[llvm-bugs] [Bug 47202] New: ICE on unsupported TypeLoc kind in declarator

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Aug 17 04:04:40 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=47202

            Bug ID: 47202
           Summary: ICE on unsupported TypeLoc kind in declarator
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: tangyixuan at mail.dlut.edu.cn
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

The following valid code triggers an ICE for clang 10, while g++ compiles
sucessfully:

$:cat s.cpp

template<typename T> struct A
{
  int a[sizeof(T)] __attribute((vector_size(2)));
};

$:clang++ a -c s.cpp

unsupported TypeLoc kind in declarator!
UNREACHABLE executed at
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaType.cpp:5716!
Stack dump:
0.      Program arguments: /usr/local/bin/clang-9 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
34913.C -mrelocation-model static -mthread-model posix -mframe-pointer=all
-fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
-fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb
-resource-dir /usr/local/lib/clang/10.0.0 -internal-isystem
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../include/c++/9.2.0
-internal-isystem
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../include/c++/9.2.0/x86_64-pc-linux-gnu
-internal-isystem
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../include/c++/9.2.0/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/local/lib/clang/10.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -std=c++11 -fdeprecated-macro
-fdebug-compilation-dir /media/oscar/xuaner1/c++bugreprot/TEST-CRASH
-ferror-limit 19 -fmessage-length 0 -fgnuc-version=4.2.1 -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics
-faddrsig -o 34913.o -x c++ 34913.C 
1.      34913.C:15:49: current parser token ';'
2.      34913.C:13:22: parsing struct/union/class body 'A'
 #0 0x0000556afa4d705f llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/oscar/compiler/llvm-project/llvm/lib/Support/Unix/Signals.inc:544:0
 #1 0x0000556afa4d70f2 PrintStackTraceSignalHandler(void*)
/home/oscar/compiler/llvm-project/llvm/lib/Support/Unix/Signals.inc:605:0
 #2 0x0000556afa4d4f55 llvm::sys::RunSignalHandlers()
/home/oscar/compiler/llvm-project/llvm/lib/Support/Signals.cpp:68:0
 #3 0x0000556afa4d69ea SignalHandler(int)
/home/oscar/compiler/llvm-project/llvm/lib/Support/Unix/Signals.inc:391:0
 #4 0x00007f9b403e58a0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x128a0)
 #5 0x00007f9b3f4ddf47 raise (/lib/x86_64-linux-gnu/libc.so.6+0x3ef47)
 #6 0x00007f9b3f4df8b1 abort (/lib/x86_64-linux-gnu/libc.so.6+0x408b1)
 #7 0x0000556afa4172a8 bindingsErrorHandler(void*,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, bool)
/home/oscar/compiler/llvm-project/llvm/lib/Support/ErrorHandling.cpp:218:0
 #8 0x0000556afdad3207 fillAtomicQualLoc(clang::AtomicTypeLoc,
clang::DeclaratorChunk const&)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaType.cpp:5721:0
 #9 0x0000556afdae0665 clang::TypeLocVisitor<(anonymous
namespace)::DeclaratorLocFiller,
void>::VisitDependentVectorTypeLoc(clang::DependentVectorTypeLoc)
/home/oscar/compiler/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:39:0
#10 0x0000556afdadec1b clang::TypeLocVisitor<(anonymous
namespace)::DeclaratorLocFiller, void>::Visit(clang::UnqualTypeLoc)
/home/oscar/compiler/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:39:0
#11 0x0000556afdad37c7 GetTypeSourceInfoForDeclarator((anonymous
namespace)::TypeProcessingState&, clang::QualType, clang::TypeSourceInfo*)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaType.cpp:5814:0
#12 0x0000556afdad1098 GetFullTypeForDeclarator((anonymous
namespace)::TypeProcessingState&, clang::QualType, clang::TypeSourceInfo*)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaType.cpp:5278:0
#13 0x0000556afdad11a9 clang::Sema::GetTypeForDeclarator(clang::Declarator&,
clang::Scope*)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaType.cpp:5296:0
#14 0x0000556afd13832c clang::Sema::HandleField(clang::Scope*,
clang::RecordDecl*, clang::SourceLocation, clang::Declarator&, clang::Expr*,
clang::InClassInitStyle, clang::AccessSpecifier)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaDecl.cpp:15909:0
#15 0x0000556afd310c6d clang::Sema::ActOnCXXMemberDeclarator(clang::Scope*,
