gcc/testsuite/c-c++-common/analyzer/expect-1.c

   1 #include "../../gcc.dg/analyzer/analyzer-decls.h"
   2
   3 void *test_1 (void)
   4 {
   5   int *p = (int *)__builtin_malloc (sizeof (int));
   6   if (__builtin_expect (p != NULL, 1))
   7     {
   8       *p = 42;
   9       return p;
  10     }
  11   return NULL;
  12 }
  13
  14 void *test_2 (void)
  15 {
  16   int *p = (int *)__builtin_malloc (sizeof (int));
  17   if (__builtin_expect (p == NULL, 1))
  18     return NULL;
  19
  20   *p = 42;
  21   return p;
  22 }
  23
  24 void *test_3 (void)
  25 {
  26   int *p = (int *)__builtin_malloc (sizeof (int));
  27   if (__builtin_expect_with_probability (p == NULL, 1, 0.5f))
  28     return NULL;
  29
  30   *p = 42;
  31   return p;
  32 }