1 //===--- llvm/Analysis/DebugInfo.h - Debug Information Helpers --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines a bunch of datatypes that are useful for creating and
11 // walking debug info in LLVM IR form. They essentially provide wrappers around
12 // the information in the global variables that's needed when constructing the
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_DEBUGINFO_H
18 #define LLVM_DEBUGINFO_H
20 #include "llvm/ADT/SmallPtrSet.h"
21 #include "llvm/ADT/SmallVector.h"
22 #include "llvm/ADT/StringRef.h"
23 #include "llvm/Support/Dwarf.h"
44 class DILexicalBlockFile;
49 /// DIDescriptor - A thin wraper around MDNode to access encoded debug info.
50 /// This should not be stored in a container, because the underlying MDNode
51 /// may change in certain situations.
56 FlagProtected = 1 << 1,
58 FlagAppleBlock = 1 << 3,
59 FlagBlockByrefStruct = 1 << 4,
61 FlagArtificial = 1 << 6,
62 FlagExplicit = 1 << 7,
63 FlagPrototyped = 1 << 8,
64 FlagObjcClassComplete = 1 << 9,
65 FlagObjectPointer = 1 << 10,
67 FlagStaticMember = 1 << 12,
68 FlagIndirectVariable = 1 << 13
71 const MDNode *DbgNode;
73 StringRef getStringField(unsigned Elt) const;
74 unsigned getUnsignedField(unsigned Elt) const {
75 return (unsigned)getUInt64Field(Elt);
77 uint64_t getUInt64Field(unsigned Elt) const;
78 int64_t getInt64Field(unsigned Elt) const;
79 DIDescriptor getDescriptorField(unsigned Elt) const;
81 template <typename DescTy>
82 DescTy getFieldAs(unsigned Elt) const {
83 return DescTy(getDescriptorField(Elt));
86 GlobalVariable *getGlobalVariableField(unsigned Elt) const;
87 Constant *getConstantField(unsigned Elt) const;
88 Function *getFunctionField(unsigned Elt) const;
89 void replaceFunctionField(unsigned Elt, Function *F);
92 explicit DIDescriptor() : DbgNode(0) {}
93 explicit DIDescriptor(const MDNode *N) : DbgNode(N) {}
94 explicit DIDescriptor(const DIFile F);
95 explicit DIDescriptor(const DISubprogram F);
96 explicit DIDescriptor(const DILexicalBlockFile F);
97 explicit DIDescriptor(const DILexicalBlock F);
98 explicit DIDescriptor(const DIVariable F);
99 explicit DIDescriptor(const DIType F);
103 operator MDNode *() const { return const_cast<MDNode*>(DbgNode); }
104 MDNode *operator ->() const { return const_cast<MDNode*>(DbgNode); }
106 // An explicit operator bool so that we can do testing of DI values
108 // FIXME: This operator bool isn't actually protecting anything at the
109 // moment due to the conversion operator above making DIDescriptor nodes
110 // implicitly convertable to bool.
111 LLVM_EXPLICIT operator bool() const { return DbgNode != 0; }
113 bool operator==(DIDescriptor Other) const {
114 return DbgNode == Other.DbgNode;
116 bool operator!=(DIDescriptor Other) const {
117 return !operator==(Other);
120 unsigned getTag() const {
121 return getUnsignedField(0) & ~LLVMDebugVersionMask;
124 bool isDerivedType() const;
125 bool isCompositeType() const;
126 bool isBasicType() const;
127 bool isVariable() const;
128 bool isSubprogram() const;
129 bool isGlobalVariable() const;
130 bool isScope() const;
132 bool isCompileUnit() const;
133 bool isNameSpace() const;
134 bool isLexicalBlockFile() const;
135 bool isLexicalBlock() const;
136 bool isSubrange() const;
137 bool isEnumerator() const;
139 bool isGlobal() const;
140 bool isUnspecifiedParameter() const;
141 bool isTemplateTypeParameter() const;
142 bool isTemplateValueParameter() const;
143 bool isObjCProperty() const;
144 bool isImportedEntity() const;
146 /// print - print descriptor.
