http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47496
Summary: HAS_DECL_ASSEMBLER_NAME_P and DECL_ASSEMBLER_NAME has some incosistency Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: trivial Priority: P3 Component: middle-end AssignedTo: unassig...@gcc.gnu.org ReportedBy: adam....@streamnovation.com The following code would hit gcc_unreachable if DECL_ASSEMBLER_NAME_SET_P(expr) is NULL, which seems valid if DECL_IGNORED_P is true. if (HAS_DECL_ASSEMBLER_NAME_P(expr)) return DECL_ASSEMBLER_NAME(expr); It would be more consistent if DECL_ASSEMBLER_NAME returns NULL in this special case. So DECL_ASSEMBLER_NAME should check DECL_IGNORED_P too. The other case is when the assembler name hasn't been set yet and DECL_IGNORE_P is false. It is unclear which counts as a bogus call to DECL_ASSEMBLER_NAME and which is not.