gcc/testsuite/gcc.dg/torture/pr105537.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-ffast-math -fsignaling-nans -fvar-tracking-assignments -fno-move-loop-stores -ftree-loop-distribution" } */
   3
   4 int n;
   5
   6 double
   7 ext1 (int);
   8
   9 void
  10 ext2 (double);
  11
  12 int
  13 sum (int v1, int v2)
  14 {
  15   return v1 + v2;
  16 }
  17
  18 void
  19 bar (void)
  20 {
  21   ext2 (ext1 (n));
  22 }
  23
  24 __attribute__ ((optimize ("-O3"))) void
  25 foo (int *x)
  26 {
  27   static int i;
  28
  29   bar ();
  30   for (i = 0; i != 2; i = sum (i, 1))
  31     n = *x = 0;
  32 }
  33
  34 /* { dg-message "other options take precedence" "" { target *-*-* } 0 } */