1 //===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
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 implements the DIBuilder.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Analysis/DIBuilder.h"
15 #include "llvm/Analysis/DebugInfo.h"
16 #include "llvm/Constants.h"
17 #include "llvm/IntrinsicInst.h"
18 #include "llvm/Module.h"
19 #include "llvm/ADT/STLExtras.h"
20 #include "llvm/Support/Debug.h"
21 #include "llvm/Support/Dwarf.h"
24 using namespace llvm::dwarf;
26 static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) {
27 assert((Tag & LLVMDebugVersionMask) == 0 &&
28 "Tag too large for debug encoding!");
29 return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion);
32 DIBuilder::DIBuilder(Module &m)
33 : M(m), VMContext(M.getContext()), TheCU(0), TempEnumTypes(0),
34 TempRetainTypes(0), TempSubprograms(0), TempGVs(0), DeclareFn(0),
38 /// finalize - Construct any deferred debug info descriptors.
39 void DIBuilder::finalize() {
40 DIArray Enums = getOrCreateArray(AllEnumTypes);
41 DIType(TempEnumTypes).replaceAllUsesWith(Enums);
43 DIArray RetainTypes = getOrCreateArray(AllRetainTypes);
44 DIType(TempRetainTypes).replaceAllUsesWith(RetainTypes);
46 DIArray SPs = getOrCreateArray(AllSubprograms);
47 DIType(TempSubprograms).replaceAllUsesWith(SPs);
48 for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
49 DISubprogram SP(SPs.getElement(i));
50 if (NamedMDNode *NMD = getFnSpecificMDNode(M, SP)) {
51 SmallVector<Value *, 4> Variables;
52 for (unsigned ii = 0, ee = NMD->getNumOperands(); ii != ee; ++ii)
53 Variables.push_back(NMD->getOperand(ii));
54 if (MDNode *Temp = SP.getVariablesNodes()) {
55 DIArray AV = getOrCreateArray(Variables);
56 DIType(Temp).replaceAllUsesWith(AV);
58 NMD->eraseFromParent();
62 DIArray GVs = getOrCreateArray(AllGVs);
63 DIType(TempGVs).replaceAllUsesWith(GVs);
66 /// getNonCompileUnitScope - If N is compile unit return NULL otherwise return
68 static MDNode *getNonCompileUnitScope(MDNode *N) {
69 if (DIDescriptor(N).isCompileUnit())
74 /// createCompileUnit - A CompileUnit provides an anchor for all debugging
75 /// information generated during this instance of compilation.
76 void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
77 StringRef Directory, StringRef Producer,
78 bool isOptimized, StringRef Flags,
79 unsigned RunTimeVer) {
80 assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) ||
81 (Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) &&
82 "Invalid Language tag");
83 assert(!Filename.empty() &&
84 "Unable to create compile unit without filename");
85 Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
86 TempEnumTypes = MDNode::getTemporary(VMContext, TElts);
87 Value *THElts[] = { TempEnumTypes };
88 MDNode *EnumHolder = MDNode::get(VMContext, THElts);
90 TempRetainTypes = MDNode::getTemporary(VMContext, TElts);
91 Value *TRElts[] = { TempRetainTypes };
92 MDNode *RetainHolder = MDNode::get(VMContext, TRElts);
94 TempSubprograms = MDNode::getTemporary(VMContext, TElts);
95 Value *TSElts[] = { TempSubprograms };
96 MDNode *SPHolder = MDNode::get(VMContext, TSElts);
98 TempGVs = MDNode::getTemporary(VMContext, TElts);
99 Value *TVElts[] = { TempGVs };
100 MDNode *GVHolder = MDNode::get(VMContext, TVElts);
103 GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit),
104 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
105 ConstantInt::get(Type::getInt32Ty(VMContext), Lang),
106 MDString::get(VMContext, Filename),
107 MDString::get(VMContext, Directory),
108 MDString::get(VMContext, Producer),
109 // Deprecate isMain field.
110 ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
111 ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
112 MDString::get(VMContext, Flags),
113 ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer),
119 TheCU = DICompileUnit(MDNode::get(VMContext, Elts));
121 // Create a named metadata so that it is easier to find cu in a module.
