gcc/testsuite/gcc.target/i386/pr46091-1.c

   1 /* { dg-do compile { target { ! ia32 } } } */
   2 /* { dg-options "-O2" } */
   3
   4 unsigned long long test (unsigned long long a)
   5 {
   6   return a & ~(1ull << 55);
   7 }
   8
   9 extern unsigned long long m;
  10
  11 void testm (void)
  12 {
  13   m &= ~(1ull << 45);
  14 }
  15
  16 /* { dg-final { scan-assembler-times "btr" 2 } } */