[llvm-bugs] [Bug 46481] New: Clang crash in clang/lib/AST/DeclBase.cpp:989: bool clang::Decl::AccessDeclContextSanity() const: Assertion `Access != AS_none && "Access specifier is AS_none inside a record decl"' failed.
via llvm-bugs
llvm-bugs at lists.llvm.org
Sat Jun 27 18:26:13 PDT 2020
https://bugs.llvm.org/show_bug.cgi?id=46481
Bug ID: 46481
Summary: Clang crash in clang/lib/AST/DeclBase.cpp:989: bool
clang::Decl::AccessDeclContextSanity() const:
Assertion `Access != AS_none && "Access specifier is
AS_none inside a record decl"' failed.
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangbugs at nondot.org
Reporter: haoxintu at gmail.com
CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
richard-llvm at metafoo.co.uk
This code, bug.cc, reduced by C-Reduce, makes Clang crashed.
$cat bug.cc
struct {~ (enum a : class :
$clang++ bug.cc
bug.cc:1:11: error: expected a class name after '~' to name a destructor
struct {~ (enum a : class :
^
bug.cc:1:21: error: '(anonymous class at bug.cc:1:21)' cannot be defined in a
type specifier
struct {~ (enum a : class :
^
bug.cc:3:1: error: expected class name
^
bug.cc:1:28: error: expected '{' after base class list
struct {~ (enum a : class :
^
bug.cc:1:28: error: expected ';' after class
struct {~ (enum a : class :
^
;
clang-11:
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master-assert/clang/lib/AST/DeclBase.cpp:989:
bool clang::Decl::AccessDeclContextSanity() const: Assertion `Access != AS_none
&& "Access specifier is AS_none inside a record decl"' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments:
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free
-main-file-name bug.cc -mrelocation-model static -mframe-pointer=all
-fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables
-target-cpu x86-64 -dwarf-column-info -fno-split-dwarf-inlining
-debugger-tuning=gdb -resource-dir
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/lib/clang/11.0.0
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/x86_64-linux-gnu/c++/5.4.0
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/x86_64-linux-gnu/c++/5.4.0
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/backward
-internal-isystem /usr/local/include -internal-isystem
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/lib/clang/11.0.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-fdeprecated-macro -fdebug-compilation-dir
/home/haoxin/compilers/new-scg/new-scg-build/map_test/clang-test/creduce
-ferror-limit 19 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions
-fcolor-diagnostics -faddrsig -o /tmp/bug-490d04.o -x c++ bug.cc
1. bug.cc:3:1: current parser token ''
2. bug.cc:1:1: parsing struct/union/class body '(anonymous)'
#0 0x00000000026e32c4 PrintStackTraceSignalHandler(void*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x26e32c4)
#1 0x00000000026e0eae llvm::sys::RunSignalHandlers()
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x26e0eae)
#2 0x00000000026e35e5 SignalHandler(int)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x26e35e5)
#3 0x00007f11cd5fa390 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x00007f11cc164428 raise
/build/glibc-LK5gWL/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
#5 0x00007f11cc16602a abort /build/glibc-LK5gWL/glibc-2.23/stdlib/abort.c:91:0
#6 0x00007f11cc15cbd7 __assert_fail_base
/build/glibc-LK5gWL/glibc-2.23/assert/assert.c:92:0
#7 0x00007f11cc15cc82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82)
#8 0x000000000497f205 clang::Decl::AccessDeclContextSanity() const
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x497f205)
#9 0x0000000003ed6ed9 clang::Sema::SetMemberAccessSpecifier(clang::NamedDecl*,
clang::NamedDecl*, clang::AccessSpecifier)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3ed6ed9)
#10 0x0000000004035d1d clang::Sema::ActOnTag(clang::Scope*, unsigned int,
clang::Sema::TagUseKind, clang::SourceLocation, clang::CXXScopeSpec&,
clang::IdentifierInfo*, clang::SourceLocation, clang::ParsedAttributesView
const&, clang::AccessSpecifier, clang::SourceLocation,
llvm::MutableArrayRef<clang::TemplateParameterList*>, bool&, bool&,
clang::SourceLocation, bool,
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>, bool, bool,
clang::Sema::SkipBodyInfo*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x4035d1d)
#11 0x0000000003df58da clang::Parser::ParseEnumSpecifier(clang::SourceLocation,
clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&,
clang::AccessSpecifier, clang::Parser::DeclSpecContext)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3df58da)
#12 0x0000000003ded00d
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3ded00d)
#13 0x0000000003e00a6f
clang::Parser::ParseParameterDeclarationClause(clang::DeclaratorContext,
clang::ParsedAttributes&,
llvm::SmallVectorImpl<clang::DeclaratorChunk::ParamInfo>&,
clang::SourceLocation&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e00a6f)
#14 0x0000000003dfe981
clang::Parser::ParseFunctionDeclarator(clang::Declarator&,
clang::ParsedAttributes&, clang::BalancedDelimiterTracker&, bool, bool)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dfe981)
#15 0x0000000003dfc801 clang::Parser::ParseDirectDeclarator(clang::Declarator&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dfc801)
#16 0x0000000003dfa826
clang::Parser::ParseDeclaratorInternal(clang::Declarator&, void
(clang::Parser::*)(clang::Declarator&))
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dfa826)
#17 0x0000000003e10199
clang::Parser::ParseCXXMemberDeclaratorBeforeInitializer(clang::Declarator&,
clang::VirtSpecifiers&, clang::ActionResult<clang::Expr*, true>&,
clang::Parser::LateParsedAttrList&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e10199)
#18 0x0000000003e11977
clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier,
clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo const&,
clang::ParsingDeclRAIIObject*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e11977)
#19 0x0000000003e145ab
clang::Parser::ParseCXXClassMemberDeclarationWithPragmas(clang::AccessSpecifier&,
clang::Parser::ParsedAttributesWithRange&, clang::TypeSpecifierType,
clang::Decl*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e145ab)
#20 0x0000000003e0e47d
clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation,
clang::SourceLocation, clang::Parser::ParsedAttributesWithRange&, unsigned int,
clang::Decl*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e0e47d)
#21 0x0000000003e0c94a
clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3e0c94a)
#22 0x0000000003debdc3
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3debdc3)
#23 0x0000000003dd4c9a
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dd4c9a)
#24 0x0000000003dd49c5
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dd49c5)
#25 0x0000000003dd37f3
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dd37f3)
#26 0x0000000003dd183d
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dd183d)
#27 0x0000000003dd1087
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dd1087)
#28 0x0000000003dccb4e clang::ParseAST(clang::Sema&, bool, bool)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x3dccb4e)
#29 0x0000000002ea0873 clang::FrontendAction::Execute()
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x2ea0873)
#30 0x0000000002e3b0c3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x2e3b0c3)
#31 0x0000000002f4a672
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x2f4a672)
#32 0x0000000000956798 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x956798)
#33 0x0000000000954cac ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x954cac)
#34 0x0000000000954958 main
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x954958)
#35 0x00007f11cc14f830 __libc_start_main
/build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:325:0
#36 0x00000000009519a9 _start
(/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin/clang-11+0x9519a9)
clang-11: error: unable to execute command: Aborted (core dumped)
clang-11: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.0.0
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin
clang-11: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-11: note: diagnostic msg: /tmp/bug-a329e2.cpp
clang-11: note: diagnostic msg: /tmp/bug-a329e2.sh
clang-11: note: diagnostic msg:
********************
$clang++ --version
clang version 11.0.0
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/haoxin/corpus-compilers/llvm-trunk/llvm-project-master/build/bin
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