[llvm-bugs] [Bug 49235] New: Assertion `D.getASTContext().getLangOpts().CPlusPlus` failed

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Feb 17 17:25:35 PST 2021


https://bugs.llvm.org/show_bug.cgi?id=49235

            Bug ID: 49235
           Summary: Assertion `D.getASTContext().getLangOpts().CPlusPlus`
                    failed
           Product: clang
           Version: 11.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zhan3299 at purdue.edu
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

It may be duplicated with https://bugs.llvm.org/show_bug.cgi?id=44758.

$ cat test.c
int main() {
    struct {
        int x __attribute__((aligned(({ a(); }))));
    } x;
}

$ ./clang -c test.c
test.c:3:41: warning: implicit declaration of function 'a' is invalid in C99
[-Wimplicit-function-declaration]
        int x __attribute__((aligned(({ a(); }))));
                                        ^
clang: /home/xxx/data/git/llvm-project/clang/lib/AST/Decl.cpp:2052: bool
isDeclExternC(const T &) [T = clang::FunctionDecl]: Assertion
`D.getASTContext().getLangOpts().CPlusPlus' 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: /data/xxx/git/llvm-project/build/bin/clang -c test.c
1.      test.c:3:41: current parser token 'a'
2.      test.c:1:12: parsing function body 'main'
3.      test.c:1:12: in compound statement ('{}')
4.      test.c:2:5: parsing struct/union body ''
5.      test.c:3:39: in compound statement ('{}')
 #0 0x0000000006e97306 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/xxx/data/git/llvm-project/llvm/lib/Support/Unix/Signals.inc:560:7
 #1 0x0000000006e9266e llvm::sys::RunSignalHandlers()
/home/xxx/data/git/llvm-project/llvm/lib/Support/Signals.cpp:69:18
 #2 0x0000000006e95560 llvm::sys::CleanupOnSignal(unsigned long)
/home/xxx/data/git/llvm-project/llvm/lib/Support/Unix/Signals.inc:361:3
 #3 0x0000000006c878a5 (anonymous
namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long)
/home/xxx/data/git/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:77:5
 #4 0x0000000006c87d20 CrashRecoverySignalHandler(int)
/home/xxx/data/git/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:383:1
 #5 0x00007f9ac4c598a0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x128a0)
 #6 0x00007f9ac391ff47 gsignal
/build/glibc-2ORdQG/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #7 0x00007f9ac39218b1 abort /build/glibc-2ORdQG/glibc-2.27/stdlib/abort.c:81:0
 #8 0x00007f9ac391142a __assert_fail_base
/build/glibc-2ORdQG/glibc-2.27/assert/assert.c:89:0
 #9 0x00007f9ac39114a2 (/lib/x86_64-linux-gnu/libc.so.6+0x304a2)
#10 0x000000000f31cab6
/home/xxx/data/git/llvm-project/clang/lib/AST/Decl.cpp:2052:5
#11 0x000000000cee82c2 bool
isIncompleteDeclExternC<clang::FunctionDecl>(clang::Sema&, clang::FunctionDecl
const*) /home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:6602:13
#12 0x000000000cebca55 clang::Sema::ActOnFunctionDeclarator(clang::Scope*,
clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*,
clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>,
bool&) /home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:9700:7
#13 0x000000000ceaca94 clang::Sema::HandleDeclarator(clang::Scope*,
clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>)
/home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:5868:11
#14 0x000000000ceaa141 clang::Sema::ActOnDeclarator(clang::Scope*,
clang::Declarator&)
/home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:5544:15
#15 0x000000000ce69606
clang::Sema::ImplicitlyDefineFunction(clang::SourceLocation,
clang::IdentifierInfo&, clang::Scope*)
/home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:14661:41
#16 0x000000000ce64a09 clang::Sema::ClassifyName(clang::Scope*,
clang::CXXScopeSpec&, clang::IdentifierInfo*&, clang::SourceLocation,
clang::Token const&, clang::CorrectionCandidateCallback*)
/home/xxx/data/git/llvm-project/clang/lib/Sema/SemaDecl.cpp:929:26
#17 0x000000000c8369ed
clang::Parser::TryAnnotateName(clang::CorrectionCandidateCallback*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:1627:53
#18 0x000000000ca0874b
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:191:11
#19 0x000000000ca081a6
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:106:20
#20 0x000000000ca1c77e clang::Parser::ParseCompoundStatementBody(bool)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:1089:11
#21 0x000000000ca1a464 clang::Parser::ParseScope::~ParseScope()