147 void print(raw_ostream &OS) const;
149 /// dump - print descriptor to dbgs() with a newline.
153 /// DISubrange - This is used to represent ranges, for array bounds.
154 class DISubrange : public DIDescriptor {
155 friend class DIDescriptor;
156 void printInternal(raw_ostream &OS) const;
158 explicit DISubrange(const MDNode *N = 0) : DIDescriptor(N) {}
160 int64_t getLo() const { return getInt64Field(1); }
161 int64_t getCount() const { return getInt64Field(2); }
165 /// DIArray - This descriptor holds an array of descriptors.
166 class DIArray : public DIDescriptor {
168 explicit DIArray(const MDNode *N = 0)
171 unsigned getNumElements() const;
172 DIDescriptor getElement(unsigned Idx) const {
173 return getDescriptorField(Idx);
177 /// DIEnumerator - A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
178 /// FIXME: it seems strange that this doesn't have either a reference to the
179 /// type/precision or a file/line pair for location info.
180 class DIEnumerator : public DIDescriptor {
181 friend class DIDescriptor;
182 void printInternal(raw_ostream &OS) const;
184 explicit DIEnumerator(const MDNode *N = 0) : DIDescriptor(N) {}
186 StringRef getName() const { return getStringField(1); }
187 int64_t getEnumValue() const { return getInt64Field(2); }
191 /// DIScope - A base class for various scopes.
192 class DIScope : public DIDescriptor {
194 friend class DIDescriptor;
195 void printInternal(raw_ostream &OS) const;
197 explicit DIScope(const MDNode *N = 0) : DIDescriptor (N) {}
199 StringRef getFilename() const;
200 StringRef getDirectory() const;
203 /// DIType - This is a wrapper for a type.
204 /// FIXME: Types should be factored much better so that CV qualifiers and
205 /// others do not require a huge and empty descriptor full of zeros.
206 class DIType : public DIScope {
208 friend class DIDescriptor;
209 void printInternal(raw_ostream &OS) const;
210 // This ctor is used when the Tag has already been validated by a derived
212 DIType(const MDNode *N, bool, bool) : DIScope(N) {}
214 /// Verify - Verify that a type descriptor is well formed.
216 explicit DIType(const MDNode *N);
219 DIScope getContext() const { return getFieldAs<DIScope>(2); }
220 StringRef getName() const { return getStringField(3); }
221 unsigned getLineNumber() const { return getUnsignedField(4); }
222 uint64_t getSizeInBits() const { return getUInt64Field(5); }
223 uint64_t getAlignInBits() const { return getUInt64Field(6); }
224 // FIXME: Offset is only used for DW_TAG_member nodes. Making every type
225 // carry this is just plain insane.
226 uint64_t getOffsetInBits() const { return getUInt64Field(7); }
227 unsigned getFlags() const { return getUnsignedField(8); }
228 bool isPrivate() const {
229 return (getFlags() & FlagPrivate) != 0;
231 bool isProtected() const {
232 return (getFlags() & FlagProtected) != 0;
234 bool isForwardDecl() const {
235 return (getFlags() & FlagFwdDecl) != 0;
237 // isAppleBlock - Return true if this is the Apple Blocks extension.
238 bool isAppleBlockExtension() const {
239 return (getFlags() & FlagAppleBlock) != 0;
241 bool isBlockByrefStruct() const {
242 return (getFlags() & FlagBlockByrefStruct) != 0;
244 bool isVirtual() const {
245 return (getFlags() & FlagVirtual) != 0;
247 bool isArtificial() const {
248 return (getFlags() & FlagArtificial) != 0;
250 bool isObjectPointer() const {
251 return (getFlags() & FlagObjectPointer) != 0;
253 bool isObjcClassComplete() const {
254 return (getFlags() & FlagObjcClassComplete) != 0;
256 bool isVector() const {
257 return (getFlags() & FlagVector) != 0;
259 bool isStaticMember() const {
260 return (getFlags() & FlagStaticMember) != 0;
262 bool isValid() const {
263 return DbgNode && isType();
266 /// isUnsignedDIType - Return true if type encoding is unsigned.
