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 SmallVector<Value *, 4> Variables;
51 if (NamedMDNode *NMD = getFnSpecificMDNode(M, SP)) {
52 for (unsigned ii = 0, ee = NMD->getNumOperands(); ii != ee; ++ii)
53 Variables.push_back(NMD->getOperand(ii));
54 NMD->eraseFromParent();
56 if (MDNode *Temp = SP.getVariablesNodes()) {
57 DIArray AV = getOrCreateArray(Variables);
58 DIType(Temp).replaceAllUsesWith(AV);
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
234 DIType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {
235 assert(RTy.Verify() && "Unable to create reference type");
236 // References are encoded in DIDerivedType format.
238 GetTagConstant(VMContext, Tag),
242 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
243 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
244 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
245 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
246 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
249 return DIType(MDNode::get(VMContext, Elts));
252 /// createTypedef - Create debugging information entry for a typedef.
253 DIType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
254 unsigned LineNo, DIDescriptor Context) {
255 // typedefs are encoded in DIDerivedType format.
256 assert(Ty.Verify() && "Invalid typedef type!");
258 GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
259 getNonCompileUnitScope(Context),
260 MDString::get(VMContext, Name),
262 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
263 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
264 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
265 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
266 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
269 return DIType(MDNode::get(VMContext, Elts));
272 /// createFriend - Create debugging information entry for a 'friend'.
273 DIType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
274 // typedefs are encoded in DIDerivedType format.
275 assert(Ty.Verify() && "Invalid type!");
276 assert(FriendTy.Verify() && "Invalid friend type!");
278 GetTagConstant(VMContext, dwarf::DW_TAG_friend),
282 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
283 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
284 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
285 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
286 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
289 return DIType(MDNode::get(VMContext, Elts));
292 /// createInheritance - Create debugging information entry to establish
293 /// inheritance relationship between two types.
294 DIType DIBuilder::createInheritance(DIType Ty, DIType BaseTy,
295 uint64_t BaseOffset, unsigned Flags) {
296 assert(Ty.Verify() && "Unable to create inheritance");
297 // TAG_inheritance is encoded in DIDerivedType format.
299 GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
303 ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
304 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
305 ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
306 ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset),
307 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
310 return DIType(MDNode::get(VMContext, Elts));
313 /// createMemberType - Create debugging information entry for a member.
314 DIType DIBuilder::createMemberType(DIDescriptor Scope, StringRef Name,
315 DIFile File, unsigned LineNumber,
316 uint64_t SizeInBits, uint64_t AlignInBits,
317 uint64_t OffsetInBits, unsigned Flags,
319 // TAG_member is encoded in DIDerivedType format.
321 GetTagConstant(VMContext, dwarf::DW_TAG_member),
322 getNonCompileUnitScope(Scope),
323 MDString::get(VMContext, Name),
325 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
326 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
327 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
328 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
329 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
332 return DIType(MDNode::get(VMContext, Elts));
335 /// createObjCIVar - Create debugging information entry for Objective-C
336 /// instance variable.
337 DIType DIBuilder::createObjCIVar(StringRef Name,
338 DIFile File, unsigned LineNumber,
339 uint64_t SizeInBits, uint64_t AlignInBits,
340 uint64_t OffsetInBits, unsigned Flags,
341 DIType Ty, StringRef PropertyName,
342 StringRef GetterName, StringRef SetterName,
343 unsigned PropertyAttributes) {
344 // TAG_member is encoded in DIDerivedType format.
346 GetTagConstant(VMContext, dwarf::DW_TAG_member),
347 getNonCompileUnitScope(File),
348 MDString::get(VMContext, Name),
350 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
351 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
352 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
353 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
354 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
356 MDString::get(VMContext, PropertyName),
357 MDString::get(VMContext, GetterName),
358 MDString::get(VMContext, SetterName),
359 ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes)
361 return DIType(MDNode::get(VMContext, Elts));
364 /// createObjCIVar - Create debugging information entry for Objective-C
365 /// instance variable.