/home/xxx/data/git/llvm-project/clang/include/clang/Parse/Parser.h:0:0
#22 0x000000000ca1a464 clang::Parser::ParseCompoundStatement(bool, unsigned
int) /home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:904:0
#23 0x000000000c91556d
clang::Parser::ParseParenExpression(clang::Parser::ParenParseOption&, bool,
bool, clang::OpaquePtr<clang::QualType>&, clang::SourceLocation&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseExpr.cpp:2872:16
#24 0x000000000c90fc2e
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&,
clang::Parser::TypeCastState, bool, bool*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseExpr.cpp:957:11
#25 0x000000000c902c60
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool,
clang::Parser::TypeCastState, bool, bool*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseExpr.cpp:681:20
#26 0x000000000c8fe5ef
clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseExpr.cpp:176:10
#27 0x000000000c8627aa
_ZN4llvm12function_refIFN5clang12ActionResultIPNS1_4ExprELb1EEES4_EEC2IZNS1_4Sema25CorrectDelayedTyposInExprES5_PNS1_7VarDeclEbS7_Ed_UlS4_E_EEOT_PNSt9enable_ifIXntsr3std7is_sameINSt9remove_cvINSt16remove_referenceISD_E4typeEE4typeES7_EE5valueEvE4typeE
/home/xxx/data/git/llvm-project/llvm/include/llvm/ADT/STLExtras.h:0:0
#28 0x000000000c8627aa
clang::Parser::ParseAttributeArgsCommon(clang::IdentifierInfo*,
clang::SourceLocation, clang::ParsedAttributes&, clang::SourceLocation*,
clang::IdentifierInfo*, clang::SourceLocation,
clang::AttributeCommonInfo::Syntax)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:397:0
#29 0x000000000c86049b
clang::Parser::ParseGNUAttributeArgs(clang::IdentifierInfo*,
clang::SourceLocation, clang::ParsedAttributes&, clang::SourceLocation*,
clang::IdentifierInfo*, clang::SourceLocation,
clang::AttributeCommonInfo::Syntax, clang::Declarator*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:480:3
#30 0x000000000c85ed4a
clang::Parser::ParseGNUAttributes(clang::ParsedAttributes&,
clang::SourceLocation*, clang::Parser::LateParsedAttrList*, clang::Declarator*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:189:9
#31 0x000000000c84163e
clang::Parser::MaybeParseGNUAttributes(clang::Declarator&,
clang::Parser::LateParsedAttrList*)
/home/xxx/data/git/llvm-project/clang/include/clang/Parse/Parser.h:2650:31
#32 0x000000000c89229a llvm::function_ref<void
(clang::ParsingFieldDeclarator&)>::operator()(clang::ParsingFieldDeclarator&)
const /home/xxx/data/git/llvm-project/llvm/include/llvm/ADT/STLExtras.h:0:0
#33 0x000000000c89229a
clang::Parser::ParseStructDeclaration(clang::ParsingDeclSpec&,
llvm::function_ref<void (clang::ParsingFieldDeclarator&)>)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:4088:0
#34 0x000000000c89354a clang::ParsingDeclSpec::~ParsingDeclSpec()
/home/xxx/data/git/llvm-project/clang/include/clang/Parse/RAIIObjectsForParser.h:0:0
#35 0x000000000c89354a
clang::Parser::ParseStructUnionBody(clang::SourceLocation,
clang::TypeSpecifierType, clang::RecordDecl*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:4179:0
#36 0x000000000c8d1a67
clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:1969:20
#37 0x000000000c8744f9 clang::ParsedAttributesView::empty() const
/home/xxx/data/git/llvm-project/clang/include/clang/Sema/ParsedAttr.h:0:0
#38 0x000000000c8744f9
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:3839:0
#39 0x000000000c8735e7
clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, bool,
clang::Parser::ForRangeInit*, clang::SourceLocation*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:1675:10
#40 0x000000000c873179
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&,
clang::SourceLocation*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:12
#41 0x000000000ca08d41
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:0:13
#42 0x000000000ca081a6
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:106:20
#43 0x000000000ca1c77e clang::Parser::ParseCompoundStatementBody(bool)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:1089:11
#44 0x000000000ca1f748 clang::ActionResult<clang::Stmt*, true>::isInvalid()
const /home/xxx/data/git/llvm-project/clang/include/clang/Sema/Ownership.h:0:0
#45 0x000000000ca1f748 clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseStmt.cpp:2240:0
#46 0x000000000c833117
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:1339:10
#47 0x000000000c88224e clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseDecl.cpp:1926:18