267 bool isUnsignedDIType();
269 /// replaceAllUsesWith - Replace all uses of debug info referenced by
271 void replaceAllUsesWith(DIDescriptor &D);
272 void replaceAllUsesWith(MDNode *D);
275 /// DIBasicType - A basic type, like 'int' or 'float'.
276 class DIBasicType : public DIType {
278 explicit DIBasicType(const MDNode *N = 0) : DIType(N) {}
280 unsigned getEncoding() const { return getUnsignedField(9); }
282 /// Verify - Verify that a basic type descriptor is well formed.
286 /// DIDerivedType - A simple derived type, like a const qualified type,
287 /// a typedef, a pointer or reference, et cetera. Or, a data member of
288 /// a class/struct/union.
289 class DIDerivedType : public DIType {
290 friend class DIDescriptor;
291 void printInternal(raw_ostream &OS) const;
293 explicit DIDerivedType(const MDNode *N, bool, bool)
294 : DIType(N, true, true) {}
296 explicit DIDerivedType(const MDNode *N = 0)
297 : DIType(N, true, true) {}
299 DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
301 /// getOriginalTypeSize - If this type is derived from a base type then
302 /// return base type size.
303 uint64_t getOriginalTypeSize() const;
305 /// getObjCProperty - Return property node, if this ivar is
306 /// associated with one.
307 MDNode *getObjCProperty() const;
309 DIType getClassType() const {
310 assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
311 return getFieldAs<DIType>(10);
314 Constant *getConstant() const {
315 assert((getTag() == dwarf::DW_TAG_member) && isStaticMember());
316 return getConstantField(10);
319 /// Verify - Verify that a derived type descriptor is well formed.
323 /// DICompositeType - This descriptor holds a type that can refer to multiple
324 /// other types, like a function or struct.
325 /// DICompositeType is derived from DIDerivedType because some
326 /// composite types (such as enums) can be derived from basic types
327 // FIXME: Make this derive from DIType directly & just store the
328 // base type in a single DIType field.
329 class DICompositeType : public DIDerivedType {
330 friend class DIDescriptor;
331 void printInternal(raw_ostream &OS) const;
333 explicit DICompositeType(const MDNode *N = 0)
334 : DIDerivedType(N, true, true) {
335 if (N && !isCompositeType())
339 DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
340 void setTypeArray(DIArray Elements, DIArray TParams = DIArray());
341 unsigned getRunTimeLang() const { return getUnsignedField(11); }
342 DICompositeType getContainingType() const {
343 return getFieldAs<DICompositeType>(12);
345 void setContainingType(DICompositeType ContainingType);
346 DIArray getTemplateParams() const { return getFieldAs<DIArray>(13); }
348 /// Verify - Verify that a composite type descriptor is well formed.
352 /// DIFile - This is a wrapper for a file.
353 class DIFile : public DIScope {
354 friend class DIDescriptor;
356 explicit DIFile(const MDNode *N = 0) : DIScope(N) {
357 if (DbgNode && !isFile())
360 MDNode *getFileNode() const;
364 /// DICompileUnit - A wrapper for a compile unit.
365 class DICompileUnit : public DIScope {
366 friend class DIDescriptor;
367 void printInternal(raw_ostream &OS) const;
369 explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
371 unsigned getLanguage() const { return getUnsignedField(2); }
372 StringRef getProducer() const { return getStringField(3); }
374 bool isOptimized() const { return getUnsignedField(4) != 0; }
375 StringRef getFlags() const { return getStringField(5); }
376 unsigned getRunTimeVersion() const { return getUnsignedField(6); }
378 DIArray getEnumTypes() const;
379 DIArray getRetainedTypes() const;
380 DIArray getSubprograms() const;
381 DIArray getGlobalVariables() const;
382 DIArray getImportedEntities() const;
384 StringRef getSplitDebugFilename() const { return getStringField(12); }
386 /// Verify - Verify that a compile unit is well formed.