366 DIType DIBuilder::createObjCIVar(StringRef Name,
367 DIFile File, unsigned LineNumber,
368 uint64_t SizeInBits, uint64_t AlignInBits,
369 uint64_t OffsetInBits, unsigned Flags,
370 DIType Ty, MDNode *PropertyNode) {
371 // TAG_member is encoded in DIDerivedType format.
373 GetTagConstant(VMContext, dwarf::DW_TAG_member),
374 getNonCompileUnitScope(File),
375 MDString::get(VMContext, Name),
377 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
378 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
379 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
380 ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
381 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
385 return DIType(MDNode::get(VMContext, Elts));
388 /// createObjCProperty - Create debugging information entry for Objective-C
390 DIObjCProperty DIBuilder::createObjCProperty(StringRef Name,
391 DIFile File, unsigned LineNumber,
392 StringRef GetterName,
393 StringRef SetterName,
394 unsigned PropertyAttributes,
397 GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property),
398 MDString::get(VMContext, Name),
400 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
401 MDString::get(VMContext, GetterName),
402 MDString::get(VMContext, SetterName),
403 ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes),
406 return DIObjCProperty(MDNode::get(VMContext, Elts));
409 /// createClassType - Create debugging information entry for a class.
410 DIType DIBuilder::createClassType(DIDescriptor Context, StringRef Name,
411 DIFile File, unsigned LineNumber,
412 uint64_t SizeInBits, uint64_t AlignInBits,
413 uint64_t OffsetInBits, unsigned Flags,
414 DIType DerivedFrom, DIArray Elements,
415 MDNode *VTableHolder, MDNode *TemplateParams) {
416 // TAG_class_type is encoded in DICompositeType format.
418 GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
419 getNonCompileUnitScope(Context),
420 MDString::get(VMContext, Name),
422 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
423 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
424 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
425 ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
426 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
429 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
433 return DIType(MDNode::get(VMContext, Elts));
436 /// createTemplateTypeParameter - Create debugging information for template
438 DITemplateTypeParameter
439 DIBuilder::createTemplateTypeParameter(DIDescriptor Context, StringRef Name,
440 DIType Ty, MDNode *File, unsigned LineNo,
443 GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter),
444 getNonCompileUnitScope(Context),
445 MDString::get(VMContext, Name),
448 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
449 ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
451 return DITemplateTypeParameter(MDNode::get(VMContext, Elts));
454 /// createTemplateValueParameter - Create debugging information for template
456 DITemplateValueParameter
457 DIBuilder::createTemplateValueParameter(DIDescriptor Context, StringRef Name,
458 DIType Ty, uint64_t Val,
459 MDNode *File, unsigned LineNo,
462 GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter),
463 getNonCompileUnitScope(Context),
464 MDString::get(VMContext, Name),
466 ConstantInt::get(Type::getInt64Ty(VMContext), Val),
468 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
469 ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
471 return DITemplateValueParameter(MDNode::get(VMContext, Elts));
474 /// createStructType - Create debugging information entry for a struct.
475 DIType DIBuilder::createStructType(DIDescriptor Context, StringRef Name,
476 DIFile File, unsigned LineNumber,
477 uint64_t SizeInBits, uint64_t AlignInBits,
478 unsigned Flags, DIArray Elements,
479 unsigned RunTimeLang) {
480 // TAG_structure_type is encoded in DICompositeType format.
482 GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
483 getNonCompileUnitScope(Context),
484 MDString::get(VMContext, Name),
486 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
487 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
488 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
489 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
490 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
493 ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
494 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
496 return DIType(MDNode::get(VMContext, Elts));
499 /// createUnionType - Create debugging information entry for an union.
500 DIType DIBuilder::createUnionType(DIDescriptor Scope, StringRef Name,
502 unsigned LineNumber, uint64_t SizeInBits,
503 uint64_t AlignInBits, unsigned Flags,
504 DIArray Elements, unsigned RunTimeLang) {
505 // TAG_union_type is encoded in DICompositeType format.
507 GetTagConstant(VMContext, dwarf::DW_TAG_union_type),
508 getNonCompileUnitScope(Scope),
509 MDString::get(VMContext, Name),
511 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
512 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
513 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
514 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
515 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
518 ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
519 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
521 return DIType(MDNode::get(VMContext, Elts));
524 /// createSubroutineType - Create subroutine type.
