20031102-1.c

来自「用于进行gcc测试」· C语言 代码 · 共 38 行

/* PR optimization/12799 */
/* Origin: Pratap Subrahmanyam <[e-mail]> */

/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-options "-O2 -march=i686" { target { { i686-*-* x86_64-*-* } && ilp32 } } } */

/* Verify that reload_cse_move2add doesn't add unexpected CLOBBERs. */

extern void abort(void);

int loo = 1;

__inline__ char InlineFunc(void)
{
  return __builtin_expect(!!(loo == 1), 1);
}

int FooBar(void)
{
  int i;
  int var1 = InlineFunc() ? 2046 : 1023;
  int var2 = InlineFunc() ? 512 : 1024;

  for (i = 0; i < var1; i++)
    ;

  if (InlineFunc() && var2 != 512)
    abort();

  return 0;
}

int main(void)
{
  return FooBar();
}