission Directives -----------------------------------===//
315  
316    /// True if target supports emission of debugging information.  Defaults to
317    /// false.
318    bool SupportsDebugInformation;
319  
320    /// Exception handling format for the target.  Defaults to None.
321    ExceptionHandling ExceptionsType;
322  
323    /// Windows exception handling data (.pdata) encoding.  Defaults to Invalid.
324    WinEH::EncodingType WinEHEncodingType;
325  
326    /// True if Dwarf2 output generally uses relocations for references to other
327    /// .debug_* sections.
328    bool DwarfUsesRelocationsAcrossSections;
329  
330    /// True if DWARF FDE symbol reference relocations should be replaced by an
331    /// absolute difference.
332    bool DwarfFDESymbolsUseAbsDiff;
333  
334    /// True if dwarf register numbers are printed instead of symbolic register
335    /// names in .cfi_* directives.  Defaults to false.
336    bool DwarfRegNumForCFI;
337  
338    /// True if target uses parens to indicate the symbol variant instead of @.
339    /// For example, foo(plt) instead of foo@plt.  Defaults to false.
340    bool UseParensForSymbolVariant;
341  
342    //===--- Prologue State ----------------------------------------------===//
343  
344    std::vector<MCCFIInstruction> InitialFrameState;
345  
346    //===--- Integrated Assembler Information ----------------------------===//
347  
348    /// Should we use the integrated assembler?
349    /// The integrated assembler should be enabled by default (by the
350    /// constructors) when failing to parse a valid piece of assembly (inline
351    /// or otherwise) is considered a bug. It may then be overridden after
352    /// construction (see LLVMTargetMachine::initAsmInfo()).
353    bool UseIntegratedAssembler;
354  
355    /// Compress DWARF debug sections. Defaults to false.
356    bool CompressDebugSections;
357  
358    /// True if the integrated assembler should interpret 'a >> b' constant
359    /// expressions as logical rather than arithmetic.
360    bool UseLogicalShr;
361  
362  public:
363    explicit MCAsmInfo();
364    virtual ~MCAsmInfo();
365  
366    /// Get the pointer size in bytes.
getPointerSize()367    unsigned getPointerSize() const { return PointerSize; }
368  
369    /// Get the callee-saved register stack slot
370    /// size in bytes.
getCalleeSaveStackSlotSize()371    unsigned getCalleeSaveStackSlotSize() const {
372      return CalleeSaveStackSlotSize;
373    }
374  
375    /// True if the target is little endian.
isLittleEndian()376    bool isLittleEndian() const { return IsLittleEndian; }
377  
378    /// True if target stack grow up.
isStackGrowthDirectionUp()379    bool isStackGrowthDirectionUp() const { return StackGrowsUp; }
380  
hasSubsectionsViaSymbols()381    bool hasSubsectionsViaSymbols() const { return HasSubsectionsViaSymbols; }
382  
383    // Data directive accessors.
384  
getData8bitsDirective()385    const char *getData8bitsDirective() const { return Data8bitsDirective; }
getData16bitsDirective()386    const char *getData16bitsDirective() const { return Data16bitsDirective; }
getData32bitsDirective()387    const char *getData32bitsDirective() const { return Data32bitsDirective; }
getData64bitsDirective()388    const char *getData64bitsDirective() const { return Data64bitsDirective; }
getGPRel64Directive()389    const char *getGPRel64Directive() const { return GPRel64Directive; }
getGPRel32Directive()390    const char *getGPRel32Directive() const { return GPRel32Directive; }
391  
392    /// Targets can implement this method to specify a section to switch to if the
393    /// translation unit doesn't have any trampolines that require an executable
394    /// stack.
getNonexecutableStackSection(MCContext & Ctx)395    virtual MCSection *getNonexecutableStackSection(MCContext &Ctx) const {
396      return nullptr;
397    }
398  
399    /// \brief True if the section is atomized using the symbols in it.
400    /// This is false if the section is not atomized at all (most ELF sections) or
401    /// if it is atomized based on its contents (MachO' __TEXT,__cstring for
402    /// example).
403    virtual bool isSectionAtomizableBySymbols(const MCSection &Section) const;
404  
405    virtual const MCExpr *getExprForPersonalitySymbol(const MCSymbol *Sym,
406                                                      unsigned Encoding,
407                                                      MCStreamer &Streamer) const;
408  
409    virtual const MCExpr *getExprForFDESymbol(const MCSymbol *Sym,
410                                              unsigned Encoding,
411                                              MCStreamer &Streamer) const;
412  
413    /// Return true if the identifier \p Name does not need quotes to be
414    /// syntactically correct.
