gcc/testsuite/gcc.target/m68k/pr36133.c

   1 /* pr36133.c
   2
   3    This test ensures that conditional branches can use the condition codes
   4    written by shift instructions, without the need for an extra TST.  */
   5
   6 /* { dg-do compile }  */
   7 /* { dg-options "-O2" }  */
   8 /* { dg-final { scan-assembler-not "tst" } } */
   9
  10 void
  11 f (unsigned int a)
  12 {
  13   if (a >> 4)
  14     asm volatile ("nop");
  15   asm volatile ("nop");
  16 }