390 /// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
391 class DISubprogram : public DIScope {
392 friend class DIDescriptor;
393 void printInternal(raw_ostream &OS) const;
395 explicit DISubprogram(const MDNode *N = 0) : DIScope(N) {}
397 DIScope getContext() const { return getFieldAs<DIScope>(2); }
398 StringRef getName() const { return getStringField(3); }
399 StringRef getDisplayName() const { return getStringField(4); }
400 StringRef getLinkageName() const { return getStringField(5); }
401 unsigned getLineNumber() const { return getUnsignedField(6); }
402 DICompositeType getType() const { return getFieldAs<DICompositeType>(7); }
404 /// isLocalToUnit - Return true if this subprogram is local to the current
405 /// compile unit, like 'static' in C.
406 unsigned isLocalToUnit() const { return getUnsignedField(8); }
407 unsigned isDefinition() const { return getUnsignedField(9); }
409 unsigned getVirtuality() const { return getUnsignedField(10); }
410 unsigned getVirtualIndex() const { return getUnsignedField(11); }
412 DICompositeType getContainingType() const {
413 return getFieldAs<DICompositeType>(12);
416 unsigned getFlags() const {
417 return getUnsignedField(13);
420 unsigned isArtificial() const {
421 return (getUnsignedField(13) & FlagArtificial) != 0;
423 /// isPrivate - Return true if this subprogram has "private"
424 /// access specifier.
425 bool isPrivate() const {
426 return (getUnsignedField(13) & FlagPrivate) != 0;
428 /// isProtected - Return true if this subprogram has "protected"
429 /// access specifier.
430 bool isProtected() const {
431 return (getUnsignedField(13) & FlagProtected) != 0;
433 /// isExplicit - Return true if this subprogram is marked as explicit.
434 bool isExplicit() const {
435 return (getUnsignedField(13) & FlagExplicit) != 0;
437 /// isPrototyped - Return true if this subprogram is prototyped.
438 bool isPrototyped() const {
439 return (getUnsignedField(13) & FlagPrototyped) != 0;
442 unsigned isOptimized() const;
444 /// Verify - Verify that a subprogram descriptor is well formed.
447 /// describes - Return true if this subprogram provides debugging
448 /// information for the function F.
449 bool describes(const Function *F);
451 Function *getFunction() const { return getFunctionField(15); }
452 void replaceFunction(Function *F) { replaceFunctionField(15, F); }
453 DIArray getTemplateParams() const { return getFieldAs<DIArray>(16); }
454 DISubprogram getFunctionDeclaration() const {
455 return getFieldAs<DISubprogram>(17);
457 MDNode *getVariablesNodes() const;
458 DIArray getVariables() const;
460 /// getScopeLineNumber - Get the beginning of the scope of the
461 /// function, not necessarily where the name of the program
463 unsigned getScopeLineNumber() const { return getUnsignedField(19); }
466 /// DILexicalBlock - This is a wrapper for a lexical block.
467 class DILexicalBlock : public DIScope {
469 explicit DILexicalBlock(const MDNode *N = 0) : DIScope(N) {}
470 DIScope getContext() const { return getFieldAs<DIScope>(2); }
471 unsigned getLineNumber() const { return getUnsignedField(3); }
472 unsigned getColumnNumber() const { return getUnsignedField(4); }
476 /// DILexicalBlockFile - This is a wrapper for a lexical block with
477 /// a filename change.
478 class DILexicalBlockFile : public DIScope {
480 explicit DILexicalBlockFile(const MDNode *N = 0) : DIScope(N) {}
481 DIScope getContext() const {
482 if (getScope().isSubprogram())
484 return getScope().getContext();
486 unsigned getLineNumber() const { return getScope().getLineNumber(); }
487 unsigned getColumnNumber() const { return getScope().getColumnNumber(); }
488 DILexicalBlock getScope() const { return getFieldAs<DILexicalBlock>(2); }
492 /// DINameSpace - A wrapper for a C++ style name space.
