/* PR tree-optimization/82596 - missing -Warray-bounds on an out-of-bounds index into string literal { dg-do compile } { dg-options "-O2 -Warray-bounds" } */ #define SIZE_MAX __SIZE_MAX__ #define SSIZE_MAX __PTRDIFF_MAX__ #define SSIZE_MIN (-SSIZE_MAX - 1) void sink (int, ...); #define T(arg) sink (arg) void test_cststring (int i) { T (""[SSIZE_MIN]); /* { dg-warning "below array bounds" "string" { xfail lp64 } } */ T (""[SSIZE_MIN + 1]); /* { dg-warning "below array bounds" "string" } */ T (""[-1]); /* { dg-warning "below array bounds" "string" } */ T (""[0]); T (""[1]); /* { dg-warning "above array bounds" "string" } */ T ("0"[2]); /* { dg-warning "above array bounds" "string" } */ T ("012"[2]); T ("012"[3]); T ("012"[4]); /* { dg-warning "above array bounds" "string" } */ T ("0123"[SSIZE_MAX]); /* { dg-warning "above array bounds" "string" } */ T ("0123"[SIZE_MAX]); /* { dg-warning "above array bounds" "string" } */ }