| /* Implementation of the FINDLOC intrinsic |
| Copyright (C) 2018-2019 Free Software Foundation, Inc. |
| Contributed by Thomas König <tk@tkoenig.net> |
| |
| This file is part of the GNU Fortran 95 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" |
| #include <assert.h> |
| |
| #if defined (HAVE_GFC_INTEGER_1) |
| extern void findloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, GFC_LOGICAL_4 back); |
| export_proto(findloc1_i1); |
| |
| extern void |
| findloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, GFC_LOGICAL_4 back) |
| { |
| 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_INTEGER_1 * restrict base; |
| index_type * restrict dest; |
| index_type rank; |
| index_type n; |
| index_type len; |
| index_type delta; |
| index_type dim; |
| int continue_loop; |
| |
| /* Make dim zero based to avoid confusion. */ |
| rank = GFC_DESCRIPTOR_RANK (array) - 1; |
| dim = (*pdim) - 1; |
| |
| if (unlikely (dim < 0 || dim > rank)) |
| { |
| runtime_error ("Dim argument incorrect in FINDLOC intrinsic: " |
| "is %ld, should be between 1 and %ld", |
| (long int) dim + 1, (long int) rank + 1); |
| } |
| |
| len = GFC_DESCRIPTOR_EXTENT(array,dim); |
| if (len < 0) |
| len = 0; |
| delta = GFC_DESCRIPTOR_STRIDE(array,dim); |
| |
| for (n = 0; n < dim; n++) |
| { |
| sstride[n] = GFC_DESCRIPTOR_STRIDE(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(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]; |
| |
| retarray->base_addr = xmallocarray (alloc_size, sizeof (index_type)); |
| if (alloc_size == 0) |
| { |
| /* Make sure we have a zero-sized array. */ |
| GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
| return; |
| } |
| } |
| else |
| { |
| if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
| runtime_error ("rank of return array incorrect in" |
| " FINDLOC intrinsic: is %ld, should be %ld", |
| (long int) (GFC_DESCRIPTOR_RANK (retarray)), |
| (long int) rank); |
| |
| if (unlikely (compile_options.bounds_check)) |
| bounds_ifunction_return ((array_t *) retarray, extent, |
| "return value", "FINDLOC"); |
| } |
| |
| for (n = 0; n < rank; n++) |
| { |
| count[n] = 0; |
| dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
| if (extent[n] <= 0) |
| return; |
| } |
| |
| dest = retarray->base_addr; |
| continue_loop = 1; |
| |
| base = array->base_addr; |
| while (continue_loop) |
| { |
| const GFC_INTEGER_1 * restrict src; |
| index_type result; |
| |
| result = 0; |
| if (back) |
| { |
| src = base + (len - 1) * delta * 1; |
| for (n = len; n > 0; n--, src -= delta * 1) |
| { |
| if (*src == value) |
| { |
| result = n; |
| break; |
| } |
| } |
| } |
| else |
| { |
| src = base; |
| for (n = 1; n <= len; n++, src += delta * 1) |
| { |
| if (*src == value) |
| { |
| result = n; |
| break; |
| } |
| } |
| } |
| *dest = result; |
| |
| count[0]++; |
| base += sstride[0] * 1; |
| dest += dstride[0]; |
| n = 0; |
| while (count[n] == extent[n]) |
| { |
| count[n] = 0; |
| base -= sstride[n] * extent[n] * 1; |
| dest -= dstride[n] * extent[n]; |
| n++; |
| if (n >= rank) |
| { |
| continue_loop = 0; |
| break; |
| } |
| else |
| { |
| count[n]++; |
| base += sstride[n] * 1; |
| dest += dstride[n]; |
| } |
| } |
| } |
| } |
| extern void mfindloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, gfc_array_l1 *const restrict mask, |
