gcc/testsuite/gcc.dg/func-attr-1.c

   1 /* Test that setting -Os in a function attribute works.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-rtl-bbro" } */
   4
   5 extern void f1 ();
   6 extern int f2 ();
   7
   8 __attribute__ ((__optimize__ ("O2")))
   9 void
  10 f3()
  11 {
  12 }
  13
  14 __attribute__ ((__optimize__ ("-Os", "-falign-functions", "-falign-jumps", "-falign-labels", "-falign-loops", "-fno-inline-functions", "-foptimize-strlen")))
  15 int
  16 f4 () {
  17   if (f2 () == 0) {
  18     f1 ();
  19   }
  20   return 0;
  21 }
  22
  23 /* { dg-final { scan-rtl-dump-not "Duplicated bb" "bbro" } } */