493 class DINameSpace : public DIScope {
494 friend class DIDescriptor;
495 void printInternal(raw_ostream &OS) const;
497 explicit DINameSpace(const MDNode *N = 0) : DIScope(N) {}
498 DIScope getContext() const { return getFieldAs<DIScope>(2); }
499 StringRef getName() const { return getStringField(3); }
500 unsigned getLineNumber() const { return getUnsignedField(4); }
504 /// DITemplateTypeParameter - This is a wrapper for template type parameter.
505 class DITemplateTypeParameter : public DIDescriptor {
507 explicit DITemplateTypeParameter(const MDNode *N = 0) : DIDescriptor(N) {}
509 DIScope getContext() const { return getFieldAs<DIScope>(1); }
510 StringRef getName() const { return getStringField(2); }
511 DIType getType() const { return getFieldAs<DIType>(3); }
512 StringRef getFilename() const {
513 return getFieldAs<DIFile>(4).getFilename();
515 StringRef getDirectory() const {
516 return getFieldAs<DIFile>(4).getDirectory();
518 unsigned getLineNumber() const { return getUnsignedField(5); }
519 unsigned getColumnNumber() const { return getUnsignedField(6); }
523 /// DITemplateValueParameter - This is a wrapper for template value parameter.
524 class DITemplateValueParameter : public DIDescriptor {
526 explicit DITemplateValueParameter(const MDNode *N = 0) : DIDescriptor(N) {}
528 DIScope getContext() const { return getFieldAs<DIScope>(1); }
529 StringRef getName() const { return getStringField(2); }
530 DIType getType() const { return getFieldAs<DIType>(3); }
531 Value *getValue() const;
532 StringRef getFilename() const {
533 return getFieldAs<DIFile>(5).getFilename();
535 StringRef getDirectory() const {
536 return getFieldAs<DIFile>(5).getDirectory();
538 unsigned getLineNumber() const { return getUnsignedField(6); }
539 unsigned getColumnNumber() const { return getUnsignedField(7); }
543 /// DIGlobalVariable - This is a wrapper for a global variable.
544 class DIGlobalVariable : public DIDescriptor {
545 friend class DIDescriptor;
546 void printInternal(raw_ostream &OS) const;
548 explicit DIGlobalVariable(const MDNode *N = 0) : DIDescriptor(N) {}
550 DIScope getContext() const { return getFieldAs<DIScope>(2); }
551 StringRef getName() const { return getStringField(3); }
552 StringRef getDisplayName() const { return getStringField(4); }
553 StringRef getLinkageName() const { return getStringField(5); }
554 StringRef getFilename() const {
555 return getFieldAs<DIFile>(6).getFilename();
557 StringRef getDirectory() const {
558 return getFieldAs<DIFile>(6).getDirectory();
562 unsigned getLineNumber() const { return getUnsignedField(7); }
563 DIType getType() const { return getFieldAs<DIType>(8); }
564 unsigned isLocalToUnit() const { return getUnsignedField(9); }
565 unsigned isDefinition() const { return getUnsignedField(10); }
567 GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
568 Constant *getConstant() const { return getConstantField(11); }
569 DIDerivedType getStaticDataMemberDeclaration() const {
570 return getFieldAs<DIDerivedType>(12);
573 /// Verify - Verify that a global variable descriptor is well formed.
577 /// DIVariable - This is a wrapper for a variable (e.g. parameter, local,
579 class DIVariable : public DIDescriptor {
580 friend class DIDescriptor;
581 void printInternal(raw_ostream &OS) const;
583 explicit DIVariable(const MDNode *N = 0)
586 DIScope getContext() const { return getFieldAs<DIScope>(1); }
587 StringRef getName() const { return getStringField(2); }
588 DIFile getFile() const { return getFieldAs<DIFile>(3); }
589 unsigned getLineNumber() const {
590 return (getUnsignedField(4) << 8) >> 8;
592 unsigned getArgNumber() const {
593 unsigned L = getUnsignedField(4);
596 DIType getType() const { return getFieldAs<DIType>(5); }
598 /// isArtificial - Return true if this variable is marked as "artificial".
