1  /* { dg-do compile { target powerpc*-*-* } } */
       2  /* { dg-options "-O2" } */
       3  /* { dg-final { scan-assembler {#before\M.*\mmflr\M} } } */
       4  
       5  /* This tests if shrink-wrapping for separate components works.
       6  
       7     r20 (a callee-saved register) is forced live at the start, so that we
       8     get it saved in a prologue at the start of the function.
       9     The link register only needs to be saved if x is non-zero; without
      10     separate shrink-wrapping it would however be saved in the one prologue.
      11     The test tests if the mflr insn ends up behind the prologue.  */
      12  
      13  void g(void);
      14  
      15  void f(int x)
      16  {
      17  	register int r20 asm("20") = x;
      18  	asm("#before" : : "r"(r20));
      19  	if (x)
      20  		g();
      21  	asm(""); // no tailcall of g
      22  }