<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - isa<FunctionDecl>(nullptr) called inside Sema::FinalizeDeclaration on invalid"
href="http://llvm.org/bugs/show_bug.cgi?id=20564">20564</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>isa<FunctionDecl>(nullptr) called inside Sema::FinalizeDeclaration on invalid
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nlewycky@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Testcase:
struct {
static ::_S_destroy {
Crash:
nlewycky@ducttape:~/creduce$
/usr/local/google/home/nlewycky/llvm/Debug+Asserts/bin/clang -cc1 -std=gnu++11
-w -x c++ x.best
x.best:2:12: error: non-friend class member '_S_destroy' cannot have a
qualified name
static ::_S_destroy {
~~^
x.best:2:12: error: C++ requires a type specifier for all declarations
static ::_S_destroy {
~~~~~~ ^
x.best:2:12: error: no member named '_S_destroy' in the global namespace
static ::_S_destroy {
~~^
x.best:2:24: error: expected expression
static ::_S_destroy {
^
x.best:2:24: error: expected '}'
x.best:2:23: note: to match this '{'
static ::_S_destroy {
^
clang: /usr/local/google/home/nlewycky/llvm/include/llvm/Support/Casting.h:95:
static bool llvm::isa_impl_cl<To, const From*>::doit(const From*) [with To =
clang::FunctionDecl; From = clang::DeclContext]: Assertion `Val && "isa<> used
on a null pointer"' failed.
0 clang 0x0000000003d33395 llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1 clang 0x0000000003d33612
2 clang 0x0000000003d32f9d
3 libpthread.so.0 0x00007f7b97309cb0
4 libc.so.6 0x00007f7b966414f5 gsignal + 53
5 libc.so.6 0x00007f7b96644c5b abort + 379
6 libc.so.6 0x00007f7b9663a1be
7 libc.so.6 0x00007f7b9663a262
8 clang 0x000000000117a92b
9 clang 0x0000000001155a7c
10 clang 0x00000000016e437d
11 clang 0x00000000016e029f
12 clang 0x00000000016df382
13 clang 0x0000000001799d2d
clang::Sema::FinalizeDeclaration(clang::Decl*) + 175
14 clang 0x000000000165a001
clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier,
clang::AttributeList*, clang::Parser::ParsedTemplateInfo const&,
clang::ParsingDeclRAIIObject*) + 5783
15 clang 0x000000000165b3dd
clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation,
clang::SourceLocation, clang::Parser::ParsedAttributesWithRange&, unsigned int,
clang::Decl*) + 3205
16 clang 0x00000000016578d2
clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&) + 7322
17 clang 0x0000000001644671
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*) + 9095
18 clang 0x000000000162d795
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier) + 95
19 clang 0x000000000162dcce
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) + 174
20 clang 0x000000000162d402
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) + 2830
21 clang 0x000000000162c8aa
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 538
22 clang 0x0000000001625bb8 clang::ParseAST(clang::Sema&, bool, bool)
+ 393
23 clang 0x00000000010e300e clang::ASTFrontendAction::ExecuteAction()
+ 322
24 clang 0x00000000010e2b43 clang::FrontendAction::Execute() + 139
25 clang 0x00000000010ad73b
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 721
26 clang 0x000000000107158c
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1090
27 clang 0x000000000105eebb cc1_main(char const**, char const**, char
const*, void*) + 641
28 clang 0x000000000106bdfd main + 754
29 libc.so.6 0x00007f7b9662c78d __libc_start_main + 237
30 clang 0x000000000105d4c9
Stack dump:
0. Program arguments:
/usr/local/google/home/nlewycky/llvm/Debug+Asserts/bin/clang -cc1 -std=gnu++11
-w -x c++ x.best
1. <eof> parser at end of file
2. x.best:1:1: parsing struct/union/class body
Aborted (core dumped)</pre>
</div>
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