525 DIType DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) {
526 // TAG_subroutine_type is encoded in DICompositeType format.
528 GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
529 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
530 MDString::get(VMContext, ""),
531 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
532 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
533 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
534 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
535 ConstantInt::get(Type::getInt64Ty(VMContext), 0),
536 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
539 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
540 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
542 return DIType(MDNode::get(VMContext, Elts));
545 /// createEnumerationType - Create debugging information entry for an
547 DIType DIBuilder::createEnumerationType(DIDescriptor Scope, StringRef Name,
548 DIFile File, unsigned LineNumber,
550 uint64_t AlignInBits,
552 DIType ClassType, unsigned Flags) {
553 // TAG_enumeration_type is encoded in DICompositeType format.
555 GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
556 getNonCompileUnitScope(Scope),
557 MDString::get(VMContext, Name),
559 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
560 ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
561 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
562 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
563 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
566 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
567 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
569 MDNode *Node = MDNode::get(VMContext, Elts);
570 AllEnumTypes.push_back(Node);
574 /// createArrayType - Create debugging information entry for an array.
575 DIType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits,
576 DIType Ty, DIArray Subscripts) {
577 // TAG_array_type is encoded in DICompositeType format.
579 GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
581 MDString::get(VMContext, ""),
583 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
584 ConstantInt::get(Type::getInt64Ty(VMContext), Size),
585 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
586 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
587 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
590 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
591 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
593 return DIType(MDNode::get(VMContext, Elts));
596 /// createVectorType - Create debugging information entry for a vector.
597 DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
598 DIType Ty, DIArray Subscripts) {
599 // TAG_vector_type is encoded in DICompositeType format.
601 GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
603 MDString::get(VMContext, ""),
605 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
606 ConstantInt::get(Type::getInt64Ty(VMContext), Size),
607 ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
608 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
609 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
612 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
613 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
615 return DIType(MDNode::get(VMContext, Elts));
618 /// createArtificialType - Create a new DIType with "artificial" flag set.
619 DIType DIBuilder::createArtificialType(DIType Ty) {
620 if (Ty.isArtificial())
623 SmallVector<Value *, 9> Elts;
625 assert (N && "Unexpected input DIType!");
626 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
627 if (Value *V = N->getOperand(i))
630 Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
633 unsigned CurFlags = Ty.getFlags();
634 CurFlags = CurFlags | DIType::FlagArtificial;
636 // Flags are stored at this slot.
637 Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
639 return DIType(MDNode::get(VMContext, Elts));
642 /// retainType - Retain DIType in a module even if it is not referenced
643 /// through debug info anchors.
644 void DIBuilder::retainType(DIType T) {
645 AllRetainTypes.push_back(T);
648 /// createUnspecifiedParameter - Create unspeicified type descriptor
649 /// for the subroutine type.
650 DIDescriptor DIBuilder::createUnspecifiedParameter() {
652 GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters)
654 return DIDescriptor(MDNode::get(VMContext, Elts));
657 /// createTemporaryType - Create a temporary forward-declared type.
658 DIType DIBuilder::createTemporaryType() {
659 // Give the temporary MDNode a tag. It doesn't matter what tag we
660 // use here as long as DIType accepts it.
661 Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
662 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
666 /// createTemporaryType - Create a temporary forward-declared type.
667 DIType DIBuilder::createTemporaryType(DIFile F) {
668 // Give the temporary MDNode a tag. It doesn't matter what tag we
669 // use here as long as DIType accepts it.
671 GetTagConstant(VMContext, DW_TAG_base_type),
676 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
680 /// createForwardDecl - Create a temporary forward-declared type that
681 /// can be RAUW'd if the full type is seen.
682 DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name,
683 DIDescriptor Scope, DIFile F,
684 unsigned Line, unsigned RuntimeLang) {
685 // Create a temporary MDNode.
