1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -mhwmult=f5series" } */
       3  /* { dg-final { check-function-bodies "**" "" } } */
       4  
       5  /* Verify the MSP430 cost model is working as expected for the default ISA
       6     (msp430x) and f5series hwmult, when compiling at -O3.  */
       7  
       8  volatile unsigned long a;
       9  volatile unsigned int b;
      10  volatile unsigned long c;
      11  unsigned long res1;
      12  unsigned long res2;
      13  unsigned long res3;
      14  
      15  /*
      16  ** foo:
      17  ** ...
      18  **	MOV.B	#16, R14
      19  **	CALL.*	#__mspabi_slll
      20  ** ...
      21  **	MOV.*	\&res2.*
      22  ** ...
      23  **	RLA.*RLC.*
      24  ** ...
      25  **	MOV.*	\&res3.*
      26  ** ...
      27  **	RLA.*RLC.*
      28  ** ...
      29  */
      30  void foo (void)
      31  {
      32    /* Use the shift library function for this.  */
      33    res1 = (a << 16) | b;
      34    /* Emit 7 inline shifts for this.  */
      35    res2 *= 128;
      36    /* Perform this multiplication inline, using addition and shifts.  */
      37    res3 *= 100;
      38  }