gcc/testsuite/gcc.dg/old-style-asm-1.c

   1 /* PR inline-asm/8832 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -dP" } */
   4
   5 /* Verify that GCC doesn't optimize
   6    old style asm instructions.  */
   7
   8 void foo(int v)
   9 {
  10   if (v)
  11     asm ("dummy1");
  12
  13   asm ("dummy2");
  14
  15   if (v)
  16     asm ("dummy3");
  17 }
  18
  19 /* The purpose of the test below is to check that there are two branches
  20    in the generated code, supposedly corresponding to the if-statements.
  21    It tries to check for jump_insn (set (pc) pattern, so that jump_insns
  22    corresponding to return are not taken into account.  */
  23 /* { dg-final { scan-assembler "jump_insn.*set \\(pc\\).*jump_insn.*set \\(pc\\)"} } */