[LLVMbugs] [Bug 9459] New: Assertion `Ctx->isFileContext() && "We should have been looking only at file context here already."' on invalid code
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Fri Mar 11 07:44:23 PST 2011
http://llvm.org/bugs/show_bug.cgi?id=9459
Summary: Assertion `Ctx->isFileContext() && "We should have
been looking only at file context here already."' on
invalid code
Product: clang
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: chris at bubblescope.net
CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com
Created an attachment (id=6311)
--> (http://llvm.org/bugs/attachment.cgi?id=6311)
testcase
The attached test (also given below) causes the following backtrace:
Code:
template<typename>struct ae_same;
template<typename>struct ts{}ap()
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
Backtrace:
ssert1.cc:3:5: error: use of undeclared identifier 'a'
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
^
assert1.cc:3:26: error: expected unqualified-id
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
^
assert1.cc:3:35: error: a space is required between consecutive right angle
brackets (use '> >')
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
^~
> >
assert1.cc:3:27: error: too few template arguments for class template 'ae_same'
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
^
assert1.cc:1:26: note: template is declared here
template<typename>struct ae_same;
~~~~~~~~~~~~~~~~~~ ^
assert1.cc:3:35: error: expected '(' for function-style cast or type
construction
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
~~~~~~~~^~
assert1.cc:3:39: error: definition or redeclaration of 'p' cannot name the
global scope
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
~~^
assert1.cc:3:39: error: no member named 'p' in the global namespace
{ts<a>::ap<ae_same<int>::&ae_same<>>::p(a); };
~~^
clang: SemaLookup.cpp:1001: bool
clang::Sema::CppLookupName(clang::LookupResult&, clang::Scope*): Assertion
`Ctx->isFileContext() && "We should have been looking only at file context here
already."' failed.
0 clang 0x00000000023fb09d
1 clang 0x00000000023fae90
2 libpthread.so.0 0x00007f0c60b578f0
3 libc.so.6 0x00007f0c5fe46a75 gsignal + 53
4 libc.so.6 0x00007f0c5fe4a5c0 abort + 384
5 libc.so.6 0x00007f0c5fe3f941 __assert_fail + 241
6 clang 0x0000000001437f5d
clang::Sema::CppLookupName(clang::LookupResult&, clang::Scope*) + 2243
7 clang 0x00000000014383d5
clang::Sema::LookupName(clang::LookupResult&, clang::Scope*, bool) + 795
8 clang 0x00000000014392db
clang::Sema::LookupParsedName(clang::LookupResult&, clang::Scope*,
clang::CXXScopeSpec*, bool, bool) + 323
9 clang 0x00000000013c1e4c
clang::Sema::ActOnIdExpression(clang::Scope*, clang::CXXScopeSpec&,
clang::UnqualifiedId&, bool, bool) + 880
10 clang 0x00000000012d055b clang::Parser::ParseCastExpression(bool,
bool, bool&, clang::OpaquePtr<clang::QualType>) + 2745
11 clang 0x00000000012cfa56 clang::Parser::ParseCastExpression(bool,
bool, clang::OpaquePtr<clang::QualType>) + 60
12 clang 0x00000000012cf018
clang::Parser::ParseAssignmentExpression() + 168
13 clang 0x00000000012d4a23
clang::Parser::ParseExpressionList(llvm::SmallVectorImpl<clang::Expr*>&,
llvm::SmallVectorImpl<clang::SourceLocation>&, void
(clang::Sema::*)(clang::Scope*, clang::Expr*, clang::Expr**, unsigned int),
clang::Expr*) + 277
14 clang 0x00000000012b9243
clang::Parser::ParseDeclarationAfterDeclarator(clang::Declarator&,
clang::Parser::ParsedTemplateInfo const&) + 1747
15 clang 0x00000000012b88df
clang::Parser::ParseDeclGroup(clang::Parser::ParsingDeclSpec&, unsigned int,
bool, clang::SourceLocation*) + 753
16 clang 0x00000000012b85cd
clang::Parser::ParseSimpleDeclaration(clang::ASTOwningVector<clang::Stmt*,
32u>&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, bool) +
483
17 clang 0x00000000012b83b2
clang::Parser::ParseDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&,
unsigned int, clang::SourceLocation&,
clang::Parser::ParsedAttributesWithRange&) + 624
18 clang 0x00000000012a5db5
clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*,
32u>&, bool) + 581
19 clang 0x00000000012a7332
clang::Parser::ParseCompoundStatementBody(bool) + 968
20 clang 0x00000000012aacae
clang::Parser::ParseFunctionStatementBody(clang::Decl*) + 220
21 clang 0x00000000012b242a
clang::Parser::ParseFunctionDefinition(clang::Parser::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&) + 1036
22 clang 0x00000000012e102c
clang::Parser::ParseSingleDeclarationAfterTemplate(unsigned int,
clang::Parser::ParsedTemplateInfo const&,
clang::Parser::ParsingDeclRAIIObject&, clang::SourceLocation&,
clang::AccessSpecifier) + 1280
23 clang 0x00000000012e0ade
clang::Parser::ParseTemplateDeclarationOrSpecialization(unsigned int,
clang::SourceLocation&, clang::AccessSpecifier) + 996
24 clang 0x00000000012e0663
clang::Parser::ParseDeclarationStartingWithTemplate(unsigned int,
clang::SourceLocation&, clang::AccessSpecifier) + 175
25 clang 0x00000000012b81fb
clang::Parser::ParseDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&,
unsigned int, clang::SourceLocation&,
clang::Parser::ParsedAttributesWithRange&) + 185
26 clang 0x00000000012b15bb
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::Parser::ParsingDeclSpec*) + 1225
27 clang 0x00000000012b1062
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 210
28 clang 0x0000000001299705 clang::ParseAST(clang::Sema&, bool) + 328
29 clang 0x00000000010015c1 clang::ASTFrontendAction::ExecuteAction()
+ 263
30 clang 0x000000000113bfaf clang::CodeGenAction::ExecuteAction() +
947
31 clang 0x0000000001001212 clang::FrontendAction::Execute() + 320
32 clang 0x0000000000fe9ec9
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 751
33 clang 0x0000000000f93583
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 912
34 clang 0x0000000000f855c7 cc1_main(char const**, char const**, char
const*, void*) + 982
35 clang 0x0000000000f8ea3c main + 499
36 libc.so.6 0x00007f0c5fe31c4d __libc_start_main + 253
37 clang 0x0000000000f84c69
Stack dump:
0. Program arguments: /llvmdebug/bin/clang -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
assert1.cc -mrelocation-model static -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-linker-version
2.20.1 -momit-leaf-frame-pointer -resource-dir /llvmdebug/bin/../lib/clang/3.0
-ferror-limit 19 -fmessage-length 195 -fcxx-exceptions -fexceptions
-fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics -o assert1.o -x c++
assert1.cc
1. assert1.cc:3:42: current parser token ')'
2. assert1.cc:3:1: parsing function body 'ap'
3. assert1.cc:3:1: in compound statement ('{}')
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal 1 (use -v to see
invocation)
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