https://llvm.org/bugs/show_bug.cgi?id=25029
Bug ID: 25029
Summary: Regression: Assert static
clang::DependentScopeDeclRefExpr*
clang::DependentScopeDeclRefExpr::Create(const
clang::ASTContext&, clang::NestedNameSpecifierLoc,
clang::SourceLocation, const
clang::DeclarationNameInfo&, const
clang::TemplateArgumentListInfo*)
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: unassignedclangb...@nondot.org
Reporter: andrey....@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
The following code works as expected in 3.6 but ICEs with assertion failure in
3.8:
// begin bbc6.cc
struct A {
template <class T>
static T f(T)
{ return T(); }
};
template <class T>
struct C {
decltype(operator T (A::f(T))) t;
int f();
};
// end bbc6.cc
Expected output (Clang 3.6):
/tmp/bbc6.cc:8:28: error: 'T' does not refer to a value
decltype(operator T (A::f(T))) t;
^
/tmp/bbc6.cc:6:17: note: declared here
template <class T>
^
1 error generated.
Actual output (Clang 3.8):
x86_64-pc-linux-gnu-clang-3.8:
/var/tmp/portage/sys-devel/llvm-9999/work/llvm-9999/tools/clang/lib/AST/ExprCXX.cpp:451:
static clang::DependentScopeDeclRefExpr*
clang::DependentScopeDeclRefExpr::Create(const clang::ASTContext&,
clang::NestedNameSpecifierLoc, clang::SourceLocation, const
clang::DeclarationNameInfo&, const clang::TemplateArgumentListInfo*): Assertion
`QualifierLoc && "should be created for dependent qualifiers"' failed.
#0 0x7fab789ec0f7 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/bin/../lib64/libLLVMSupport.so.3.8+0xcb0f7)
#1 0x7fab789eb0b6 llvm::sys::RunSignalHandlers()
(/usr/bin/../lib64/libLLVMSupport.so.3.8+0xca0b6)
#2 0x7fab789eb52f SignalHandler(int)
(/usr/bin/../lib64/libLLVMSupport.so.3.8+0xca52f)
#3 0x7fab76746440 __restore_rt (/lib64/libc.so.6+0x33440)
#4 0x7fab767463c7 __GI_raise (/lib64/libc.so.6+0x333c7)
#5 0x7fab7674775a __GI_abort (/lib64/libc.so.6+0x3475a)
#6 0x7fab7673f3ad __assert_fail_base (/lib64/libc.so.6+0x2c3ad)
#7 0x7fab7673f462 (/lib64/libc.so.6+0x2c462)
#8 0x7fab73a10fa5 (/usr/bin/../lib64/../lib64/libclangAST.so.3.8+0x1fcfa5)
#9 0x7fab726f7e65 clang::Sema::BuildDependentDeclRefExpr(clang::CXXScopeSpec
const&, clang::SourceLocation, clang::DeclarationNameInfo const&,
clang::TemplateArgumentListInfo const*)
(/usr/bin/../lib64/../lib64/libclangSema.so.3.8+0x42ae65)
#10 0x7fab726f7ee5 clang::Sema::ActOnDependentIdExpression(clang::CXXScopeSpec
const&, clang::SourceLocation, clang::DeclarationNameInfo const&, bool,
clang::TemplateArgumentListInfo const*)
(/usr/bin/../lib64/../lib64/libclangSema.so.3.8+0x42aee5)
#11 0x7fab72566b06 clang::Sema::ActOnIdExpression(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation, clang::UnqualifiedId&, bool, bool,
std::unique_ptr<clang::CorrectionCandidateCallback,
std::default_delete<clang::CorrectionCandidateCallback> >, bool, clang::Token*)
(/usr/bin/../lib64/../lib64/libclangSema.so.3.8+0x299b06)
#12 0x7fab72c84dd5 clang::Parser::tryParseCXXIdExpression(clang::CXXScopeSpec&,
bool, clang::Token&) (/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x78dd5)
#13 0x7fab72c84f10 clang::Parser::ParseCXXIdExpression(bool)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x78f10)
#14 0x7fab72c6f0b7 clang::Parser::ParseCastExpression(bool, bool, bool&,
clang::Parser::TypeCastState)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x630b7)
#15 0x7fab72c7199d clang::Parser::ParseCastExpression(bool, bool,
clang::Parser::TypeCastState)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x6599d)
#16 0x7fab72c71a2f
clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x65a2f)
#17 0x7fab72c71aa9 clang::Parser::ParseExpression(clang::Parser::TypeCastState)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x65aa9)
#18 0x7fab72c5d7b3 clang::Parser::ParseDecltypeSpecifier(clang::DeclSpec&)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x517b3)
#19 0x7fab72c8394f
clang::Parser::ParseOptionalCXXScopeSpecifier(clang::CXXScopeSpec&,
clang::OpaquePtr<clang::QualType>, bool, bool*, bool, clang::IdentifierInfo**)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x7794f)
#20 0x7fab72cc70aa clang::Parser::TryAnnotateCXXScopeToken(bool)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xbb0aa)
