1 /* { dg-do run } */
2 /* { dg-options "-O2 --save-temps -fno-inline" } */
3
4 extern void abort (void);
5 typedef long long s64;
6
7 int
subs_ext(s64 a,int b,int c)8 subs_ext (s64 a, int b, int c)
9 {
10 s64 d = a - b;
11
12 if (d == 0)
13 return a + c;
14 else
15 return d;
16 }
17
18 int
subs_shift_ext(s64 a,int b,int c)19 subs_shift_ext (s64 a, int b, int c)
20 {
21 s64 d = (a - ((s64)b << 3));
22
23 if (d == 0)
24 return a + c;
25 else
26 return d;
27 }
28
main()29 int main ()
30 {
31 int x;
32 s64 y;
33
34 x = subs_ext (0x13000002ll, 41, 15);
35 if (x != (int)(0x13000002ll - 41))
36 abort ();
37
38 x = subs_ext (0x50505050ll, 0x50505050ll, 4);
39 if (x != (int)(0x50505050ll + 4))
40 abort ();
41
42 x = subs_ext (0x12121212121ll, 2, 14);
43 if (x != (int)(0x12121212121ll - 2))
44 abort ();
45
46 x = subs_shift_ext (0x123456789ll, 4, 12);
47 if (x != (int)(0x123456789ll - (4 << 3)))
48 abort ();
49
50 x = subs_shift_ext (0x02020202ll << 3, 0x02020202ll, 8);
51 if (x != (int)(8 + (0x02020202ll << 3)))
52 abort ();
53
54 x = subs_shift_ext (0x987987987987ll, 23, 41);
55 if (x != (int)(0x987987987987ll - (23 << 3)))
56 abort ();
57
58 return 0;
59 }
60
61 /* { dg-final { scan-assembler-times "subs\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+, sxtw" 2 } } */
62