Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/20050307-1.c @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
68:561a7518be6b | 111:04ced10e8804 |
---|---|
1 /* PR target/20322 */ | |
2 | |
3 extern void abort (void); | |
4 | |
5 typedef unsigned long T; | |
6 typedef struct | |
7 { | |
8 T a, b; | |
9 unsigned char c, d; | |
10 } S; | |
11 | |
12 #define M (sizeof (T) * 4) | |
13 | |
14 S __attribute__((noinline)) | |
15 foo (T x, T y) | |
16 { | |
17 S e; | |
18 T f[2], g; | |
19 | |
20 e.b = (x & (~(T) 0 >> M)) * (y & (~(T) 0 >> M)); | |
21 e.a = (x >> M) * (y >> M); | |
22 | |
23 f[0] = (x & (~(T) 0 >> M)) * (y >> M); | |
24 f[1] = (x >> M) * (y & (~(T) 0 >> M)); | |
25 | |
26 g = e.b; | |
27 e.b += (f[0] & (~(T) 0 >> M)) << M; | |
28 if (e.b < g) | |
29 e.a++; | |
30 | |
31 g = e.b; | |
32 e.b += (f[1] & (~(T) 0 >> M)) << M; | |
33 if (e.b < g) | |
34 e.a++; | |
35 | |
36 e.a += (f[0] >> M); | |
37 e.a += (f[1] >> M); | |
38 e.c = 1; | |
39 e.d = 0; | |
40 | |
41 return e; | |
42 } | |
43 | |
44 int | |
45 main (void) | |
46 { | |
47 T x = 1UL << (M * 2 - 1); | |
48 S y = foo (1, x); | |
49 if (y.a || y.b != x || y.c != 1 || y.d) | |
50 abort (); | |
51 return 0; | |
52 } |