#21 0x7fab72c50e6b clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x44e6b)
#22 0x7fab72c65710
clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier,
clang::AttributeList*, clang::Parser::ParsedTemplateInfo const&,
clang::ParsingDeclRAIIObject*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x59710)
#23 0x7fab72c679ed
clang::Parser::ParseCXXClassMemberDeclarationWithPragmas(clang::AccessSpecifier&,
clang::Parser::ParsedAttributesWithRange&, clang::TypeSpecifierType,
clang::Decl*) (/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x5b9ed)
#24 0x7fab72c69d20
clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation,
clang::SourceLocation, clang::Parser::ParsedAttributesWithRange&, unsigned int,
clang::Decl*) (/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x5dd20)
#25 0x7fab72c6b033 clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x5f033)
#26 0x7fab72c50718 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x44718)
#27 0x7fab72cbd625 clang::Parser::ParseSingleDeclarationAfterTemplate(unsigned
int, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&,
clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xb1625)
#28 0x7fab72cbf236
clang::Parser::ParseTemplateDeclarationOrSpecialization(unsigned int,
clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xb3236)
#29 0x7fab72cbf611 clang::Parser::ParseDeclarationStartingWithTemplate(unsigned
int, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xb3611)
#30 0x7fab72c5a2ac clang::Parser::ParseDeclaration(unsigned int,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x4e2ac)
#31 0x7fab72ccc2d0
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xc02d0)
#32 0x7fab72cccb12
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0xc0b12)
#33 0x7fab72c3707b clang::ParseAST(clang::Sema&, bool, bool)
(/usr/bin/../lib64/../lib64/libclangParse.so.3.8+0x2b07b)
#34 0x7fab77acbf28 clang::CodeGenAction::ExecuteAction()
(/usr/bin/../lib64/libclangCodeGen.so.3.8+0x20cf28)
#35 0x7fab773001f6 clang::FrontendAction::Execute()
(/usr/bin/../lib64/libclangFrontend.so.3.8+0xb01f6)
#36 0x7fab772cfcb9
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/bin/../lib64/libclangFrontend.so.3.8+0x7fcb9)
#37 0x7fab7704cbe4 clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/bin/../lib64/libclangFrontendTool.so.3.8+0x2be4)
#38 0x40ff48 cc1_main(llvm::ArrayRef<char const*>, char const*, void*)
(/usr/bin/x86_64-pc-linux-gnu-clang-3.8+0x40ff48)
#39 0x40a72b main (/usr/bin/x86_64-pc-linux-gnu-clang-3.8+0x40a72b)
#40 0x7fab767337b0 __libc_start_main (/lib64/libc.so.6+0x207b0)
#41 0x40c859 _start (/usr/bin/x86_64-pc-linux-gnu-clang-3.8+0x40c859)
Stack dump:
0. Program arguments: /usr/bin/x86_64-pc-linux-gnu-clang-3.8 -cc1 -triple
x86_64-pc-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name bbc6.cc
-mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu x86-64 -dwarf-column-info -coverage-file /tmp/bbc6.cc -resource-dir
/usr/bin/../lib/clang/3.8.0 -internal-isystem
/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5 -internal-isystem
/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5/x86_64-pc-linux-gnu
-internal-isystem
/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/bin/../lib/clang/3.8.0/include -internal-externc-isystem /include
-internal-externc-isystem /usr/include -std=c++11 -fdeprecated-macro
-fdebug-compilation-dir /tmp -ferror-limit 19 -fmessage-length 139
-fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option
-fcolor-diagnostics -o bbc6.o -x c++ /tmp/bbc6.cc
1. /tmp/bbc6.cc:8:22: current parser token '('
2. /tmp/bbc6.cc:7:1: parsing struct/union/class body 'C'
x86_64-pc-linux-gnu-clang-3.8: error: unable to execute command: Aborted
x86_64-pc-linux-gnu-clang-3.8: error: clang frontend command failed due to
signal (use -v to see invocation)
clang version 3.8.0 (757da432107d7c06a337f0984acf60d4bccec08d)
(7df74560640c58b524620fc11eb740cac685ba13)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
x86_64-pc-linux-gnu-clang-3.8: note: diagnostic msg: PLEASE submit a bug report
to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source,
and associated run script.
