| /* Implementation of the ANY intrinsic |
| Copyright (C) 2002-2021 Free Software Foundation, Inc. |
| Contributed by Paul Brook <paul@nowt.org> |
| |
| This file is part of the GNU Fortran runtime library (libgfortran). |
| |
| Libgfortran is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public |
| License as published by the Free Software Foundation; either |
| version 3 of the License, or (at your option) any later version. |
| |
| Libgfortran is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "libgfortran.h" |
| |
| |
| #if defined (HAVE_GFC_LOGICAL_2) |
| |
| |
| extern void any_l2 (gfc_array_l2 * const restrict, |
| gfc_array_l1 * const restrict, const index_type * const restrict); |
| export_proto(any_l2); |
| |
| void |
| any_l2 (gfc_array_l2 * const restrict retarray, |
| gfc_array_l1 * const restrict array, |
| const index_type * const restrict pdim) |
| { |
| index_type count[GFC_MAX_DIMENSIONS]; |
| index_type extent[GFC_MAX_DIMENSIONS]; |
| index_type sstride[GFC_MAX_DIMENSIONS]; |
| index_type dstride[GFC_MAX_DIMENSIONS]; |
| const GFC_LOGICAL_1 * restrict base; |
| GFC_LOGICAL_2 * restrict dest; |
| index_type rank; |
| index_type n; |
| index_type len; |
| index_type delta; |
| index_type dim; |
| int src_kind; |
| int continue_loop; |
| |
| /* Make dim zero based to avoid confusion. */ |
| dim = (*pdim) - 1; |
| rank = GFC_DESCRIPTOR_RANK (array) - 1; |
| |
| src_kind = GFC_DESCRIPTOR_SIZE (array); |
| |
| len = GFC_DESCRIPTOR_EXTENT(array,dim); |
| if (len < 0) |
| len = 0; |
| |
| delta = GFC_DESCRIPTOR_STRIDE_BYTES(array,dim); |
| |
| for (n = 0; n < dim; n++) |
| { |
| sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,n); |
| extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); |
| |
| if (extent[n] < 0) |
| extent[n] = 0; |
| } |
| for (n = dim; n < rank; n++) |
| { |
| sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,n + 1); |
| extent[n] = GFC_DESCRIPTOR_EXTENT(array,n + 1); |
| |
| if (extent[n] < 0) |
| extent[n] = 0; |
| } |
| |
| if (retarray->base_addr == NULL) |
| { |
| size_t alloc_size, str; |
| |
| for (n = 0; n < rank; n++) |
| { |
| if (n == 0) |
| str = 1; |
| else |
| str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1]; |
| |
| GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str); |
| |
| } |
| |
| retarray->offset = 0; |
| retarray->dtype.rank = rank; |
| |
| alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1]; |
| |
| if (alloc_size == 0) |
| { |
| /* Make sure we have a zero-sized array. */ |
| GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
| return; |
| } |
| else |
| retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_LOGICAL_2)); |
| } |
| else |
| { |
| if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
| runtime_error ("rank of return array incorrect in" |
| " ANY intrinsic: is %ld, should be %ld", |
| (long int) GFC_DESCRIPTOR_RANK (retarray), |
| (long int) rank); |
| |
| if (unlikely (compile_options.bounds_check)) |
| { |
| for (n=0; n < rank; n++) |
| { |
| index_type ret_extent; |
| |
| ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,n); |
| if (extent[n] != ret_extent) |
| runtime_error ("Incorrect extent in return value of" |
| " ANY intrinsic in dimension %d:" |
| " is %ld, should be %ld", (int) n + 1, |
| (long int) ret_extent, (long int) extent[n]); |
| } |
| } |
| } |
| |
| for (n = 0; n < rank; n++) |
| { |
| count[n] = 0; |
| dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
| if (extent[n] <= 0) |
| return; |
| } |
| |
| base = array->base_addr; |
| |
| if (src_kind == 1 || src_kind == 2 || src_kind == 4 || src_kind == 8 |
| #ifdef HAVE_GFC_LOGICAL_16 |
| || src_kind == 16 |
| #endif |
| ) |
| { |
| if (base) |
| base = GFOR_POINTER_TO_L1 (base, src_kind); |
| } |
| else |
| internal_error (NULL, "Funny sized logical array in ANY intrinsic"); |
| |
| dest = retarray->base_addr; |
| |
| continue_loop = 1; |
| while (continue_loop) |
| { |
| const GFC_LOGICAL_1 * restrict src; |
| GFC_LOGICAL_2 result; |
| src = base; |
| { |
| |
| result = 0; |
| if (len <= 0) |
| *dest = 0; |
| else |
| { |
| for (n = 0; n < len; n++, src += delta) |
| { |
| |
| /* Return true if any of the elements are set. */ |
| if (*src) |
| { |
| result = 1; |
| break; |
| } |
| } |
| *dest = result; |
| } |
| } |
| /* Advance to the next element. */ |
| count[0]++; |
| base += sstride[0]; |
| dest += dstride[0]; |
| n = 0; |
| while (count[n] == extent[n]) |
| { |
| /* When we get to the end of a dimension, reset it and increment |
| the next dimension. */ |
| count[n] = 0; |
| /* We could precalculate these products, but this is a less |
| frequently used path so probably not worth it. */ |
| base -= sstride[n] * extent[n]; |
| dest -= dstride[n] * extent[n]; |
| n++; |
| if (n >= rank) |
| { |
| /* Break out of the loop. */ |
| continue_loop = 0; |
| break; |
| } |
| else |
| { |
| count[n]++; |
| base += sstride[n]; |
| dest += dstride[n]; |
| } |
| } |
| } |
| } |
| |
| #endif |