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comparison gcc/testsuite/g++.dg/vect/simd-6.cc @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 // { dg-require-effective-target size32plus }
2 // { dg-additional-options "-fopenmp-simd" }
3 // { dg-additional-options "-mavx" { target avx_runtime } }
4 // { dg-final { scan-tree-dump-times "vectorized \[1-3] loops" 2 "vect" { target i?86-*-* x86_64-*-* } } }
5
6 #include "../../gcc.dg/vect/tree-vect.h"
7
8 template <typename T>
9 struct S {
10 inline S ();
11 inline ~S ();
12 inline S (const S &);
13 inline S & operator= (const S &);
14 T s;
15 };
16
17 template <typename T>
18 S<T>::S () : s (0)
19 {
20 }
21
22 template <typename T>
23 S<T>::~S ()
24 {
25 }
26
27 template <typename T>
28 S<T>::S (const S &x)
29 {
30 s = x.s;
31 }
32
33 template <typename T>
34 S<T> &
35 S<T>::operator= (const S &x)
36 {
37 s = x.s;
38 return *this;
39 }
40
41 template <typename T>
42 static inline void
43 ini (S<T> &x)
44 {
45 x.s = 0;
46 }
47
48 S<int> r, a[1024], b[1024];
49
50 #pragma omp declare reduction (+: S<int>: omp_out.s += omp_in.s)
51 #pragma omp declare reduction (plus: S<int>: omp_out.s += omp_in.s) initializer (ini (omp_priv))
52
53 template <typename T>
54 __attribute__((noipa)) void
55 foo (S<T> *a, S<T> *b)
56 {
57 #pragma omp simd reduction (inscan, +:r)
58 for (int i = 0; i < 1024; i++)
59 {
60 b[i] = r;
61 #pragma omp scan exclusive(r)
62 r.s += a[i].s;
63 }
64 }
65
66 template <typename T>
67 __attribute__((noipa)) S<T>
68 bar (void)
69 {
70 S<T> s;
71 #pragma omp simd reduction (inscan, plus:s)
72 for (int i = 0; i < 1024; i++)
73 {
74 b[i] = s;
75 #pragma omp scan exclusive(s)
76 s.s += 2 * a[i].s;
77 }
78 return S<T> (s);
79 }
80
81 __attribute__((noipa)) void
82 baz (S<int> *a, S<int> *b)
83 {
84 #pragma omp simd reduction (inscan, +:r) simdlen(1)
85 for (int i = 0; i < 1024; i++)
86 {
87 b[i] = r;
88 #pragma omp scan exclusive(r)
89 r.s += a[i].s;
90 }
91 }
92
93 __attribute__((noipa)) S<int>
94 qux (void)
95 {
96 S<int> s;
97 #pragma omp simd if (0) reduction (inscan, plus:s)
98 for (int i = 0; i < 1024; i++)
99 {
100 b[i] = s;
101 #pragma omp scan exclusive(s)
102 s.s += 2 * a[i].s;
103 }
104 return S<int> (s);
105 }
106
107 int
108 main ()
109 {
110 S<int> s;
111 check_vect ();
112 for (int i = 0; i < 1024; ++i)
113 {
114 a[i].s = i;
115 b[i].s = -1;
116 asm ("" : "+g" (i));
117 }
118 foo (a, b);
119 if (r.s != 1024 * 1023 / 2)
120 abort ();
121 for (int i = 0; i < 1024; ++i)
122 {
123 if (b[i].s != s.s)
124 abort ();
125 else
126 b[i].s = 25;
127 s.s += i;
128 }
129 if (bar<int> ().s != 1024 * 1023)
130 abort ();
131 s.s = 0;
132 for (int i = 0; i < 1024; ++i)
133 {
134 if (b[i].s != s.s)
135 abort ();
136 s.s += 2 * i;
137 }
138 r.s = 0;
139 baz (a, b);
140 if (r.s != 1024 * 1023 / 2)
141 abort ();
142 s.s = 0;
143 for (int i = 0; i < 1024; ++i)
144 {
145 if (b[i].s != s.s)
146 abort ();
147 else
148 b[i].s = 25;
149 s.s += i;
150 }
151 if (qux ().s != 1024 * 1023)
152 abort ();
153 s.s = 0;
154 for (int i = 0; i < 1024; ++i)
155 {
156 if (b[i].s != s.s)
157 abort ();
158 s.s += 2 * i;
159 }
160 return 0;
161 }