#48 0x000000000c83020d
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:0:10
#49 0x000000000c82e939
clang::Parser::ObjCDeclContextSwitch::~ObjCDeclContextSwitch()
/home/xxx/data/git/llvm-project/clang/include/clang/Parse/Parser.h:0:0
#50 0x000000000c82e939
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:1116:0
#51 0x000000000c82c6a1
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:935:12
#52 0x000000000c827ecc
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:683:10
#53 0x000000000c826ccc
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
/home/xxx/data/git/llvm-project/clang/lib/Parse/Parser.cpp:555:26
#54 0x000000000c81cf4a clang::ParseAST(clang::Sema&, bool, bool)
/home/xxx/data/git/llvm-project/clang/lib/Parse/ParseAST.cpp:157:15
#55 0x000000000861c2a2 clang::ASTFrontendAction::ExecuteAction()
/home/xxx/data/git/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1059:1
#56 0x00000000099decd8 clang::CodeGenAction::ExecuteAction()
/home/xxx/data/git/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:1184:28
#57 0x000000000861a51a clang::FrontendAction::Execute()
/home/xxx/data/git/llvm-project/clang/lib/Frontend/FrontendAction.cpp:954:10
#58 0x000000000854eaa7 llvm::Error::operator bool()
/home/xxx/data/git/llvm-project/llvm/include/llvm/Support/Error.h:0:0
#59 0x000000000854eaa7
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/home/xxx/data/git/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:984:0
#60 0x00000000088f183f clang::CompilerInstance::getFrontendOpts()
/home/xxx/data/git/llvm-project/clang/include/clang/Frontend/CompilerInstance.h:0:0
#61 0x00000000088f183f
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/home/xxx/data/git/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:279:0
#62 0x0000000000b094cc llvm::TimeTraceScope::~TimeTraceScope()
/home/xxx/data/git/llvm-project/llvm/include/llvm/Support/TimeProfiler.h:0:0
#63 0x0000000000b094cc cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) /home/xxx/data/git/llvm-project/clang/tools/driver/cc1_main.cpp:241:0
#64 0x0000000000afaf3b ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
/home/xxx/data/git/llvm-project/clang/tools/driver/driver.cpp:330:12
#65 0x00000000082c1350
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const::$_1::operator()() const
/home/xxx/data/git/llvm-project/clang/lib/Driver/Job.cpp:400:30
#66 0x00000000082c1350 void llvm::function_ref<void
()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const::$_1>(long)
/home/xxx/data/git/llvm-project/llvm/include/llvm/ADT/STLExtras.h:185:0
#67 0x0000000006c8767d
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
/home/xxx/data/git/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:420:1
#68 0x00000000082bfbe7
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const
/home/xxx/data/git/llvm-project/clang/lib/Driver/Job.cpp:400:12
#69 0x000000000822acca std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::empty() const
/usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/basic_string.h:0:0
#70 0x000000000822acca
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
/home/xxx/data/git/llvm-project/clang/lib/Driver/Compilation.cpp:196:0
#71 0x000000000822b754
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
/home/xxx/data/git/llvm-project/clang/lib/Driver/Compilation.cpp:246:19
#72 0x0000000008266f77 llvm::SmallVectorBase<unsigned int>::empty() const
/home/xxx/data/git/llvm-project/llvm/include/llvm/ADT/SmallVector.h:0:0
#73 0x0000000008266f77
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
/home/xxx/data/git/llvm-project/clang/lib/Driver/Driver.cpp:1509:0
#74 0x0000000000af95ae main
/home/xxx/data/git/llvm-project/clang/tools/driver/driver.cpp:502:21
#75 0x00007f9ac3902b97 __libc_start_main
/build/glibc-2ORdQG/glibc-2.27/csu/../csu/libc-start.c:344:0
#76 0x0000000000af38ea _start
(/data/xxx/git/llvm-project/build/bin/clang+0xaf38ea)
clang-11: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.1.0 (https://github.com/llvm/llvm-project.git
1fdec59bffc11ae37eb51a1b9869f0696bfd5312)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /data/xxx/git/llvm-project/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/test-397fa0.c
clang-11: note: diagnostic msg: /tmp/test-397fa0.sh
clang-11: note: diagnostic msg:

********************

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