1  /* Loop2_invariants pass should distinguish register pressures of different
       2     register classes.  In this case, register pressue of INT is high.  But
       3     we can still move the FP invariant out of the loop.  */
       4  
       5  /* { dg-do compile { target { { i?86-*-* x86_64-*-* } && lp64 } } } */
       6  /* { dg-options "-O2 -fira-loop-pressure -fdump-rtl-loop2_invariant " } */
       7  
       8  float tt;
       9  extern void foo2 (int *, int *, int *, int *, int *, int *);
      10  extern int foo3 (int, int, int, int, int, int);
      11  int foo (int a, int b, int c, int d)
      12  {
      13     int i = a;
      14     int t1, t2, t3, t4, t5, t6;
      15     t1 = t2 = t3 = t4 = t5 = t6 = 0;
      16  
      17     for (; i > 0; i += c)
      18      {
      19        tt += 123456.0;
      20        if (d > t1 + t2)
      21  	tt = 3.0;
      22        foo2 (&t1, &t2, &t3, &t4, &t5, &t6);
      23        t1 += t3 + t4 + a + b;
      24        t2 -= t5 - t6 - c - d;
      25      }
      26  
      27   return foo3 (t1, t2, t3, t4, t5, t6);
      28  }
      29  
      30  /* { dg-final { scan-rtl-dump "Decided to move invariant" "loop2_invariant"  } } */
      31