122 NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu");
123 NMD->addOperand(TheCU);
126 /// createFile - Create a file descriptor to hold debugging information
128 DIFile DIBuilder::createFile(StringRef Filename, StringRef Directory) {
129 assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit");
130 assert(!Filename.empty() && "Unable to create file without name");
132 GetTagConstant(VMContext, dwarf::DW_TAG_file_type),
133 MDString::get(VMContext, Filename),
134 MDString::get(VMContext, Directory),
137 return DIFile(MDNode::get(VMContext, Elts));
140 /// createEnumerator - Create a single enumerator value.
141 DIEnumerator DIBuilder::createEnumerator(StringRef Name, uint64_t Val) {
142 assert(!Name.empty() && "Unable to create enumerator without name");
144 GetTagConstant(VMContext, dwarf::DW_TAG_enumerator),
145 MDString::get(VMContext, Name),
146 ConstantInt::get(Type::getInt64Ty(VMContext), Val)
148 return DIEnumerator(MDNode::get(VMContext, Elts));
151 /// createNullPtrType - Create C++0x nullptr type.
152 DIType DIBuilder::createNullPtrType(StringRef Name) {
153 assert(!Name.empty() && "Unable to create type without name");
154 // nullptr is encoded in DIBasicType format. Line number, filename,
155 // ,size, alignment, offset and flags are always empty here.
157 GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
159 MDString::get(VMContext, Name),
161 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
162 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
163 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
164 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
165 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
166 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Encoding
168 return DIType(MDNode::get(VMContext, Elts));
171 /// createBasicType - Create debugging information entry for a basic
172 /// type, e.g 'char'.
173 DIType DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,
174 uint64_t AlignInBits,
176 assert(!Name.empty() && "Unable to create type without name");
177 // Basic types are encoded in DIBasicType format. Line number, filename,
178 // offset and flags are always empty here.
180 GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
182 MDString::get(VMContext, Name),
184 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
185 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
186 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
187 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
188 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
189 ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
191 return DIType(MDNode::get(VMContext, Elts));
194 /// createQualifiedType - Create debugging information entry for a qualified
195 /// type, e.g. 'const int'.
196 DIType DIBuilder::createQualifiedType(unsigned Tag, DIType FromTy) {
197 // Qualified types are encoded in DIDerivedType format.
199 GetTagConstant(VMContext, Tag),
201 MDString::get(VMContext, StringRef()), // Empty name.
203 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
204 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
205 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
206 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
207 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
210 return DIType(MDNode::get(VMContext, Elts));
213 /// createPointerType - Create debugging information entry for a pointer.
214 DIType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits,
215 uint64_t AlignInBits, StringRef Name) {
216 // Pointer types are encoded in DIDerivedType format.
218 GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
220 MDString::get(VMContext, Name),
222 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
223 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
224 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
225 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
226 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
229 return DIType(MDNode::get(VMContext, Elts));
232 /// createReferenceType - Create debugging information entry for a reference.
233 DIType DIBuilder::createReferenceType(DIType RTy) {
234 assert(RTy.Verify() && "Unable to create reference type");
235 // References are encoded in DIDerivedType format.
237 GetTagConstant(VMContext, dwarf::DW_TAG_reference_type),
241 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
242 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
243 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
244 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
245 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
248 return DIType(MDNode::get(VMContext, Elts));
251 /// createTypedef - Create debugging information entry for a typedef.
252 DIType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
253 unsigned LineNo, DIDescriptor Context) {
254 // typedefs are encoded in DIDerivedType format.
255 assert(Ty.Verify() && "Invalid typedef type!");
257 GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
258 getNonCompileUnitScope(Context),
259 MDString::get(VMContext, Name),
261 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
262 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
263 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
264 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
265 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
268 return DIType(MDNode::get(VMContext, Elts));
271 /// createFriend - Create debugging information entry for a 'friend'.
272 DIType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
273 // typedefs are encoded in DIDerivedType format.
274 assert(Ty.Verify() && "Invalid type!");
275 assert(FriendTy.Verify() && "Invalid friend type!");
277 GetTagConstant(VMContext, dwarf::DW_TAG_friend),
281 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
282 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
283 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
284 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
285 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
288 return DIType(MDNode::get(VMContext, Elts));
291 /// createInheritance - Create debugging information entry to establish
292 /// inheritance relationship between two types.
293 DIType DIBuilder::createInheritance(DIType Ty, DIType BaseTy,
294 uint64_t BaseOffset, unsigned Flags) {
295 assert(Ty.Verify() && "Unable to create inheritance");
296 // TAG_inheritance is encoded in DIDerivedType format.
298 GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
302 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
303 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
304 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
305 ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset),
306 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
309 return DIType(MDNode::get(VMContext, Elts));
312 /// createMemberType - Create debugging information entry for a member.
