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/* PR c/78284 - warn on malloc with very large arguments
Test verifying that the built-in allocation functions are declared
with attribute malloc. This means that the pointer they return
can be assumed not to alias any other valid pointer. */
/* { dg-do compile } */
/* { dg-require-effective-target alloca } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
void sink (void*);
extern int x;
#define TEST(call) \
do { \
p = call; \
x = 123; \
*(int*)p = 456; \
(x == 123) ? (void)0 : __builtin_abort (); \
sink (p); \
} while (0)
void test (void *p, unsigned n)
{
TEST (__builtin_aligned_alloc (8, n));
TEST (__builtin_alloca (n));
TEST (__builtin_calloc (4, n));
TEST (__builtin_malloc (n));
TEST (__builtin_realloc (p, n + 1));
}
/* { dg-final { scan-tree-dump-not "abort" "optimized" } } */
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