------- Comment #2 from hjl dot tools at gmail dot com 2008-05-02 12:48 ------- A simple testcase:
bash-3.2$ cat x.c int foo [10]; int bar (int i) { if (8 == 8) return foo [1]; else return foo [-1]; } bash-3.2$ ./xgcc -B./ -O2 x.c -c -Wall -Werror cc1: warnings being treated as errors x.c: In function bar: x.c:9: error: array subscript is negative bash-3.2$ -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36108