clang::AccessSpecifier, clang::Declarator&,
llvm::MutableArrayRef<clang::TemplateParameterList*>, clang::Expr*,
clang::VirtSpecifiers const&, clang::InClassInitStyle)
/home/oscar/compiler/llvm-project/clang/lib/Sema/SemaDeclCXX.cpp:3340:0
#16 0x0000556afced6689
clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier,
clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo const&,
clang::ParsingDeclRAIIObject*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:2806:0
#17 0x0000556afced7dec
clang::Parser::ParseCXXClassMemberDeclarationWithPragmas(clang::AccessSpecifier&,
clang::Parser::ParsedAttributesWithRange&, clang::TypeSpecifierType,
clang::Decl*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:3146:0
#18 0x0000556afced89b9
clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation,
clang::SourceLocation, clang::Parser::ParsedAttributesWithRange&, unsigned int,
clang::Decl*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:3323:0
#19 0x0000556afced3088
clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:1956:0
#20 0x0000556afceb5360
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDecl.cpp:3854:0
#21 0x0000556afcf62ba6
clang::Parser::ParseSingleDeclarationAfterTemplate(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&,
clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseTemplate.cpp:216:0
#22 0x0000556afcf627d6
clang::Parser::ParseTemplateDeclarationOrSpecialization(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseTemplate.cpp:163:0
#23 0x0000556afcf62243
clang::Parser::ParseDeclarationStartingWithTemplate(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseTemplate.cpp:36:0
#24 0x0000556afcead544
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&,
clang::SourceLocation*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseDecl.cpp:1758:0
#25 0x0000556afce8f6e7
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
/home/oscar/compiler/llvm-project/clang/lib/Parse/Parser.cpp:864:0
#26 0x0000556afce8ed5c
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
/home/oscar/compiler/llvm-project/clang/lib/Parse/Parser.cpp:682:0
#27 0x0000556afce8e7f7
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
/home/oscar/compiler/llvm-project/clang/lib/Parse/Parser.cpp:560:0
#28 0x0000556afce8aade clang::ParseAST(clang::Sema&, bool, bool)
/home/oscar/compiler/llvm-project/clang/lib/Parse/ParseAST.cpp:157:0
#29 0x0000556afaf5a33b clang::ASTFrontendAction::ExecuteAction()
/home/oscar/compiler/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1042:0
#30 0x0000556afb803be2 clang::CodeGenAction::ExecuteAction()
/home/oscar/compiler/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:1089:0
#31 0x0000556afaf59c9c clang::FrontendAction::Execute()
/home/oscar/compiler/llvm-project/clang/lib/Frontend/FrontendAction.cpp:939:0
#32 0x0000556afaef1f17
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/home/oscar/compiler/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:956:0
#33 0x0000556afb0c1a9b
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/home/oscar/compiler/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:290:0
#34 0x0000556af7bae0bf cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) /home/oscar/compiler/llvm-project/clang/tools/driver/cc1_main.cpp:250:0
#35 0x0000556af7ba3613 ExecuteCC1Tool(llvm::ArrayRef<char const*>,
llvm::StringRef)
/home/oscar/compiler/llvm-project/clang/tools/driver/driver.cpp:309:0
#36 0x0000556af7ba3d09 main
/home/oscar/compiler/llvm-project/clang/tools/driver/driver.cpp:382:0
#37 0x00007f9b3f4c0b97 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x21b97)
#38 0x0000556af7ba1dea _start (/usr/local/bin/clang-9+0x2b39dea)
clang-9: error: unable to execute command: Aborted (core dumped)
clang-9: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 10.0.0 (https://github.com/llvm/llvm-project.git
722b61892454b3217d73ec486e52156c5a92b5b3)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
clang-9: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang-9: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-9: note: diagnostic msg: /tmp/34913-718d74.cpp
clang-9: note: diagnostic msg: /tmp/34913-718d74.sh
clang-9: note: diagnostic msg: 

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

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