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/* { dg-require-effective-target alloca } */
#include <stdlib.h>
#include "analyzer-decls.h"
/* Multiple calls to malloc (without a free) should return non-equal pointers. */
void test_1 (void)
{
void *p, *q;
p = malloc (1024);
if (!p)
return;
q = malloc (1024);
__analyzer_eval (p == q); /* { dg-warning "FALSE" } */
free (p);
free (q);
}
/* Multiple calls to malloc with a free might or might not
return the same pointer. */
void test_2 (void)
{
void *p, *q;
p = malloc (1024);
if (!p)
return;
free (p);
q = malloc (1024);
__analyzer_eval (p == q); /* { dg-warning "UNKNOWN" "ideal" { xfail *-*-* } } */
/* { dg-bogus "FALSE" "status quo" { xfail *-*-* } .-1 } */
// TODO: ideally this should be UNKNOWN
free (q);
}
void test_two_malloc_sites_same_size (int flag)
{
void *p;
if (flag)
p = malloc (1024);
else
p = malloc (1024);
__analyzer_dump_exploded_nodes (0); /* { dg-warning "1 processed enode" } */
free (p);
}
void test_two_malloc_sites_different_sizes (int flag)
{
void *p;
if (flag)
p = malloc (4096);
else
p = malloc (1024);
__analyzer_dump_exploded_nodes (0); /* { dg-warning "2 processed enodes" } */
free (p);
}
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