/* { dg-do compile } */ | |
/* { dg-require-effective-target alloca } */ | |
/* { dg-options "-Wvla-larger-than=100 -O2" } */ | |
typedef __SIZE_TYPE__ size_t; | |
extern void useit (char *); | |
int num; | |
void test_vlas (size_t num) | |
{ | |
char str2[num]; /* { dg-warning "unbounded use" } */ | |
useit(str2); | |
num = 98; | |
for (int i=0; i < 1234; ++i) { | |
char str[num]; // OK, VLA in a loop, but it is a | |
// known size *AND* the compiler takes | |
// care of cleaning up between | |
// iterations with | |
// __builtin_stack_restore. | |
useit(str); | |
} | |
} |