inline9.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 30 行

// PR c++/17972
// Origin: Michal Ostrowski <[e-mail]>
// Testcase by Alan Modra <[e-mail]>
// { dg-do run }
// { dg-options "-O" }
// { dg-options "-O -mtune=i686" { target i?86-*-* } }

struct thread_info
{
  short preempt_count;
} x;

static inline struct thread_info *cti (void) __attribute__ ((const));
static inline struct thread_info *cti (void)
{
  return &x;
}

void fn (void) __attribute__ ((noinline));
void fn (void)
{
  ++cti()->preempt_count;
}

int main (void)
{
  fn ();
  return 0;
}