------- Comment #3 from jakub at gcc dot gnu dot org 2010-07-26 18:50 ------- Reduced testcase: /* { dg-do compile } */ /* { dg-options "-O2 -Wuninitialized" } */
struct S { char *a; unsigned b; unsigned c; }; extern int foo (const char *); extern void bar (int, int); static void baz (void) { struct S cs[1]; switch (cs->b) /* { dg-warning "cs\\[^\n\r\\]\.b\\[^\n\r\\]is used uninitialized" } */ { case 101: if (foo (cs->a)) /* { dg-warning "cs\\[^\n\r\\]\.a\\[^\n\r\\]may be used uninitialized" } */ bar (cs->c, cs->b); /* { dg-warning "cs\\[^\n\r\\]\.c\\[^\n\r\\]may be used uninitialized" } */ } } void test (void) { baz (); } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45083