/* Test to verify that the call below with the out-of-bounds offset doesn't trigger an internal assertion and is diagnosed. { dg-do compile } { dg-options "-O2 -Wrestrict" } */ #define DIFF_MAX __PTRDIFF_MAX__ void test_no_ice (int *d, __PTRDIFF_TYPE__ i, __SIZE_TYPE__ n) { if (i < DIFF_MAX / sizeof *d - 1 || DIFF_MAX / sizeof *d + 2 < i) i = DIFF_MAX / sizeof *d - 1; if (n < DIFF_MAX) n = DIFF_MAX / sizeof *d; __builtin_strncpy ((char*)(d + i), (char*)d, n); /* { dg-warning "\\\[-Wrestrict]" } */ }