On 14 March 2012 09:21, Alexander Potapenko <[email protected]> wrote:
> (see the test case attached) > > Looks like the lookup is performed while reporting the error: > Thanks for the testcase. This is actually a crash on valid while emitting a warning. Patch attached! Nick > > > $ clang test.ii -Wall -Werror -Wfatal-errors > > > test.ii:8:31: fatal error: use of undeclared identifier '_CharT_alloc_type' > typedef typename _CharT_alloc_type::size_type size_type; > ^ > clang: > /usr/local/google/asan/asan-llvm-trunk/llvm/tools/clang/lib/AST/DeclBase.cpp:1088: > clang::DeclContextLookupResult > clang::DeclContext::lookup(clang::DeclarationName): Assertion > `DeclKind != Decl::LinkageSpec && "Should not perform lookups into > linkage specs!"' failed. > 0 clang 0x0000000001e9026f > 1 clang 0x0000000001e924e2 > 2 libpthread.so.0 0x00007f53476868f0 > 3 libc.so.6 0x00007f5346975a75 gsignal + 53 > 4 libc.so.6 0x00007f53469795c0 abort + 384 > 5 libc.so.6 0x00007f534696e941 __assert_fail + 241 > 6 clang 0x00000000010dd9b1 > clang::DeclContext::lookup(clang::DeclarationName) + 529 > 7 clang 0x00000000010dda39 > clang::DeclContext::lookup(clang::DeclarationName) const + 9 > 8 clang 0x0000000000b52aec > 9 clang 0x0000000000b58abd > clang::Sema::LookupQualifiedName(clang::LookupResult&, > clang::DeclContext*, bool) + 301 > 10 clang 0x0000000000b7c91a > 11 clang 0x0000000000b7cf56 > 12 clang 0x0000000000b95480 > clang::Sema::CreateOverloadedUnaryOp(clang::SourceLocation, unsigned > int, clang::UnresolvedSetImpl const&, clang::Expr*) + 1856 > 13 clang 0x0000000000acaef7 > clang::Sema::BuildUnaryOp(clang::Scope*, clang::SourceLocation, > clang::UnaryOperatorKind, clang::Expr*) + 471 > 14 clang 0x0000000000c62583 > 15 clang 0x0000000000c4086d > 16 clang 0x0000000000c62e50 > 17 clang 0x0000000000c64a13 > 18 clang 0x0000000000c62c9d > 19 clang 0x0000000000c6609f > clang::Sema::SubstStmt(clang::Stmt*, > clang::MultiLevelTemplateArgumentList const&) + 79 > 20 clang 0x0000000000c77302 > clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, > clang::FunctionDecl*, bool, bool) + 1138 > 21 clang 0x0000000000c76bbf > clang::Sema::PerformPendingInstantiations(bool) + 559 > 22 clang 0x0000000000c77699 > clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, > clang::FunctionDecl*, bool, bool) + 2057 > 23 clang 0x0000000000c76bbf > clang::Sema::PerformPendingInstantiations(bool) + 559 > 24 clang 0x0000000000995d5a > clang::Sema::ActOnEndOfTranslationUnit() + 378 > 25 clang 0x000000000091cfa5 > clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) > + 613 > 26 clang 0x000000000091307d clang::ParseAST(clang::Sema&, bool) > + 285 > 27 clang 0x00000000007b0654 > clang::CodeGenAction::ExecuteAction() + 68 > 28 clang 0x00000000006583c1 > clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 321 > 29 clang 0x00000000006417a4 > clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1348 > 30 clang 0x0000000000637550 cc1_main(char const**, char > const**, char const*, void*) + 960 > 31 clang 0x00000000006405a9 main + 7257 > 32 libc.so.6 0x00007f5346960c4d __libc_start_main + 253 > 33 clang 0x0000000000634ff9 >
no-useless-lookup-diagnosetwophase-1.patch
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