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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/* { dg-do compile } */
/* { dg-options "-O1" } */
#include <stdbool.h>
#include <stdint.h>
/*
* sub.f r0,r0,r1
* st_s r0,[r2]
* mov_s r0,1
* j_s.d [blink]
* mov.nv r0,0
*/
bool sub_overflow (int32_t a, int32_t b, int32_t *res)
{
return __builtin_sub_overflow (a, b, res);
}
/*
* sub.f r0,r0,-1234
* st_s r0,[r1]
* mov_s r0,1
* j_s.d [blink]
* mov.nv r0,0
*/
bool subi_overflow (int32_t a, int32_t *res)
{
return __builtin_sub_overflow (a, -1234, res);
}
/*
* sub.f r3,r0,r1
* st_s r3,[r2]
* j_s.d [blink]
* setlo r0,r0,r1
*/
bool usub_overflow (uint32_t a, uint32_t b, uint32_t *res)
{
return __builtin_sub_overflow (a, b, res);
}
/*
* sub.f r2,r0,4321
* seths r0,4320,r0
* j_s.d [blink]
* st_s r2,[r1]
*/
bool usubi_overflow (uint32_t a, uint32_t *res)
{
return __builtin_sub_overflow (a, 4321, res);
}
/*
* sub.f r0,r0,r1
* mov_s r0,1
* j_s.d [blink]
* mov.nv r0,0
*/
bool sub_overflow_p (int32_t a, int32_t b, int32_t res)
{
return __builtin_sub_overflow_p (a, b, res);
}
/*
* sub.f r0,r0,-1000
* mov_s r0,1
* j_s.d [blink]
* mov.nv r0,0
*/
bool subi_overflow_p (int32_t a, int32_t res)
{
return __builtin_sub_overflow_p (a, -1000, res);
}
/*
* j_s.d [blink]
* setlo r0,r0,r1
*/
bool usub_overflow_p (uint32_t a, uint32_t b, uint32_t res)
{
return __builtin_sub_overflow_p (a, b, res);
}
/*
* seths r0,1999,r0
* j_s.d [blink]
*/
bool usubi_overflow_p (uint32_t a, uint32_t res)
{
return __builtin_sub_overflow_p (a, 2000, res);
}
/* { dg-final { scan-assembler-times "sub.f\\s\+" 6 } } */
/* { dg-final { scan-assembler-times "mov\.nv\\s\+" 4 } } */
/* { dg-final { scan-assembler-times "setlo\\s\+" 2 } } */
/* { dg-final { scan-assembler-times "seths\\s\+" 2 } } */
/* { dg-final { scan-assembler-not "cmp" } } */
|
