sse5-pcmov.c

来自「用于进行gcc测试」· C语言 代码 · 共 24 行

/* Test that the compiler properly optimizes conditional floating point moves
   into the pcmov instruction on SSE5 systems.  */

/* { dg-do compile } */
/* { dg-require-effective-target lp64 } */
/* { dg-options "-O2 -msse5" } */

extern void exit (int);

double dbl_test (double a, double b, double c, double d)
{
  return (a > b) ? c : d;
}

double dbl_a = 1, dbl_b = 2, dbl_c = 3, dbl_d = 4, dbl_e;

int main()
{
  dbl_e = dbl_test (dbl_a, dbl_b, dbl_c, dbl_d);
  exit (0);
}

/* { dg-final { scan-assembler "pcmov" } } */