313 DIType DIBuilder::createMemberType(DIDescriptor Scope, StringRef Name,
314 DIFile File, unsigned LineNumber,
315 uint64_t SizeInBits, uint64_t AlignInBits,
316 uint64_t OffsetInBits, unsigned Flags,
318 // TAG_member is encoded in DIDerivedType format.
320 GetTagConstant(VMContext, dwarf::DW_TAG_member),
321 getNonCompileUnitScope(Scope),
322 MDString::get(VMContext, Name),
324 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
325 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
326 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
327 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
328 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
331 return DIType(MDNode::get(VMContext, Elts));
334 /// createObjCIVar - Create debugging information entry for Objective-C
335 /// instance variable.
336 DIType DIBuilder::createObjCIVar(StringRef Name,
337 DIFile File, unsigned LineNumber,
338 uint64_t SizeInBits, uint64_t AlignInBits,
339 uint64_t OffsetInBits, unsigned Flags,
340 DIType Ty, StringRef PropertyName,
341 StringRef GetterName, StringRef SetterName,
342 unsigned PropertyAttributes) {
343 // TAG_member is encoded in DIDerivedType format.
345 GetTagConstant(VMContext, dwarf::DW_TAG_member),
346 getNonCompileUnitScope(File),
347 MDString::get(VMContext, Name),
349 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
350 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
351 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
352 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
353 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
355 MDString::get(VMContext, PropertyName),
356 MDString::get(VMContext, GetterName),
357 MDString::get(VMContext, SetterName),
358 ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes)
360 return DIType(MDNode::get(VMContext, Elts));
363 /// createObjCIVar - Create debugging information entry for Objective-C
364 /// instance variable.
365 DIType DIBuilder::createObjCIVar(StringRef Name,
366 DIFile File, unsigned LineNumber,
367 uint64_t SizeInBits, uint64_t AlignInBits,
368 uint64_t OffsetInBits, unsigned Flags,
369 DIType Ty, MDNode *PropertyNode) {
370 // TAG_member is encoded in DIDerivedType format.
372 GetTagConstant(VMContext, dwarf::DW_TAG_member),
373 getNonCompileUnitScope(File),
374 MDString::get(VMContext, Name),
376 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
377 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
378 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
379 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
380 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
384 return DIType(MDNode::get(VMContext, Elts));
387 /// createObjCProperty - Create debugging information entry for Objective-C
389 DIObjCProperty DIBuilder::createObjCProperty(StringRef Name,
390 DIFile File, unsigned LineNumber,
391 StringRef GetterName,
392 StringRef SetterName,
393 unsigned PropertyAttributes,
396 GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property),
397 MDString::get(VMContext, Name),
399 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
400 MDString::get(VMContext, GetterName),
401 MDString::get(VMContext, SetterName),
402 ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes),
405 return DIObjCProperty(MDNode::get(VMContext, Elts));
408 /// createClassType - Create debugging information entry for a class.
409 DIType DIBuilder::createClassType(DIDescriptor Context, StringRef Name,
410 DIFile File, unsigned LineNumber,
411 uint64_t SizeInBits, uint64_t AlignInBits,
412 uint64_t OffsetInBits, unsigned Flags,
413 DIType DerivedFrom, DIArray Elements,
414 MDNode *VTableHolder, MDNode *TemplateParams) {
415 // TAG_class_type is encoded in DICompositeType format.
417 GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
418 getNonCompileUnitScope(Context),
419 MDString::get(VMContext, Name),
421 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
422 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
423 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
424 ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
425 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
428 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
432 return DIType(MDNode::get(VMContext, Elts));
435 /// createTemplateTypeParameter - Create debugging information for template
437 DITemplateTypeParameter
438 DIBuilder::createTemplateTypeParameter(DIDescriptor Context, StringRef Name,
439 DIType Ty, MDNode *File, unsigned LineNo,
442 GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter),
443 getNonCompileUnitScope(Context),
444 MDString::get(VMContext, Name),
447 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
448 ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
450 return DITemplateTypeParameter(MDNode::get(VMContext, Elts));
453 /// createTemplateValueParameter - Create debugging information for template
455 DITemplateValueParameter
456 DIBuilder::createTemplateValueParameter(DIDescriptor Context, StringRef Name,
457 DIType Ty, uint64_t Val,
458 MDNode *File, unsigned LineNo,
461 GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter),
462 getNonCompileUnitScope(Context),
463 MDString::get(VMContext, Name),
465 ConstantInt::get(Type::getInt64Ty(VMContext), Val),
467 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
468 ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
470 return DITemplateValueParameter(MDNode::get(VMContext, Elts));
473 /// createStructType - Create debugging information entry for a struct.
