gcc/testsuite/gcc.dg/ira-shrinkwrap-prep-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-rtl-ira -fdump-rtl-pro_and_epilogue"  } */
   3
   4 int __attribute__((noinline, noclone))
   5 foo (int a)
   6 {
   7   return a + 5;
   8 }
   9
  10 static int g;
  11
  12 int __attribute__((noinline, noclone))
  13 bar (int a)
  14 {
  15   int r;
  16
  17   if (a)
  18     {
  19       r = a;
  20       while (r < 500)
  21         if (r % 2)
  22           r = foo (r);
  23         else
  24           r = foo (r+1);
  25       g = r + a;
  26     }
  27   else
  28     r = g+1;
  29   return r;
  30 }
  31
  32 /* { dg-final { scan-rtl-dump "Will split live ranges of parameters" "ira"  } } */
  33 /* { dg-final { scan-rtl-dump "Split live-range of register" "ira"  } } */
  34 /* { dg-final { scan-rtl-dump "Performing shrink-wrapping" "pro_and_epilogue"  } } */
  35 /* { dg-final { cleanup-rtl-dump "ira" } } */
  36 /* { dg-final { cleanup-rtl-dump "pro_and_epilogue" } } */