/* { dg-do compile } */ /* { dg-require-effective-target alloca } */ /* { dg-options "-Walloca -O0" } */ extern void f(void *); void foo(void) { // Test that strict -Walloca works even without optimization. f (__builtin_alloca(500)); // { dg-warning "use of 'alloca'" } } void bar(void) { // Test that we warn on alloca() calls, not just __builtin_alloca calls. extern void *alloca(__SIZE_TYPE__); f (alloca (123)); // { dg-warning "use of 'alloca'" } }