474 DIType DIBuilder::createStructType(DIDescriptor Context, StringRef Name,
475 DIFile File, unsigned LineNumber,
476 uint64_t SizeInBits, uint64_t AlignInBits,
477 unsigned Flags, DIArray Elements,
478 unsigned RunTimeLang) {
479 // TAG_structure_type is encoded in DICompositeType format.
481 GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
482 getNonCompileUnitScope(Context),
483 MDString::get(VMContext, Name),
485 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
486 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
487 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
488 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
489 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
492 ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
493 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
495 return DIType(MDNode::get(VMContext, Elts));
498 /// createUnionType - Create debugging information entry for an union.
499 DIType DIBuilder::createUnionType(DIDescriptor Scope, StringRef Name,
501 unsigned LineNumber, uint64_t SizeInBits,
502 uint64_t AlignInBits, unsigned Flags,
503 DIArray Elements, unsigned RunTimeLang) {
504 // TAG_union_type is encoded in DICompositeType format.
506 GetTagConstant(VMContext, dwarf::DW_TAG_union_type),
507 getNonCompileUnitScope(Scope),
508 MDString::get(VMContext, Name),
510 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
511 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
512 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
513 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
514 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
517 ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
518 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
520 return DIType(MDNode::get(VMContext, Elts));
523 /// createSubroutineType - Create subroutine type.
524 DIType DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) {
525 // TAG_subroutine_type is encoded in DICompositeType format.
527 GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
528 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
529 MDString::get(VMContext, ""),
530 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
531 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
532 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
533 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
534 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
535 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
538 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
539 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
541 return DIType(MDNode::get(VMContext, Elts));
544 /// createEnumerationType - Create debugging information entry for an
546 DIType DIBuilder::createEnumerationType(DIDescriptor Scope, StringRef Name,
547 DIFile File, unsigned LineNumber,
549 uint64_t AlignInBits,
551 // TAG_enumeration_type is encoded in DICompositeType format.
553 GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
554 getNonCompileUnitScope(Scope),
555 MDString::get(VMContext, Name),
557 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
558 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
559 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
560 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
561 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
564 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
565 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
567 MDNode *Node = MDNode::get(VMContext, Elts);
568 AllEnumTypes.push_back(Node);
572 /// createArrayType - Create debugging information entry for an array.
573 DIType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits,
574 DIType Ty, DIArray Subscripts) {
575 // TAG_array_type is encoded in DICompositeType format.
577 GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
579 MDString::get(VMContext, ""),
581 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
582 ConstantInt::get(Type::getInt64Ty(VMContext), Size),
583 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
584 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
585 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
588 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
589 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
591 return DIType(MDNode::get(VMContext, Elts));
594 /// createVectorType - Create debugging information entry for a vector.
595 DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
596 DIType Ty, DIArray Subscripts) {
597 // TAG_vector_type is encoded in DICompositeType format.
599 GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
601 MDString::get(VMContext, ""),
603 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
604 ConstantInt::get(Type::getInt64Ty(VMContext), Size),
605 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
606 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
607 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
610 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
611 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
613 return DIType(MDNode::get(VMContext, Elts));
616 /// createArtificialType - Create a new DIType with "artificial" flag set.
617 DIType DIBuilder::createArtificialType(DIType Ty) {
618 if (Ty.isArtificial())
621 SmallVector<Value *, 9> Elts;
623 assert (N && "Unexpected input DIType!");
624 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
625 if (Value *V = N->getOperand(i))
628 Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
631 unsigned CurFlags = Ty.getFlags();
632 CurFlags = CurFlags | DIType::FlagArtificial;
634 // Flags are stored at this slot.
635 Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
637 return DIType(MDNode::get(VMContext, Elts));
640 /// retainType - Retain DIType in a module even if it is not referenced
641 /// through debug info anchors.
642 void DIBuilder::retainType(DIType T) {
643 AllRetainTypes.push_back(T);
646 /// createUnspecifiedParameter - Create unspeicified type descriptor
647 /// for the subroutine type.
648 DIDescriptor DIBuilder::createUnspecifiedParameter() {
650 GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters)
652 return DIDescriptor(MDNode::get(VMContext, Elts));
655 /// createTemporaryType - Create a temporary forward-declared type.
