[LLVMbugs] [Bug 17587] New: Assertion failure on class definition with attribute

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17587

            Bug ID: 17587
           Summary: Assertion failure on class definition with attribute
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: rtrieu at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Code:
class [[clang::warn_unused_result]] Status;
//Uncomment to not crash
//class Status {};
class Foo {
 Status Bar();
};

Command line:
clang -std=c++11 unused-result.cc

Assertion:
clang-3.3: llvm/tools/clang/include/clang/AST/DeclCXX.h:569: const
clang::CXXRecordDecl::DefinitionData& clang::CXXRecordDecl::data() const:
Assertion `DefinitionData && "queried property of class with no definition"'
failed.

Backtrace snippet:
#4  0x0000000000435da8 in clang::CXXRecordDecl::data (this=0x45775c0)
    at llvm/tools/clang/include/clang/AST/DeclCXX.h:569
#5  0x0000000000435ea2 in clang::CXXRecordDecl::bases_begin (this=0x45775c0)
    at llvm/tools/clang/include/clang/AST/DeclCXX.h:685
#6  0x00000000017b96cc in clang::CXXMethodDecl::getCorrespondingMethodInClass (
    this=0x45c4f70, RD=0x45775c0, MayBeBase=true)
    at llvm/tools/clang/lib/AST/DeclCXX.cpp:1376
#7  0x00000000005bec9a in clang::CXXMethodDecl::getCorrespondingMethodInClass (
    this=0x45c4f70, RD=0x45775c0, MayBeBase=true)
    at llvm/tools/clang/include/clang/AST/DeclCXX.h:1802
#8  0x000000000149f2fd in clang::Sema::ActOnFunctionDeclarator (
    this=0x45910f0, S=0x4569260, D=..., DC=0x45776e8, TInfo=0x45778b0, 
    Previous=..., TemplateParamLists=..., AddToScope=@0x7fffffff981f: true)
    at llvm/tools/clang/lib/Sema/SemaDecl.cpp:6914
#9  0x00000000014955cc in clang::Sema::HandleDeclarator (this=0x45910f0, 
    S=0x4569260, D=..., TemplateParamLists=...)
    at llvm/tools/clang/lib/Sema/SemaDecl.cpp:4317
#10 0x00000000013fd683 in clang::Sema::ActOnCXXMemberDeclarator (
    this=0x45910f0, S=0x4569260, AS=clang::AS_private, D=..., 
    TemplateParameterLists=..., BW=0x0, VS=..., InitStyle=clang::ICIS_NoInit)
    at llvm/tools/clang/lib/Sema/SemaDeclCXX.cpp:2002
#11 0x00000000010bdd4a in clang::Parser::ParseCXXClassMemberDeclaration (
    this=0x45ac460, AS=clang::AS_private, AccessAttrs=0x0, TemplateInfo=..., 
    TemplateDiags=0x0)
    at llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp:2279
#12 0x00000000010bf49b in clang::Parser::ParseCXXMemberSpecification (
    this=0x45ac460, RecordLoc=..., AttrFixitLoc=..., Attrs=..., TagType=18, 
    TagDecl=0x45776b0)
    at llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp:2655
#13 0x00000000010bbab4 in clang::Parser::ParseClassSpecifier (this=0x45ac460, 
    TagTokKind=clang::tok::kw_class, StartLoc=..., DS=..., TemplateInfo=..., 
    AS=clang::AS_none, EnteringContext=true, DSC=clang::Parser::DSC_top_level, 
    Attributes=...)
    at llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp:1606

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