view gcc/testsuite/gcc.dg/builtin-object-size-5.c @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-do compile { target i?86-*-linux* i?86-*-gnu* x86_64-*-linux* } } */
/* { dg-options "-O2" } */

typedef __SIZE_TYPE__ size_t;
extern void abort (void);
extern char buf[0x40000000];

void
test1 (size_t x)
{
  char *p = &buf[8];
  size_t i;

  for (i = 0; i < x; ++i)
    p = p + 4;
  if (__builtin_object_size (p, 0) != sizeof (buf) - 8)
    abort ();
}

void
test2 (size_t x)
{
  char *p = &buf[8];
  size_t i;

  for (i = 0; i < x; ++i)
    p = p + 4;
  if (__builtin_object_size (p, 1) != sizeof (buf) - 8)
    abort ();
}

void
test3 (size_t x)
{
  char *p = &buf[8];
  size_t i;

  for (i = 0; i < x; ++i)
    p = p + 4;
  if (__builtin_object_size (p, 2) != 0)
    abort ();
}

void
test4 (size_t x)
{
  char *p = &buf[8];
  size_t i;

  for (i = 0; i < x; ++i)
    p = p + 4;
  if (__builtin_object_size (p, 3) != 0)
    abort ();
}

/* { dg-final { scan-assembler-not "abort" } } */