| GFC_LOGICAL_4 back); |
| export_proto(mfindloc1_i1); |
| |
| extern void |
| mfindloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, gfc_array_l1 *const restrict mask, |
| GFC_LOGICAL_4 back) |
| { |
| index_type count[GFC_MAX_DIMENSIONS]; |
| index_type extent[GFC_MAX_DIMENSIONS]; |
| index_type sstride[GFC_MAX_DIMENSIONS]; |
| index_type mstride[GFC_MAX_DIMENSIONS]; |
| index_type dstride[GFC_MAX_DIMENSIONS]; |
| const GFC_INTEGER_1 * restrict base; |
| const GFC_LOGICAL_1 * restrict mbase; |
| index_type * restrict dest; |
| index_type rank; |
| index_type n; |
| index_type len; |
| index_type delta; |
| index_type mdelta; |
| index_type dim; |
| int mask_kind; |
| int continue_loop; |
| |
| /* Make dim zero based to avoid confusion. */ |
| rank = GFC_DESCRIPTOR_RANK (array) - 1; |
| dim = (*pdim) - 1; |
| |
| if (unlikely (dim < 0 || dim > rank)) |
| { |
| runtime_error ("Dim argument incorrect in FINDLOC intrinsic: " |
| "is %ld, should be between 1 and %ld", |
| (long int) dim + 1, (long int) rank + 1); |
| } |
| |
| len = GFC_DESCRIPTOR_EXTENT(array,dim); |
| if (len < 0) |
| len = 0; |
| |
| delta = GFC_DESCRIPTOR_STRIDE(array,dim); |
| mdelta = GFC_DESCRIPTOR_STRIDE_BYTES(mask,dim); |
| |
| mbase = mask->base_addr; |
| |
| mask_kind = GFC_DESCRIPTOR_SIZE (mask); |
| |
| if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 |
| #ifdef HAVE_GFC_LOGICAL_16 |
| || mask_kind == 16 |
| #endif |
| ) |
| mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind); |
| else |
| internal_error (NULL, "Funny sized logical array"); |
| |
| for (n = 0; n < dim; n++) |
| { |
| sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n); |
| mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,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(array, n + 1); |
| mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, 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]; |
| |
| retarray->base_addr = xmallocarray (alloc_size, sizeof (index_type)); |
| if (alloc_size == 0) |
| { |
| /* Make sure we have a zero-sized array. */ |
| GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
| return; |
| } |
| } |
| else |
| { |
| if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
| runtime_error ("rank of return array incorrect in" |
| " FINDLOC intrinsic: is %ld, should be %ld", |
| (long int) (GFC_DESCRIPTOR_RANK (retarray)), |
| (long int) rank); |
| |
| if (unlikely (compile_options.bounds_check)) |
| bounds_ifunction_return ((array_t *) retarray, extent, |
| "return value", "FINDLOC"); |
| } |
| |
| for (n = 0; n < rank; n++) |
| { |
| count[n] = 0; |
| dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
| if (extent[n] <= 0) |
| return; |
| } |
| |
| dest = retarray->base_addr; |
| continue_loop = 1; |
| |
| base = array->base_addr; |
| while (continue_loop) |
| { |
| const GFC_INTEGER_1 * restrict src; |
| const GFC_LOGICAL_1 * restrict msrc; |
| index_type result; |
| |
| result = 0; |
| if (back) |
| { |
| src = base + (len - 1) * delta * 1; |
| msrc = mbase + (len - 1) * mdelta; |
| for (n = len; n > 0; n--, src -= delta * 1, msrc -= mdelta) |
| { |
| if (*msrc && *src == value) |
| { |
| result = n; |
| break; |
| } |
| } |
| } |
| else |
| { |
| src = base; |
| msrc = mbase; |