599 bool isArtificial() const {
600 return (getUnsignedField(6) & FlagArtificial) != 0;
603 bool isObjectPointer() const {
604 return (getUnsignedField(6) & FlagObjectPointer) != 0;
607 /// \brief Return true if this variable is represented as a pointer.
608 bool isIndirect() const {
609 return (getUnsignedField(6) & FlagIndirectVariable) != 0;
612 /// getInlinedAt - If this variable is inlined then return inline location.
613 MDNode *getInlinedAt() const;
615 /// Verify - Verify that a variable descriptor is well formed.
618 /// HasComplexAddr - Return true if the variable has a complex address.
619 bool hasComplexAddress() const {
620 return getNumAddrElements() > 0;
623 unsigned getNumAddrElements() const;
625 uint64_t getAddrElement(unsigned Idx) const {
626 return getUInt64Field(Idx+8);
629 /// isBlockByrefVariable - Return true if the variable was declared as
630 /// a "__block" variable (Apple Blocks).
631 bool isBlockByrefVariable() const {
632 return getType().isBlockByrefStruct();
635 /// isInlinedFnArgument - Return true if this variable provides debugging
636 /// information for an inlined function arguments.
637 bool isInlinedFnArgument(const Function *CurFn);
639 void printExtendedName(raw_ostream &OS) const;
642 /// DILocation - This object holds location information. This object
643 /// is not associated with any DWARF tag.
644 class DILocation : public DIDescriptor {
646 explicit DILocation(const MDNode *N) : DIDescriptor(N) { }
648 unsigned getLineNumber() const { return getUnsignedField(0); }
649 unsigned getColumnNumber() const { return getUnsignedField(1); }
650 DIScope getScope() const { return getFieldAs<DIScope>(2); }
651 DILocation getOrigLocation() const { return getFieldAs<DILocation>(3); }
652 StringRef getFilename() const { return getScope().getFilename(); }
653 StringRef getDirectory() const { return getScope().getDirectory(); }
657 class DIObjCProperty : public DIDescriptor {
658 friend class DIDescriptor;
659 void printInternal(raw_ostream &OS) const;
661 explicit DIObjCProperty(const MDNode *N) : DIDescriptor(N) { }
663 StringRef getObjCPropertyName() const { return getStringField(1); }
664 DIFile getFile() const { return getFieldAs<DIFile>(2); }
665 unsigned getLineNumber() const { return getUnsignedField(3); }
667 StringRef getObjCPropertyGetterName() const {
668 return getStringField(4);
670 StringRef getObjCPropertySetterName() const {
671 return getStringField(5);
673 bool isReadOnlyObjCProperty() const {
674 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readonly) != 0;
676 bool isReadWriteObjCProperty() const {
677 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readwrite) != 0;
679 bool isAssignObjCProperty() const {
680 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_assign) != 0;
682 bool isRetainObjCProperty() const {
683 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_retain) != 0;
685 bool isCopyObjCProperty() const {
686 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_copy) != 0;
688 bool isNonAtomicObjCProperty() const {
689 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_nonatomic) != 0;
692 DIType getType() const { return getFieldAs<DIType>(7); }
694 /// Verify - Verify that a derived type descriptor is well formed.
698 /// \brief An imported module (C++ using directive or similar).
699 class DIImportedEntity : public DIDescriptor {
700 friend class DIDescriptor;
701 void printInternal(raw_ostream &OS) const;
703 explicit DIImportedEntity(const MDNode *N) : DIDescriptor(N) { }
704 DIScope getContext() const { return getFieldAs<DIScope>(1); }
705 DIDescriptor getEntity() const { return getFieldAs<DIDescriptor>(2); }
706 unsigned getLineNumber() const { return getUnsignedField(3); }
707 StringRef getName() const { return getStringField(4); }
711 /// getDISubprogram - Find subprogram that is enclosing this scope.
