view gcc/testsuite/gcc.dg/guality/clztest.c @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
line wrap: on
line source

/* { dg-do run { target { { i?86-*-* x86_64-*-* } && lp64 } } } */
/* { dg-options "-g -fno-ipa-icf" } */

volatile int vv;

__attribute__((noinline, noclone)) long
foo (long x)
{
  long f = __builtin_clzl (x);
  long g = f;
  asm volatile ("" : "+r" (f));
  vv++;		/* { dg-final { gdb-test . "g" "f" } } */
  return f;
}

__attribute__((noinline, noclone)) long
bar (long x)
{
  long f = __builtin_clzl (x);
  long g = f;
  asm volatile ("" : "+r" (f));
  vv++;		/* { dg-final { gdb-test . "g" "f" } } */
  return f;
}

int
main ()
{
  long x = vv;
  foo (x + 0x123456UL);
  bar (x + 0x7fffffffUL);
  return 0;
}