687 GetTagConstant(VMContext, Tag),
688 getNonCompileUnitScope(Scope),
689 MDString::get(VMContext, Name),
691 ConstantInt::get(Type::getInt32Ty(VMContext), Line),
692 // To ease transition include sizes etc of 0.
693 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
694 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
695 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
696 ConstantInt::get(Type::getInt32Ty(VMContext),
697 DIDescriptor::FlagFwdDecl),
700 ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
702 MDNode *Node = MDNode::getTemporary(VMContext, Elts);
706 /// getOrCreateArray - Get a DIArray, create one if required.
707 DIArray DIBuilder::getOrCreateArray(ArrayRef<Value *> Elements) {
708 if (Elements.empty()) {
709 Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
710 return DIArray(MDNode::get(VMContext, Null));
712 return DIArray(MDNode::get(VMContext, Elements));
715 /// getOrCreateSubrange - Create a descriptor for a value range. This
716 /// implicitly uniques the values returned.
717 DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Hi) {
719 GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
720 ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
721 ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
724 return DISubrange(MDNode::get(VMContext, Elts));
727 /// createGlobalVariable - Create a new descriptor for the specified global.
728 DIGlobalVariable DIBuilder::
729 createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber,
730 DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
732 GetTagConstant(VMContext, dwarf::DW_TAG_variable),
733 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
735 MDString::get(VMContext, Name),
736 MDString::get(VMContext, Name),
737 MDString::get(VMContext, Name),
739 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
741 ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
742 ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
745 MDNode *Node = MDNode::get(VMContext, Elts);
746 AllGVs.push_back(Node);
747 return DIGlobalVariable(Node);
750 /// createStaticVariable - Create a new descriptor for the specified static
752 DIGlobalVariable DIBuilder::
753 createStaticVariable(DIDescriptor Context, StringRef Name,
754 StringRef LinkageName, DIFile F, unsigned LineNumber,
755 DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
757 GetTagConstant(VMContext, dwarf::DW_TAG_variable),
758 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
759 getNonCompileUnitScope(Context),
760 MDString::get(VMContext, Name),
761 MDString::get(VMContext, Name),
762 MDString::get(VMContext, LinkageName),
764 ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
766 ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
767 ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
770 MDNode *Node = MDNode::get(VMContext, Elts);
771 AllGVs.push_back(Node);
772 return DIGlobalVariable(Node);
775 /// createVariable - Create a new descriptor for the specified variable.
776 DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope,
777 StringRef Name, DIFile File,
778 unsigned LineNo, DIType Ty,
779 bool AlwaysPreserve, unsigned Flags,
782 GetTagConstant(VMContext, Tag),
783 getNonCompileUnitScope(Scope),
784 MDString::get(VMContext, Name),
786 ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))),
788 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
789 Constant::getNullValue(Type::getInt32Ty(VMContext)),
791 MDNode *Node = MDNode::get(VMContext, Elts);
792 if (AlwaysPreserve) {
793 // The optimizer may remove local variable. If there is an interest
794 // to preserve variable info in such situation then stash it in a
796 DISubprogram Fn(getDISubprogram(Scope));
797 NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, Fn);
798 FnLocals->addOperand(Node);
800 return DIVariable(Node);
803 /// createComplexVariable - Create a new descriptor for the specified variable
804 /// which has a complex address expression for its address.
805 DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
806 StringRef Name, DIFile F,
808 DIType Ty, ArrayRef<Value *> Addr,
810 SmallVector<Value *, 15> Elts;
811 Elts.push_back(GetTagConstant(VMContext, Tag));
812 Elts.push_back(getNonCompileUnitScope(Scope)),
813 Elts.push_back(MDString::get(VMContext, Name));
815 Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext),
816 (LineNo | (ArgNo << 24))));
818 Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
819 Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
820 Elts.append(Addr.begin(), Addr.end());
822 return DIVariable(MDNode::get(VMContext, Elts));
825 /// createFunction - Create a new descriptor for the specified function.