656 DIType DIBuilder::createTemporaryType() {
657 // Give the temporary MDNode a tag. It doesn't matter what tag we
658 // use here as long as DIType accepts it.
659 Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
660 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
664 /// createTemporaryType - Create a temporary forward-declared type.
665 DIType DIBuilder::createTemporaryType(DIFile F) {
666 // Give the temporary MDNode a tag. It doesn't matter what tag we
667 // use here as long as DIType accepts it.
669 GetTagConstant(VMContext, DW_TAG_base_type),
674 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
678 /// createForwardDecl - Create a temporary forward-declared type that
679 /// can be RAUW'd if the full type is seen.
680 DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIFile F,
681 unsigned Line, unsigned RuntimeLang) {
682 // Create a temporary MDNode.
684 GetTagConstant(VMContext, Tag),
686 MDString::get(VMContext, Name),
688 ConstantInt::get(Type::getInt32Ty(VMContext), Line),
689 // To ease transition include sizes etc of 0.
690 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
691 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
692 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
693 ConstantInt::get(Type::getInt32Ty(VMContext),
694 DIDescriptor::FlagFwdDecl),
697 ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
699 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
703 /// getOrCreateArray - Get a DIArray, create one if required.
704 DIArray DIBuilder::getOrCreateArray(ArrayRef<Value *> Elements) {
705 if (Elements.empty()) {
706 Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
707 return DIArray(MDNode::get(VMContext, Null));
709 return DIArray(MDNode::get(VMContext, Elements));
712 /// getOrCreateSubrange - Create a descriptor for a value range. This
713 /// implicitly uniques the values returned.
714 DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Hi) {
716 GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
717 ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
718 ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
721 return DISubrange(MDNode::get(VMContext, Elts));
724 /// createGlobalVariable - Create a new descriptor for the specified global.
725 DIGlobalVariable DIBuilder::
726 createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber,
727 DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
729 GetTagConstant(VMContext, dwarf::DW_TAG_variable),
730 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
732 MDString::get(VMContext, Name),
733 MDString::get(VMContext, Name),
734 MDString::get(VMContext, Name),
736 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
738 ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
739 ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
742 MDNode *Node = MDNode::get(VMContext, Elts);
743 AllGVs.push_back(Node);
744 return DIGlobalVariable(Node);
747 /// createStaticVariable - Create a new descriptor for the specified static
749 DIGlobalVariable DIBuilder::
750 createStaticVariable(DIDescriptor Context, StringRef Name,
751 StringRef LinkageName, DIFile F, unsigned LineNumber,
752 DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
754 GetTagConstant(VMContext, dwarf::DW_TAG_variable),
755 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
756 getNonCompileUnitScope(Context),
757 MDString::get(VMContext, Name),
758 MDString::get(VMContext, Name),
759 MDString::get(VMContext, LinkageName),
761 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
763 ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
764 ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
767 MDNode *Node = MDNode::get(VMContext, Elts);
768 AllGVs.push_back(Node);
769 return DIGlobalVariable(Node);
772 /// createVariable - Create a new descriptor for the specified variable.
773 DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope,
774 StringRef Name, DIFile File,
775 unsigned LineNo, DIType Ty,
776 bool AlwaysPreserve, unsigned Flags,
779 GetTagConstant(VMContext, Tag),
780 getNonCompileUnitScope(Scope),
781 MDString::get(VMContext, Name),
783 ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))),
785 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
786 Constant::getNullValue(Type::getInt32Ty(VMContext)),
788 MDNode *Node = MDNode::get(VMContext, Elts);
789 if (AlwaysPreserve) {
790 // The optimizer may remove local variable. If there is an interest
791 // to preserve variable info in such situation then stash it in a
793 DISubprogram Fn(getDISubprogram(Scope));
794 NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, Fn);
795 FnLocals->addOperand(Node);
797 return DIVariable(Node);
800 /// createComplexVariable - Create a new descriptor for the specified variable
801 /// which has a complex address expression for its address.
802 DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
803 StringRef Name, DIFile F,
805 DIType Ty, ArrayRef<Value *> Addr,
807 SmallVector<Value *, 15> Elts;
808 Elts.push_back(GetTagConstant(VMContext, Tag));
809 Elts.push_back(getNonCompileUnitScope(Scope)),
810 Elts.push_back(MDString::get(VMContext, Name));
812 Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext),
813 (LineNo | (ArgNo << 24))));
815 Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
816 Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
817 Elts.append(Addr.begin(), Addr.end());
819 return DIVariable(MDNode::get(VMContext, Elts));
822 /// createFunction - Create a new descriptor for the specified function.
