blob: 67d91983715ebd1fb9dedd95ba162fc8e02cc207 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* { dg-do compile } */
/* { dg-options "-Os -mhwmult=f5series" } */
/* { dg-final { check-function-bodies "**" "" } } */
/* Verify the MSP430 cost model is working as expected for the default ISA
(msp430x) and f5series hwmult, when compiling at -Os. */
volatile unsigned long a;
volatile unsigned int b;
volatile unsigned long c;
unsigned long res1;
unsigned long res2;
unsigned long res3;
/*
** foo:
** ...
** MOV.B #16, R14
** CALL.* #__mspabi_slll
** ...
** MOV.B #7, R14
** CALL.* #__mspabi_slll
** ...
** MOV.B #100, R14
** MOV.B #0, R15
** ...
** CALL.* #__mspabi_mpyl_f5hw
** ...
*/
void foo (void)
{
/* Use the shift library function for this. */
res1 = (a << 16) | b;
/* Likewise. */
res2 *= 128;
/* Use the hardware multiply library function for this. */
res3 *= 100;
}
|