712 DISubprogram getDISubprogram(const MDNode *Scope);
714 /// getDICompositeType - Find underlying composite type.
715 DICompositeType getDICompositeType(DIType T);
717 /// isSubprogramContext - Return true if Context is either a subprogram
718 /// or another context nested inside a subprogram.
719 bool isSubprogramContext(const MDNode *Context);
721 /// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
722 /// to hold function specific information.
723 NamedMDNode *getOrInsertFnSpecificMDNode(Module &M, DISubprogram SP);
725 /// getFnSpecificMDNode - Return a NameMDNode, if available, that is
726 /// suitable to hold function specific information.
727 NamedMDNode *getFnSpecificMDNode(const Module &M, DISubprogram SP);
729 /// createInlinedVariable - Create a new inlined variable based on current
731 /// @param DV Current Variable.
732 /// @param InlinedScope Location at current variable is inlined.
733 DIVariable createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
734 LLVMContext &VMContext);
736 /// cleanseInlinedVariable - Remove inlined scope from the variable.
737 DIVariable cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext);
739 /// DebugInfoFinder tries to list all debug info MDNodes in a module. To
740 /// list debug info MDNodes used by an instruction, DebugInfoFinder uses
741 /// processDeclare and processValue. processModule will go through
742 /// all DICompileUnits and list debug info MDNodes used by the CUs.
743 class DebugInfoFinder {
745 /// processModule - Process entire module and collect debug info
747 void processModule(const Module &M);
749 /// processDeclare - Process DbgDeclareInst.
750 void processDeclare(const DbgDeclareInst *DDI);
751 /// Process DbgValueInst.
752 void processValue(const DbgValueInst *DVI);
757 /// processType - Process DIType.
758 void processType(DIType DT);
760 /// processLexicalBlock - Process DILexicalBlock.
761 void processLexicalBlock(DILexicalBlock LB);
763 /// processSubprogram - Process DISubprogram.
764 void processSubprogram(DISubprogram SP);
766 /// processLocation - Process DILocation.
767 void processLocation(DILocation Loc);
769 void processScope(DIScope Scope);
771 /// addCompileUnit - Add compile unit into CUs.
772 bool addCompileUnit(DICompileUnit CU);
774 /// addGlobalVariable - Add global variable into GVs.
775 bool addGlobalVariable(DIGlobalVariable DIG);
777 // addSubprogram - Add subprogram into SPs.
778 bool addSubprogram(DISubprogram SP);
780 /// addType - Add type into Tys.
781 bool addType(DIType DT);
783 bool addScope(DIScope Scope);
786 typedef SmallVectorImpl<MDNode *>::const_iterator iterator;
787 iterator compile_unit_begin() const { return CUs.begin(); }
788 iterator compile_unit_end() const { return CUs.end(); }
789 iterator subprogram_begin() const { return SPs.begin(); }
790 iterator subprogram_end() const { return SPs.end(); }
791 iterator global_variable_begin() const { return GVs.begin(); }
792 iterator global_variable_end() const { return GVs.end(); }
793 iterator type_begin() const { return TYs.begin(); }
794 iterator type_end() const { return TYs.end(); }
795 iterator scope_begin() const { return Scopes.begin(); }
796 iterator scope_end() const { return Scopes.end(); }
798 unsigned compile_unit_count() const { return CUs.size(); }
799 unsigned global_variable_count() const { return GVs.size(); }
800 unsigned subprogram_count() const { return SPs.size(); }
801 unsigned type_count() const { return TYs.size(); }
802 unsigned scope_count() const { return Scopes.size(); }
805 SmallVector<MDNode *, 8> CUs; // Compile Units
806 SmallVector<MDNode *, 8> SPs; // Subprograms
807 SmallVector<MDNode *, 8> GVs; // Global Variables;
808 SmallVector<MDNode *, 8> TYs; // Types
809 SmallVector<MDNode *, 8> Scopes; // Scopes
810 SmallPtrSet<MDNode *, 64> NodesSeen;
812 } // end namespace llvm