[llvm-bugs] [Bug 46570] New: Clang crash in clang/lib/Sema/SemaTemplate.cpp:392 Assertion `SS.isEmpty() && "ObjectType and scope specifier cannot coexist"' failed
via llvm-bugs
llvm-bugs at lists.llvm.org
Thu Jul 2 19:32:07 PDT 2020
https://bugs.llvm.org/show_bug.cgi?id=46570
Bug ID: 46570
Summary: Clang crash in clang/lib/Sema/SemaTemplate.cpp:392
Assertion `SS.isEmpty() && "ObjectType and scope
specifier cannot coexist"' failed
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Keywords: crash-on-invalid
Severity: normal
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
Hi, there.
This case, bug.cc, reduced by C-Reduce, makes clang-trunk crashed.
Noted that clang can not emit any error messages about this case.
$cat bug.cc
short g_volatile_ushort;
namespace a {
int b = l_volatile_uwchar.a ::c ::~d<>
}
$clang++ bug.cc
clang-11:
/home/haoxin/compilers/llvm-project/clang/lib/Sema/SemaTemplate.cpp:392: bool
clang::Sema::LookupTemplateName(clang::LookupResult &, clang::Scope *,
clang::CXXScopeSpec &, clang::QualType, bool, bool &,
clang::Sema::RequiredTemplateKind, clang::Sema::AssumedTemplateKind *, bool):
Assertion `SS.isEmpty() && "ObjectType and scope specifier cannot coexist"'
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/compilers/llvm-project/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/compilers/llvm-project/build/lib/clang/11.0.0 -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward
-internal-isystem /usr/local/include -internal-isystem
/home/haoxin/compilers/llvm-project/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/bitbucket/scg-backup-bitbucket/ice-test/0703-test/4/test_0/clang-creduce
-ferror-limit 19 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions
-fcolor-diagnostics -faddrsig -o /tmp/bug-39a191.o -x c++ bug.cc
1. bug.cc:4:1: current parser token '}'
2. bug.cc:2:1: parsing namespace 'a'
#0 0x00000000026f36c4 PrintStackTraceSignalHandler(void*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f36c4)
#1 0x00000000026f12be llvm::sys::RunSignalHandlers()
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f12be)
#2 0x00000000026f39e5 SignalHandler(int)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f39e5)
#3 0x00007ff73fb2c890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x00007ff73e58ae97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007ff73e58c801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007ff73e57c39a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#7 0x00007ff73e57c412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#8 0x00000000044fb7e1 clang::Sema::LookupTemplateName(clang::LookupResult&,
clang::Scope*, clang::CXXScopeSpec&, clang::QualType, bool, bool&,
clang::Sema::RequiredTemplateKind, clang::Sema::AssumedTemplateKind*, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x44fb7e1)
#9 0x00000000044f9a73 clang::Sema::isTemplateName(clang::Scope*,
clang::CXXScopeSpec&, bool, clang::UnqualifiedId const&,
clang::OpaquePtr<clang::QualType>, bool,
clang::OpaquePtr<clang::TemplateName>&, bool&, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x44f9a73)
#10 0x0000000004518b41 clang::Sema::ActOnTemplateName(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation, clang::UnqualifiedId const&,
clang::OpaquePtr<clang::QualType>, bool,
clang::OpaquePtr<clang::TemplateName>&, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x4518b41)
#11 0x00000000042b9bbe clang::TreeTransform<(anonymous
namespace)::TransformTypos>::TransformTSIInObjectScope(clang::TypeLoc,
clang::QualType, clang::NamedDecl*, clang::CXXScopeSpec&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x42b9bbe)
#12 0x00000000042a5c5f clang::TreeTransform<(anonymous
namespace)::TransformTypos>::TransformCXXPseudoDestructorExpr(clang::CXXPseudoDestructorExpr*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x42a5c5f)
#13 0x000000000429e659 (anonymous
namespace)::TransformTypos::RecursiveTransformLoop(clang::Expr*, bool&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x429e659)
#14 0x0000000004279a62 clang::Sema::CorrectDelayedTyposInExpr(clang::Expr*,
clang::VarDecl*, bool, llvm::function_ref<clang::ActionResult<clang::Expr*,
true> (clang::Expr*)>)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x4279a62)
#15 0x000000000403a40e clang::Sema::AddInitializerToDecl(clang::Decl*,
clang::Expr*, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x403a40e)
#16 0x0000000003e0d614
clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e0d614)
#17 0x0000000003e0b034 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e0b034)
#18 0x0000000003def8fc
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3def8fc)
#19 0x0000000003def395
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3def395)
#20 0x0000000003dee1bf
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3dee1bf)
#21 0x0000000003e1f92b
clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo,
4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&,
clang::BalancedDelimiterTracker&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e1f92b)
#22 0x0000000003e1f258 clang::Parser::ParseNamespace(clang::DeclaratorContext,
clang::SourceLocation&, clang::SourceLocation)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e1f258)
#23 0x0000000003e05d67
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&,
clang::SourceLocation*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e05d67)
#24 0x0000000003ded86a
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3ded86a)
#25 0x0000000003dec28d
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3dec28d)
#26 0x0000000003de770d clang::ParseAST(clang::Sema&, bool, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3de770d)
#27 0x0000000002ebc3f3 clang::FrontendAction::Execute()
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2ebc3f3)
#28 0x0000000002e539c3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2e539c3)
#29 0x0000000002f67532
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2f67532)
#30 0x000000000095d060 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95d060)
#31 0x000000000095b12c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95b12c)
#32 0x000000000095addf main
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95addf)
#33 0x00007ff73e56db97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#34 0x0000000000957eba _start
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x957eba)
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 (https://github.com/llvm/llvm-project
b9306fd042ce1c11d84f05d2124dfdc65b8331fe)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/haoxin/compilers/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/bug-7c4a71.cpp
clang-11: note: diagnostic msg: /tmp/bug-7c4a71.sh
clang-11: note: diagnostic msg:
********************
$clang++ -v
clang version 11.0.0 (https://github.com/llvm/llvm-project
b9306fd042ce1c11d84f05d2124dfdc65b8331fe)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/haoxin/compilers/llvm-project/build/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Selected multilib: .;@m64
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