x86_64-pc-linux-gnu-clang-3.8: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
x86_64-pc-linux-gnu-clang-3.8: note: diagnostic msg: /tmp/bbc6-b15335.cpp
x86_64-pc-linux-gnu-clang-3.8: note: diagnostic msg: /tmp/bbc6-b15335.sh
x86_64-pc-linux-gnu-clang-3.8: note: diagnostic msg:
clang++ -v:
clang version 3.8.0 (757da432107d7c06a337f0984acf60d4bccec08d)
(7df74560640c58b524620fc11eb740cac685ba13)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0
// begin bbc6-b15335.sh
# Crash reproducer for clang version 3.8.0
(757da432107d7c06a337f0984acf60d4bccec08d)
(7df74560640c58b524620fc11eb740cac685ba13)
# Driver args: "--driver-mode=g++" "-c" "-std=c++11" "/tmp/bbc6.cc"
# Original command: "/usr/bin/x86_64-pc-linux-gnu-clang-3.8" "-cc1" "-triple"
"x86_64-pc-linux-gnu" "-emit-obj" "-mrelax-all" "-disable-free"
"-main-file-name" "bbc6.cc" "-mrelocation-model" "static" "-mthread-model"
"posix" "-mdisable-fp-elim" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-munwind-tables" "-fuse-init-array" "-target-cpu"
"x86-64" "-dwarf-column-info" "-coverage-file" "/tmp/bbc6.cc" "-resource-dir"
"/usr/bin/../lib/clang/3.8.0" "-internal-isystem"
"/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5" "-internal-isystem"
"/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5/x86_64-pc-linux-gnu"
"-internal-isystem"
"/usr/lib/gcc/x86_64-pc-linux-gnu/5.2.0/include/g++-v5/backward"
"-internal-isystem" "/usr/local/include" "-internal-isystem"
"/usr/bin/../lib/clang/3.8.0/include" "-internal-externc-isystem" "/include"
"-internal-externc-isystem" "/usr/include" "-std=c++11" "-fdeprecated-macro"
"-fdebug-compilation-dir" "/tmp" "-ferror-limit" "19" "-fmessage-length" "139"
"-fobjc-runtime=gcc" "-fcxx-exceptions" "-fexceptions"
"-fdiagnostics-show-option" "-fcolor-diagnostics" "-o" "bbc6.o" "-x" "c++"
"/tmp/bbc6.cc"
"/usr/bin/x86_64-pc-linux-gnu-clang-3.8" "-cc1" "-triple"
"x86_64-pc-linux-gnu" "-emit-obj" "-mrelax-all" "-disable-free"
"-main-file-name" "bbc6.cc" "-mrelocation-model" "static" "-mthread-model"
"posix" "-mdisable-fp-elim" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-munwind-tables" "-fuse-init-array" "-target-cpu"
"x86-64" "-dwarf-column-info" "-std=c++11" "-fdeprecated-macro" "-ferror-limit"
"19" "-fmessage-length" "139" "-fobjc-runtime=gcc" "-fcxx-exceptions"
"-fexceptions" "-fdiagnostics-show-option" "-fcolor-diagnostics" "-x" "c++"
"bbc6-b15335.cpp"
// end bbc6-b15335.sh
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