[LLVMbugs] [Bug 14021] New: Clang crashes in InitializationSequence -> CheckAccessDeclContext
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Thu Oct 4 09:21:07 PDT 2012
http://llvm.org/bugs/show_bug.cgi?id=14021
Bug #: 14021
Summary: Clang crashes in InitializationSequence ->
CheckAccessDeclContext
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: jvoung at google.com
CC: llvmbugs at cs.uiuc.edu
Classification: Unclassified
Created attachment 9306
--> http://llvm.org/bugs/attachment.cgi?id=9306
slightly reduced test
Attached is a delta "reduced" file (sorry it's still ~600lines).
This is for clang version 3.2 (trunk 165162) (llvm/trunk 165148).
When compiled for x86_64 on linux, and running the attached file with exactly
these arguments:
"""
clang -cc1 -triple i686-unknown-linux -emit-llvm-bc -disable-free
-mrelocation-model static -fmath-errno -target-linker-version 2.20.1
-momit-leaf-frame-pointer -nostdsysteminc -nobuiltininc -O2 -Wall
-Wfatal-errors -Wno-overloaded-virtual -Wno-variadic-macros -Wno-long-long
-fdeprecated-macro -fno-dwarf-directory-asm -mstackrealign -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fno-common -fdiagnostics-show-option
-fcolor-diagnostics -x c++ testcase-min-linux.i
"""
We get a crash after emitting an error message. Here is the stack trace.
=====================================
testcase-min-linux.i:6:11: fatal error: unknown type name 'decltype'
typedef decltype(nullptr) nullptr_t;
^
0 clang 0x0000000001e1294f
1 clang 0x0000000001e1485a
2 libpthread.so.0 0x00007f95210fecb0
3 clang 0x00000000011759ed clang::Decl::CheckAccessDeclContext()
const + 13
4 clang 0x0000000000c2153d
5 clang 0x0000000000c26624
clang::InitializationSequence::InitializationSequence(clang::Sema&,
clang::InitializedEntity const&, clang::InitializationKind const&,
clang::Expr**, unsigned int) + 2596
6 clang 0x0000000000bf73c2
7 clang 0x0000000000bf7ddc
clang::Sema::BuildBinaryTypeTrait(clang::BinaryTypeTrait,
clang::SourceLocation, clang::TypeSourceInfo*, clang::TypeSourceInfo*,
clang::SourceLocation) + 748
8 clang 0x0000000000d28b6c
9 clang 0x0000000000d33bfb
10 clang 0x0000000000d3bf47
11 clang 0x0000000000d33b83
12 clang 0x0000000000d4361d
13 clang 0x0000000000d34adb
14 clang 0x0000000000d2ba38
15 clang 0x0000000000d2f198
16 clang 0x0000000000d2f768
17 clang 0x0000000000d2fae6
18 clang 0x0000000000d37198
19 clang 0x0000000000d39a54
20 clang 0x0000000000d26895
21 clang 0x0000000000d27842
22 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
23 clang 0x0000000000d2942b
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 779
24 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
25 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
26 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
27 clang 0x0000000000a93061
clang::Sema::RequireCompleteDeclContext(clang::CXXScopeSpec&,
clang::DeclContext*) + 353
28 clang 0x0000000000bc687e
clang::Sema::BuildQualifiedDeclarationNameExpr(clang::CXXScopeSpec&,
clang::DeclarationNameInfo const&) + 110
29 clang 0x0000000000d3222f
30 clang 0x0000000000d3489b
31 clang 0x0000000000d3f120
32 clang 0x0000000000d34546
33 clang 0x0000000000d2ba38
34 clang 0x0000000000d2f198
35 clang 0x0000000000d2f768
36 clang 0x0000000000d2fae6
37 clang 0x0000000000d262ba
38 clang 0x0000000000d27842
39 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
40 clang 0x0000000000d50909
clang::TemplateDeclInstantiator::InstantiateTypedefNameDecl(clang::TypedefNameDecl*,
bool) + 409
41 clang 0x0000000000d50b48
clang::TemplateDeclInstantiator::VisitTypedefDecl(clang::TypedefDecl*) + 24
42 clang 0x0000000000d2a53e
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 3534
43 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
44 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
45 clang 0x0000000000a93061
clang::Sema::RequireCompleteDeclContext(clang::CXXScopeSpec&,
clang::DeclContext*) + 353
46 clang 0x0000000000cb8449
clang::Sema::CheckTypenameType(clang::ElaboratedTypeKeyword,
clang::SourceLocation, clang::NestedNameSpecifierLoc, clang::IdentifierInfo
const&, clang::SourceLocation) + 217
47 clang 0x0000000000d310a9
48 clang 0x0000000000d26248
49 clang 0x0000000000d27842
50 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
51 clang 0x0000000000d2942b
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 779
52 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
53 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
54 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
55 clang 0x0000000000b5f2b1
clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange,
bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) +
305
56 clang 0x0000000000d29467
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 839
57 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