823 DISubprogram DIBuilder::createFunction(DIDescriptor Context,
825 StringRef LinkageName,
826 DIFile File, unsigned LineNo,
828 bool isLocalToUnit, bool isDefinition,
830 unsigned Flags, bool isOptimized,
834 Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
835 MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
836 Value *TVElts[] = { Temp };
837 MDNode *THolder = MDNode::get(VMContext, TVElts);
840 GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
841 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
842 getNonCompileUnitScope(Context),
843 MDString::get(VMContext, Name),
844 MDString::get(VMContext, Name),
845 MDString::get(VMContext, LinkageName),
847 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
849 ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
850 ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
851 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
852 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
854 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
855 ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
860 ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine)
862 MDNode *Node = MDNode::get(VMContext, Elts);
864 // Create a named metadata so that we do not lose this mdnode.
865 AllSubprograms.push_back(Node);
866 return DISubprogram(Node);
869 /// createMethod - Create a new descriptor for the specified C++ method.
870 DISubprogram DIBuilder::createMethod(DIDescriptor Context,
872 StringRef LinkageName,
874 unsigned LineNo, DIType Ty,
877 unsigned VK, unsigned VIndex,
878 MDNode *VTableHolder,
883 Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
884 MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
885 Value *TVElts[] = { Temp };
886 MDNode *THolder = MDNode::get(VMContext, TVElts);
889 GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
890 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
891 getNonCompileUnitScope(Context),
892 MDString::get(VMContext, Name),
893 MDString::get(VMContext, Name),
894 MDString::get(VMContext, LinkageName),
896 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
898 ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
899 ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
900 ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
901 ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
903 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
904 ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
907 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
909 // FIXME: Do we want to use a different scope lines?
910 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
912 MDNode *Node = MDNode::get(VMContext, Elts);
913 return DISubprogram(Node);
916 /// createNameSpace - This creates new descriptor for a namespace
917 /// with the specified parent scope.
918 DINameSpace DIBuilder::createNameSpace(DIDescriptor Scope, StringRef Name,
919 DIFile File, unsigned LineNo) {
921 GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
922 getNonCompileUnitScope(Scope),
923 MDString::get(VMContext, Name),
925 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
927 return DINameSpace(MDNode::get(VMContext, Elts));
930 /// createLexicalBlockFile - This creates a new MDNode that encapsulates
931 /// an existing scope with a new filename.
932 DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope,
935 GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
939 return DILexicalBlockFile(MDNode::get(VMContext, Elts));
942 DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File,
943 unsigned Line, unsigned Col) {
944 // Defeat MDNode uniqing for lexical blocks by using unique id.
945 static unsigned int unique_id = 0;
947 GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
948 getNonCompileUnitScope(Scope),
949 ConstantInt::get(Type::getInt32Ty(VMContext), Line),
950 ConstantInt::get(Type::getInt32Ty(VMContext), Col),
952 ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
954 return DILexicalBlock(MDNode::get(VMContext, Elts));
957 /// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
958 Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
959 Instruction *InsertBefore) {
960 assert(Storage && "no storage passed to dbg.declare");
961 assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
963 DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
965 Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
966 return CallInst::Create(DeclareFn, Args, "", InsertBefore);
969 /// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
970 Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
971 BasicBlock *InsertAtEnd) {
972 assert(Storage && "no storage passed to dbg.declare");
973 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
975 DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
977 Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
979 // If this block already has a terminator then insert this intrinsic
980 // before the terminator.
981 if (TerminatorInst *T = InsertAtEnd->getTerminator())
982 return CallInst::Create(DeclareFn, Args, "", T);
984 return CallInst::Create(DeclareFn, Args, "", InsertAtEnd);
987 /// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
988 Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
990 Instruction *InsertBefore) {
991 assert(V && "no value passed to dbg.value");
992 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
994 ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
996 Value *Args[] = { MDNode::get(V->getContext(), V),
997 ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
999 return CallInst::Create(ValueFn, Args, "", InsertBefore);
1002 /// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
1003 Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
1005 BasicBlock *InsertAtEnd) {
1006 assert(V && "no value passed to dbg.value");
1007 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
1009 ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
1011 Value *Args[] = { MDNode::get(V->getContext(), V),
1012 ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
1014 return CallInst::Create(ValueFn, Args, "", InsertAtEnd);