http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50624
Bug #: 50624 Summary: detecting array overflows regressed Classification: Unclassified Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: andi-...@firstfloor.org Created attachment 25424 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25424 overflow tester The attached program tests 5 different array overflows that the compiler should be able to detect at compile time. gcc 4.5 detects 2 out of 5 with -O2 -Wall: overflow.c:14:7: warning: array subscript is above array bounds overflow.c:22:12: warning: array subscript is above array bounds Current mainline detects zero. gcc version 4.7.0 20111002 (experimental) (GCC)