826 DISubprogram DIBuilder::createFunction(DIDescriptor Context,
828 StringRef LinkageName,
829 DIFile File, unsigned LineNo,
831 bool isLocalToUnit, bool isDefinition,
833 unsigned Flags, bool isOptimized,
837 Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
838 MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
839 Value *TVElts[] = { Temp };
840 MDNode *THolder = MDNode::get(VMContext, TVElts);
843 GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
844 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
845 getNonCompileUnitScope(Context),
846 MDString::get(VMContext, Name),
847 MDString::get(VMContext, Name),
848 MDString::get(VMContext, LinkageName),
850 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
852 ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
853 ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
854 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
855 ConstantInt::get(Type::getInt32Ty(VMContext), 0),
857 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
858 ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
863 ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine)
865 MDNode *Node = MDNode::get(VMContext, Elts);
867 // Create a named metadata so that we do not lose this mdnode.
868 AllSubprograms.push_back(Node);
869 return DISubprogram(Node);
872 /// createMethod - Create a new descriptor for the specified C++ method.
873 DISubprogram DIBuilder::createMethod(DIDescriptor Context,
875 StringRef LinkageName,
877 unsigned LineNo, DIType Ty,
880 unsigned VK, unsigned VIndex,
881 MDNode *VTableHolder,
886 Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
887 MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
888 Value *TVElts[] = { Temp };
889 MDNode *THolder = MDNode::get(VMContext, TVElts);
892 GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
893 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
894 getNonCompileUnitScope(Context),
895 MDString::get(VMContext, Name),
896 MDString::get(VMContext, Name),
897 MDString::get(VMContext, LinkageName),
899 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
901 ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
902 ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
903 ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
904 ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
906 ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
907 ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
910 llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
912 // FIXME: Do we want to use different scope/lines?
913 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
915 MDNode *Node = MDNode::get(VMContext, Elts);
916 return DISubprogram(Node);
919 /// createNameSpace - This creates new descriptor for a namespace
920 /// with the specified parent scope.
921 DINameSpace DIBuilder::createNameSpace(DIDescriptor Scope, StringRef Name,
922 DIFile File, unsigned LineNo) {
924 GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
925 getNonCompileUnitScope(Scope),
926 MDString::get(VMContext, Name),
928 ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
930 return DINameSpace(MDNode::get(VMContext, Elts));
933 /// createLexicalBlockFile - This creates a new MDNode that encapsulates
934 /// an existing scope with a new filename.
935 DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope,
938 GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
942 return DILexicalBlockFile(MDNode::get(VMContext, Elts));
945 DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File,
946 unsigned Line, unsigned Col) {
947 // Defeat MDNode uniqing for lexical blocks by using unique id.
948 static unsigned int unique_id = 0;
950 GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
951 getNonCompileUnitScope(Scope),
952 ConstantInt::get(Type::getInt32Ty(VMContext), Line),
953 ConstantInt::get(Type::getInt32Ty(VMContext), Col),
955 ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
957 return DILexicalBlock(MDNode::get(VMContext, Elts));
960 /// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
961 Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
962 Instruction *InsertBefore) {
963 assert(Storage && "no storage passed to dbg.declare");
964 assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
966 DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
968 Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
969 return CallInst::Create(DeclareFn, Args, "", InsertBefore);
972 /// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
973 Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
974 BasicBlock *InsertAtEnd) {
975 assert(Storage && "no storage passed to dbg.declare");
976 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
978 DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
980 Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
982 // If this block already has a terminator then insert this intrinsic
983 // before the terminator.
984 if (TerminatorInst *T = InsertAtEnd->getTerminator())
985 return CallInst::Create(DeclareFn, Args, "", T);
987 return CallInst::Create(DeclareFn, Args, "", InsertAtEnd);
990 /// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
991 Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
993 Instruction *InsertBefore) {
994 assert(V && "no value passed to dbg.value");
995 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
997 ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
999 Value *Args[] = { MDNode::get(V->getContext(), V),
1000 ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
1002 return CallInst::Create(ValueFn, Args, "", InsertBefore);
1005 /// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
1006 Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
1008 BasicBlock *InsertAtEnd) {
1009 assert(V && "no value passed to dbg.value");
1010 assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
1012 ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
1014 Value *Args[] = { MDNode::get(V->getContext(), V),
1015 ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
1017 return CallInst::Create(ValueFn, Args, "", InsertAtEnd);