58 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
59 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
60 clang 0x0000000000b5f2b1
clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange,
bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) +
305
61 clang 0x0000000000d29467
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 839
62 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
63 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
64 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
65 clang 0x0000000000b5f2b1
clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange,
bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) +
305
66 clang 0x0000000000d29467
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 839
67 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
68 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
69 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
70 clang 0x0000000000b5f2b1
clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange,
bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) +
305
71 clang 0x0000000000d29467
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 839
72 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
73 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
74 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
75 clang 0x0000000000a93061
clang::Sema::RequireCompleteDeclContext(clang::CXXScopeSpec&,
clang::DeclContext*) + 353
76 clang 0x0000000000cb8449
clang::Sema::CheckTypenameType(clang::ElaboratedTypeKeyword,
clang::SourceLocation, clang::NestedNameSpecifierLoc, clang::IdentifierInfo
const&, clang::SourceLocation) + 217
77 clang 0x0000000000d310a9
78 clang 0x0000000000d26248
79 clang 0x0000000000d27842
80 clang 0x0000000000d2bab4
81 clang 0x0000000000d2f198
82 clang 0x0000000000d2f768
83 clang 0x0000000000d2fae6
84 clang 0x0000000000d262ba
85 clang 0x0000000000d27842
86 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
87 clang 0x0000000000d50909
clang::TemplateDeclInstantiator::InstantiateTypedefNameDecl(clang::TypedefNameDecl*,
bool) + 409
88 clang 0x0000000000d50b48
clang::TemplateDeclInstantiator::VisitTypedefDecl(clang::TypedefDecl*) + 24
89 clang 0x0000000000d2a53e
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 3534
90 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
91 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
92 clang 0x0000000000a93061
clang::Sema::RequireCompleteDeclContext(clang::CXXScopeSpec&,
clang::DeclContext*) + 353
93 clang 0x0000000000cb8449
clang::Sema::CheckTypenameType(clang::ElaboratedTypeKeyword,
clang::SourceLocation, clang::NestedNameSpecifierLoc, clang::IdentifierInfo
const&, clang::SourceLocation) + 217
94 clang 0x0000000000d310a9
95 clang 0x0000000000d26248
96 clang 0x0000000000d27842
97 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
98 clang 0x0000000000d2942b
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 779
99 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
100 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
101 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
102 clang 0x0000000000b5f2b1
clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange,
bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) +
305
103 clang 0x0000000000d29467
clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&) + 839
104 clang 0x0000000000d29a08
clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool) + 664
105 clang 0x0000000000d2b35c
clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind,
bool) + 1244
106 clang 0x0000000000d7343b
clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType,
clang::Sema::TypeDiagnoser&) + 1307
107 clang 0x0000000000a93061
clang::Sema::RequireCompleteDeclContext(clang::CXXScopeSpec&,
clang::DeclContext*) + 353
108 clang 0x0000000000a941de
clang::Sema::BuildCXXNestedNameSpecifier(clang::Scope*, clang::IdentifierInfo&,
clang::SourceLocation, clang::SourceLocation, clang::QualType, bool,
clang::CXXScopeSpec&, clang::NamedDecl*, bool) + 1550
109 clang 0x0000000000d304a1
110 clang 0x0000000000d30ca2
111 clang 0x0000000000d37126
112 clang 0x0000000000d3924b
113 clang 0x0000000000d26907
114 clang 0x0000000000d27842
115 clang 0x0000000000d29073
clang::Sema::SubstType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName) + 163
116 clang 0x0000000000d50909
clang::TemplateDeclInstantiator::InstantiateTypedefNameDecl(clang::TypedefNameDecl*,
bool) + 409
117 clang 0x0000000000d50b48
clang::TemplateDeclInstantiator::VisitTypedefDecl(clang::TypedefDecl*) + 24
118 clang 0x0000000000d525e7 clang::Sema::SubstDecl(clang::Decl*,
clang::DeclContext*, clang::MultiLevelTemplateArgumentList const&) + 119
119 clang 0x0000000000d44044
120 clang 0x0000000000d45e51
121 clang 0x0000000000d44917
122 clang 0x0000000000d470df clang::Sema::SubstStmt(clang::Stmt*,