| for (n = 1; n <= len; n++, src += delta * 1, msrc += mdelta) |
| { |
| if (*msrc && *src == value) |
| { |
| result = n; |
| break; |
| } |
| } |
| } |
| *dest = result; |
| |
| count[0]++; |
| base += sstride[0] * 1; |
| mbase += mstride[0]; |
| dest += dstride[0]; |
| n = 0; |
| while (count[n] == extent[n]) |
| { |
| count[n] = 0; |
| base -= sstride[n] * extent[n] * 1; |
| mbase -= mstride[n] * extent[n]; |
| dest -= dstride[n] * extent[n]; |
| n++; |
| if (n >= rank) |
| { |
| continue_loop = 0; |
| break; |
| } |
| else |
| { |
| count[n]++; |
| base += sstride[n] * 1; |
| dest += dstride[n]; |
| } |
| } |
| } |
| } |
| extern void sfindloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, GFC_LOGICAL_4 *const restrict mask, |
| GFC_LOGICAL_4 back); |
| export_proto(sfindloc1_i1); |
| |
| extern void |
| sfindloc1_i1 (gfc_array_index_type * const restrict retarray, |
| gfc_array_i1 * const restrict array, GFC_INTEGER_1 value, |
| const index_type * restrict pdim, GFC_LOGICAL_4 *const restrict mask, |
| GFC_LOGICAL_4 back) |
| { |
| index_type count[GFC_MAX_DIMENSIONS]; |
| index_type extent[GFC_MAX_DIMENSIONS]; |
| index_type dstride[GFC_MAX_DIMENSIONS]; |
| index_type * restrict dest; |
| index_type rank; |
| index_type n; |
| index_type len; |
| index_type dim; |
| bool continue_loop; |
| |
| if (mask == NULL || *mask) |
| { |
| findloc1_i1 (retarray, array, value, pdim, back); |
| return; |
| } |
| /* Make dim zero based to avoid confusion. */ |
| rank = GFC_DESCRIPTOR_RANK (array) - 1; |
| dim = (*pdim) - 1; |
| |
| if (unlikely (dim < 0 || dim > rank)) |
| { |
| runtime_error ("Dim argument incorrect in FINDLOC intrinsic: " |
| "is %ld, should be between 1 and %ld", |
| (long int) dim + 1, (long int) rank + 1); |
| } |
| |
| len = GFC_DESCRIPTOR_EXTENT(array,dim); |
| if (len < 0) |
| len = 0; |
| |
| for (n = 0; n < dim; n++) |
| { |
| extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); |
| |
| if (extent[n] <= 0) |
| extent[n] = 0; |
| } |
| |
| for (n = dim; n < rank; n++) |
| { |
| 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]; |
| |
| retarray->base_addr = xmallocarray (alloc_size, sizeof (index_type)); |
| if (alloc_size == 0) |
| { |
| /* Make sure we have a zero-sized array. */ |
| GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
| return; |
| } |
| } |
| else |
| { |
| if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
| runtime_error ("rank of return array incorrect in" |
| " FINDLOC intrinsic: is %ld, should be %ld", |
| (long int) (GFC_DESCRIPTOR_RANK (retarray)), |
| (long int) rank); |
| |
| if (unlikely (compile_options.bounds_check)) |
| bounds_ifunction_return ((array_t *) retarray, extent, |
| "return value", "FINDLOC"); |
| } |
| |
| for (n = 0; n < rank; n++) |
| { |
| count[n] = 0; |
| dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
| if (extent[n] <= 0) |
| return; |
| } |
| dest = retarray->base_addr; |
| continue_loop = 1; |
| |
| while (continue_loop) |
| { |
| *dest = 0; |
| |
| count[0]++; |
| dest += dstride[0]; |
| n = 0; |
| while (count[n] == extent[n]) |
| { |
| count[n] = 0; |
| dest -= dstride[n] * extent[n]; |
| n++; |
| if (n >= rank) |
| { |
| continue_loop = 0; |
| break; |
| } |
| else |
| { |
| count[n]++; |
| dest += dstride[n]; |
| } |
| } |
| } |
| } |
| #endif |