gcc/testsuite/gcc.dg/pr37908.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sync_char_short } */
   3 /* { dg-options "-Wsync-nand" } */
   4 /* { dg-options "-Wsync-nand -march=i486" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   5 /* { dg-options "-Wsync-nand -mcpu=v9" { target sparc*-*-* } } */
   6
   7
   8 extern void abort (void);
   9
  10 int main (void)
  11 {
  12
  13   short xLoc;
  14   short xIn, xOut, xExpect, i = 1;
  15
  16   xLoc = xIn = ~ (1 << i);
  17   xExpect = ~ (xIn & 0x7F);
  18
  19   xOut = __sync_nand_and_fetch (&xLoc, 0x7F); /* { dg-message "note: '__sync_nand_and_fetch' changed semantics in GCC 4.4" } */
  20
  21   if (xOut != xExpect)
  22     abort ();
  23
  24   return 0;
  25 }