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644cb69f | 1 | /* Implementation of the COUNT intrinsic |
a5544970 | 2 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
644cb69f FXC |
3 | Contributed by Paul Brook <paul@nowt.org> |
4 | ||
0cd0559e | 5 | This file is part of the GNU Fortran runtime library (libgfortran). |
644cb69f FXC |
6 | |
7 | Libgfortran is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either | |
748086b7 | 10 | version 3 of the License, or (at your option) any later version. |
644cb69f FXC |
11 | |
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
644cb69f | 25 | |
36ae8a61 | 26 | #include "libgfortran.h" |
644cb69f FXC |
27 | |
28 | ||
90469382 | 29 | #if defined (HAVE_GFC_INTEGER_16) |
644cb69f FXC |
30 | |
31 | ||
90469382 TK |
32 | extern void count_16_l (gfc_array_i16 * const restrict, |
33 | gfc_array_l1 * const restrict, const index_type * const restrict); | |
34 | export_proto(count_16_l); | |
644cb69f FXC |
35 | |
36 | void | |
90469382 TK |
37 | count_16_l (gfc_array_i16 * const restrict retarray, |
38 | gfc_array_l1 * const restrict array, | |
64acfd99 | 39 | const index_type * const restrict pdim) |
644cb69f FXC |
40 | { |
41 | index_type count[GFC_MAX_DIMENSIONS]; | |
42 | index_type extent[GFC_MAX_DIMENSIONS]; | |
43 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
44 | index_type dstride[GFC_MAX_DIMENSIONS]; | |
90469382 | 45 | const GFC_LOGICAL_1 * restrict base; |
64acfd99 | 46 | GFC_INTEGER_16 * restrict dest; |
644cb69f FXC |
47 | index_type rank; |
48 | index_type n; | |
49 | index_type len; | |
50 | index_type delta; | |
51 | index_type dim; | |
90469382 | 52 | int src_kind; |
da96f5ab | 53 | int continue_loop; |
644cb69f FXC |
54 | |
55 | /* Make dim zero based to avoid confusion. */ | |
56 | dim = (*pdim) - 1; | |
57 | rank = GFC_DESCRIPTOR_RANK (array) - 1; | |
58 | ||
90469382 TK |
59 | src_kind = GFC_DESCRIPTOR_SIZE (array); |
60 | ||
dfb55fdc | 61 | len = GFC_DESCRIPTOR_EXTENT(array,dim); |
da96f5ab TK |
62 | if (len < 0) |
63 | len = 0; | |
64 | ||
dfb55fdc | 65 | delta = GFC_DESCRIPTOR_STRIDE_BYTES(array,dim); |
644cb69f FXC |
66 | |
67 | for (n = 0; n < dim; n++) | |
68 | { | |
dfb55fdc TK |
69 | sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,n); |
70 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); | |
80ee04b9 TK |
71 | |
72 | if (extent[n] < 0) | |
73 | extent[n] = 0; | |
644cb69f FXC |
74 | } |
75 | for (n = dim; n < rank; n++) | |
76 | { | |
dfb55fdc TK |
77 | sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,n + 1); |
78 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n + 1); | |
80ee04b9 TK |
79 | |
80 | if (extent[n] < 0) | |
81 | extent[n] = 0; | |
644cb69f FXC |
82 | } |
83 | ||
21d1335b | 84 | if (retarray->base_addr == NULL) |
644cb69f | 85 | { |
dfb55fdc | 86 | size_t alloc_size, str; |
80ee04b9 | 87 | |
644cb69f FXC |
88 | for (n = 0; n < rank; n++) |
89 | { | |
644cb69f | 90 | if (n == 0) |
dfb55fdc | 91 | str = 1; |
644cb69f | 92 | else |
dfb55fdc TK |
93 | str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1]; |
94 | ||
95 | GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str); | |
96 | ||
644cb69f FXC |
97 | } |
98 | ||
644cb69f | 99 | retarray->offset = 0; |
ca708a2b | 100 | retarray->dtype.rank = rank; |
80ee04b9 | 101 | |
92e6f3a4 | 102 | alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1]; |
80ee04b9 TK |
103 | |
104 | if (alloc_size == 0) | |