clang::MultiLevelTemplateArgumentList const&) + 79
123 clang 0x0000000000d5ab53
clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool) + 803
124 clang 0x0000000000d5a511
clang::Sema::PerformPendingInstantiations(bool) + 657
125 clang 0x0000000000d5abe2
clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool) + 946
126 clang 0x0000000000d5a511
clang::Sema::PerformPendingInstantiations(bool) + 657
127 clang 0x0000000000a82642 clang::Sema::ActOnEndOfTranslationUnit()
+ 466
128 clang 0x00000000009f9096
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 374
129 clang 0x00000000009f0c4d clang::ParseAST(clang::Sema&, bool,
bool) + 509
130 clang 0x0000000000749551 clang::FrontendAction::Execute() + 145
131 clang 0x000000000072a734
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 340
132 clang 0x0000000000710b36
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1478
133 clang 0x0000000000708458 cc1_main(char const**, char const**,
char const*, void*) + 776
134 clang 0x00000000006f48d3 main + 787
135 libc.so.6 0x00007f952033d76d __libc_start_main + 237
136 clang 0x0000000000705f01
Stack dump:
0. Program arguments: clang -cc1 -triple i686-unknown-linux -emit-llvm-bc
-disable-free -mrelocation-model static -fmath-errno -target-linker-version
2.20.1 -momit-leaf-frame-pointer -nostdsysteminc -nobuiltininc -O2 -Wall
-Wfatal-errors -Wno-overloaded-virtual -Wno-variadic-macros -Wno-long-long
-fdeprecated-macro -fno-dwarf-directory-asm -mstackrealign -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fno-common -fdiagnostics-show-option
-fcolor-diagnostics -x c++ testcase-min-linux.i
1. <eof> parser at end of file
2. testcase-min-linux.i:630:32: instantiating function definition
'media_yahoo'
3. testcase-min-linux.i:610:9: instantiating function definition
'bazo_media'
Segmentation fault (core dumped)
=====================================
When you change the commandline slightly, e.g., if you truncate
i686-unknown-linux to i686-unkn-linux, it will not crash.
Valgrind memcheck shows:
==4242== Invalid read of size 8
==4242== at 0xC2152C: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xC26623:
clang::InitializationSequence::InitializationSequence(clang::Sema&,
clang::InitializedEntity const&, clang::InitializationKind const&,
clang::Expr**, unsigned int) (in /usr/local/llvm-install/bin/clang)
==4242== by 0xBF73C1: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xBF7DDB:
clang::Sema::BuildBinaryTypeTrait(clang::BinaryTypeTrait,
clang::SourceLocation, clang::TypeSourceInfo*, clang::TypeSourceInfo*,
clang::SourceLocation) (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD28B6B: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD33BFA: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD3BF46: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD33B82: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD4361C: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD34ADA: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD2BA37: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xD2F197: ??? (in /usr/local/llvm-install/bin/clang)
==4242== Address 0x5fad830 is 32 bytes inside a block of size 56 free'd
==4242== at 0x4C2CDFD: operator delete(void*)
(/home/samsonov/valgrind-variant/valgrind-test/coregrind/m_replacemalloc/vg_replace_malloc.c:456)
==4242== by 0x117A357: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0x1177719: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0x117788D:
clang::DeclContext::makeDeclVisibleInContextImpl(clang::NamedDecl*, bool) (in
/usr/local/llvm-install/bin/clang)
==4242== by 0x1178274:
clang::DeclContext::makeDeclVisibleInContextWithFlags(clang::NamedDecl*, bool,
bool) (in /usr/local/llvm-install/bin/clang)
==4242== by 0xB51364:
clang::Sema::DeclareImplicitDestructor(clang::CXXRecordDecl*) (in
/usr/local/llvm-install/bin/clang)
==4242== by 0xC3F1E6:
clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*,
clang::Sema::CXXSpecialMember, bool, bool, bool, bool, bool) (in
/usr/local/llvm-install/bin/clang)
==4242== by 0xC3F3F4: clang::Sema::LookupDestructor(clang::CXXRecordDecl*)
(in /usr/local/llvm-install/bin/clang)
==4242== by 0xBFC452: clang::Sema::MaybeBindToTemporary(clang::Expr*) (in
/usr/local/llvm-install/bin/clang)
==4242== by 0xC1FBA4: ??? (in /usr/local/llvm-install/bin/clang)
==4242== by 0xC29405: clang::InitializationSequence::Perform(clang::Sema&,
clang::InitializedEntity const&, clang::InitializationKind const&,
llvm::MutableArrayRef<clang::Expr*>, clang::QualType*) (in
/usr/local/llvm-install/bin/clang)
==4242== by 0xBF7924: ??? (in /usr/local/llvm-install/bin/clang)
Perhaps that invalid read is related to the crash (since the crash also has
InitializationSequence in the stack).
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