415    virtual bool isValidUnquotedName(StringRef Name) const;
416  
417    /// Return true if the .section directive should be omitted when
418    /// emitting \p SectionName.  For example:
419    ///
420    /// shouldOmitSectionDirective(".text")
421    ///
422    /// returns false => .section .text,#alloc,#execinstr
423    /// returns true  => .text
424    virtual bool shouldOmitSectionDirective(StringRef SectionName) const;
425  
usesSunStyleELFSectionSwitchSyntax()426    bool usesSunStyleELFSectionSwitchSyntax() const {
427      return SunStyleELFSectionSwitchSyntax;
428    }
429  
usesELFSectionDirectiveForBSS()430    bool usesELFSectionDirectiveForBSS() const {
431      return UsesELFSectionDirectiveForBSS;
432    }
433  
needsDwarfSectionOffsetDirective()434    bool needsDwarfSectionOffsetDirective() const {
435      return NeedsDwarfSectionOffsetDirective;
436    }
437  
438    // Accessors.
439  
hasMachoZeroFillDirective()440    bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
hasMachoTBSSDirective()441    bool hasMachoTBSSDirective() const { return HasMachoTBSSDirective; }
hasStaticCtorDtorReferenceInStaticMode()442    bool hasStaticCtorDtorReferenceInStaticMode() const {
443      return HasStaticCtorDtorReferenceInStaticMode;
444    }
getMaxInstLength()445    unsigned getMaxInstLength() const { return MaxInstLength; }
getMinInstAlignment()446    unsigned getMinInstAlignment() const { return MinInstAlignment; }
getDollarIsPC()447    bool getDollarIsPC() const { return DollarIsPC; }
getSeparatorString()448    const char *getSeparatorString() const { return SeparatorString; }
449  
450    /// This indicates the column (zero-based) at which asm comments should be
451    /// printed.
getCommentColumn()452    unsigned getCommentColumn() const { return 40; }
453  
getCommentString()454    const char *getCommentString() const { return CommentString; }
getLabelSuffix()455    const char *getLabelSuffix() const { return LabelSuffix; }
456  
useAssignmentForEHBegin()457    bool useAssignmentForEHBegin() const { return UseAssignmentForEHBegin; }
needsLocalForSize()458    bool needsLocalForSize() const { return NeedsLocalForSize; }
getPrivateGlobalPrefix()459    const char *getPrivateGlobalPrefix() const { return PrivateGlobalPrefix; }
getPrivateLabelPrefix()460    const char *getPrivateLabelPrefix() const { return PrivateLabelPrefix; }
hasLinkerPrivateGlobalPrefix()461    bool hasLinkerPrivateGlobalPrefix() const {
462      return LinkerPrivateGlobalPrefix[0] != '\0';
463    }
getLinkerPrivateGlobalPrefix()464    const char *getLinkerPrivateGlobalPrefix() const {
465      if (hasLinkerPrivateGlobalPrefix())
466        return LinkerPrivateGlobalPrefix;
467      return getPrivateGlobalPrefix();
468    }
getInlineAsmStart()469    const char *getInlineAsmStart() const { return InlineAsmStart; }
getInlineAsmEnd()470    const char *getInlineAsmEnd() const { return InlineAsmEnd; }
getCode16Directive()471    const char *getCode16Directive() const { return Code16Directive; }
getCode32Directive()472    const char *getCode32Directive() const { return Code32Directive; }
getCode64Directive()473    const char *getCode64Directive() const { return Code64Directive; }
getAssemblerDialect()474    unsigned getAssemblerDialect() const { return AssemblerDialect; }
doesAllowAtInName()475    bool doesAllowAtInName() const { return AllowAtInName; }
supportsNameQuoting()476    bool supportsNameQuoting() const { return SupportsQuotedNames; }
doesSupportDataRegionDirectives()477    bool doesSupportDataRegionDirectives() const {
478      return UseDataRegionDirectives;
479    }
getZeroDirective()480    const char *getZeroDirective() const { return ZeroDirective; }
getAsciiDirective()481    const char *getAsciiDirective() const { return AsciiDirective; }
getAscizDirective()482    const char *getAscizDirective() const { return AscizDirective; }
getAlignmentIsInBytes()483    bool getAlignmentIsInBytes() const { return AlignmentIsInBytes; }
getTextAlignFillValue()484    unsigned getTextAlignFillValue() const { return TextAlignFillValue; }
getGlobalDirective()485    const char *getGlobalDirective() const { return GlobalDirective; }
doesSetDirectiveSuppressesReloc()486    bool doesSetDirectiveSuppressesReloc() const {
487      return SetDirectiveSuppressesReloc;
488    }
hasAggressiveSymbolFolding()489    bool hasAggressiveSymbolFolding() const { return HasAggressiveSymbolFolding; }