105 | { | |
106 | /* Make sure we have a zero-sized array. */ | |
dfb55fdc | 107 | GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
80ee04b9 TK |
108 | return; |
109 | } | |
110 | else | |
92e6f3a4 | 111 | retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_INTEGER_16)); |
644cb69f FXC |
112 | } |
113 | else | |
114 | { | |
644cb69f | 115 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
fd6590f8 | 116 | runtime_error ("rank of return array incorrect in" |
5095283b FXC |
117 | " COUNT intrinsic: is %ld, should be %ld", |
118 | (long int) GFC_DESCRIPTOR_RANK (retarray), | |
119 | (long int) rank); | |
fd6590f8 | 120 | |
9731c4a3 | 121 | if (unlikely (compile_options.bounds_check)) |
fd6590f8 TK |
122 | { |
123 | for (n=0; n < rank; n++) | |
124 | { | |
125 | index_type ret_extent; | |
126 | ||
dfb55fdc | 127 | ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,n); |
fd6590f8 TK |
128 | if (extent[n] != ret_extent) |
129 | runtime_error ("Incorrect extent in return value of" | |
90469382 | 130 | " COUNT intrinsic in dimension %d:" |
60dcf38a | 131 | " is %ld, should be %ld", (int) n + 1, |
fd6590f8 TK |
132 | (long int) ret_extent, (long int) extent[n]); |
133 | } | |
134 | } | |
644cb69f FXC |
135 | } |
136 | ||
137 | for (n = 0; n < rank; n++) | |
138 | { | |
139 | count[n] = 0; | |
dfb55fdc | 140 | dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
644cb69f | 141 | if (extent[n] <= 0) |
facc1285 | 142 | return; |
644cb69f FXC |
143 | } |
144 | ||
21d1335b | 145 | base = array->base_addr; |
90469382 TK |
146 | |
147 | if (src_kind == 1 || src_kind == 2 || src_kind == 4 || src_kind == 8 | |
148 | #ifdef HAVE_GFC_LOGICAL_16 | |
149 | || src_kind == 16 | |
150 | #endif | |
151 | ) | |
152 | { | |
153 | if (base) | |
154 | base = GFOR_POINTER_TO_L1 (base, src_kind); | |
155 | } | |
156 | else | |
157 | internal_error (NULL, "Funny sized logical array in COUNT intrinsic"); | |
158 | ||
21d1335b | 159 | dest = retarray->base_addr; |
644cb69f | 160 | |
da96f5ab TK |
161 | continue_loop = 1; |
162 | while (continue_loop) | |
644cb69f | 163 | { |
90469382 | 164 | const GFC_LOGICAL_1 * restrict src; |
644cb69f FXC |
165 | GFC_INTEGER_16 result; |
166 | src = base; | |
167 | { | |
168 | ||
169 | result = 0; | |
170 | if (len <= 0) | |
171 | *dest = 0; | |
172 | else | |
173 | { | |
174 | for (n = 0; n < len; n++, src += delta) | |
175 | { | |
176 | ||
177 | if (*src) | |
178 | result++; | |
179 | } | |
180 | *dest = result; | |
181 | } | |
182 | } | |
183 | /* Advance to the next element. */ | |
184 | count[0]++; | |
185 | base += sstride[0]; | |
186 | dest += dstride[0]; | |
187 | n = 0; | |
188 | while (count[n] == extent[n]) | |
189 | { | |
190 | /* When we get to the end of a dimension, reset it and increment | |
191 | the next dimension. */ | |
192 | count[n] = 0; | |
193 | /* We could precalculate these products, but this is a less | |
5d7adf7a | 194 | frequently used path so probably not worth it. */ |
644cb69f FXC |
195 | base -= sstride[n] * extent[n]; |
196 | dest -= dstride[n] * extent[n]; | |
197 | n++; | |
80dd631f | 198 | if (n >= rank) |
644cb69f | 199 | { |
80dd631f | 200 | /* Break out of the loop. */ |
da96f5ab | 201 | continue_loop = 0; |
644cb69f FXC |
202 | break; |
203 | } | |
204 | else | |
205 | { | |
206 | count[n]++; | |
207 | base += sstride[n]; | |
208 | dest += dstride[n]; | |
209 | } | |
210 | } | |
211 | } | |
212 | } | |
213 | ||
214 | #endif |