getCOMMDirectiveAlignmentIsInBytes()490    bool getCOMMDirectiveAlignmentIsInBytes() const {
491      return COMMDirectiveAlignmentIsInBytes;
492    }
getLCOMMDirectiveAlignmentType()493    LCOMM::LCOMMType getLCOMMDirectiveAlignmentType() const {
494      return LCOMMDirectiveAlignmentType;
495    }
hasFunctionAlignment()496    bool hasFunctionAlignment() const { return HasFunctionAlignment; }
hasDotTypeDotSizeDirective()497    bool hasDotTypeDotSizeDirective() const { return HasDotTypeDotSizeDirective; }
hasSingleParameterDotFile()498    bool hasSingleParameterDotFile() const { return HasSingleParameterDotFile; }
hasIdentDirective()499    bool hasIdentDirective() const { return HasIdentDirective; }
hasNoDeadStrip()500    bool hasNoDeadStrip() const { return HasNoDeadStrip; }
getWeakDirective()501    const char *getWeakDirective() const { return WeakDirective; }
getWeakRefDirective()502    const char *getWeakRefDirective() const { return WeakRefDirective; }
hasWeakDefDirective()503    bool hasWeakDefDirective() const { return HasWeakDefDirective; }
hasWeakDefCanBeHiddenDirective()504    bool hasWeakDefCanBeHiddenDirective() const {
505      return HasWeakDefCanBeHiddenDirective;
506    }
hasLinkOnceDirective()507    bool hasLinkOnceDirective() const { return HasLinkOnceDirective; }
508  
getHiddenVisibilityAttr()509    MCSymbolAttr getHiddenVisibilityAttr() const { return HiddenVisibilityAttr; }
getHiddenDeclarationVisibilityAttr()510    MCSymbolAttr getHiddenDeclarationVisibilityAttr() const {
511      return HiddenDeclarationVisibilityAttr;
512    }
getProtectedVisibilityAttr()513    MCSymbolAttr getProtectedVisibilityAttr() const {
514      return ProtectedVisibilityAttr;
515    }
doesSupportDebugInformation()516    bool doesSupportDebugInformation() const { return SupportsDebugInformation; }
doesSupportExceptionHandling()517    bool doesSupportExceptionHandling() const {
518      return ExceptionsType != ExceptionHandling::None;
519    }
getExceptionHandlingType()520    ExceptionHandling getExceptionHandlingType() const { return ExceptionsType; }
getWinEHEncodingType()521    WinEH::EncodingType getWinEHEncodingType() const { return WinEHEncodingType; }
522  
523    /// Returns true if the exception handling method for the platform uses call
524    /// frame information to unwind.
usesCFIForEH()525    bool usesCFIForEH() const {
526      return (ExceptionsType == ExceptionHandling::DwarfCFI ||
527              ExceptionsType == ExceptionHandling::ARM || usesWindowsCFI());
528    }
529  
usesWindowsCFI()530    bool usesWindowsCFI() const {
531      return ExceptionsType == ExceptionHandling::WinEH &&
532             (WinEHEncodingType != WinEH::EncodingType::Invalid &&
533              WinEHEncodingType != WinEH::EncodingType::X86);
534    }
535  
doesDwarfUseRelocationsAcrossSections()536    bool doesDwarfUseRelocationsAcrossSections() const {
537      return DwarfUsesRelocationsAcrossSections;
538    }
doDwarfFDESymbolsUseAbsDiff()539    bool doDwarfFDESymbolsUseAbsDiff() const { return DwarfFDESymbolsUseAbsDiff; }
useDwarfRegNumForCFI()540    bool useDwarfRegNumForCFI() const { return DwarfRegNumForCFI; }
useParensForSymbolVariant()541    bool useParensForSymbolVariant() const { return UseParensForSymbolVariant; }
542  
addInitialFrameState(const MCCFIInstruction & Inst)543    void addInitialFrameState(const MCCFIInstruction &Inst) {
544      InitialFrameState.push_back(Inst);
545    }
546  
getInitialFrameState()547    const std::vector<MCCFIInstruction> &getInitialFrameState() const {
548      return InitialFrameState;
549    }
550  
551    /// Return true if assembly (inline or otherwise) should be parsed.
useIntegratedAssembler()552    bool useIntegratedAssembler() const { return UseIntegratedAssembler; }
553  
554    /// Set whether assembly (inline or otherwise) should be parsed.
setUseIntegratedAssembler(bool Value)555    virtual void setUseIntegratedAssembler(bool Value) {
556      UseIntegratedAssembler = Value;
557    }
558  
compressDebugSections()559    bool compressDebugSections() const { return CompressDebugSections; }
560  
setCompressDebugSections(bool CompressDebugSections)561    void setCompressDebugSections(bool CompressDebugSections) {
562      this->CompressDebugSections = CompressDebugSections;
563    }
564  
shouldUseLogicalShr()565    bool shouldUseLogicalShr() const { return UseLogicalShr; }
566  };
567  }
568  
569  #endif
570