240 lines
6.8 KiB
C
240 lines
6.8 KiB
C
/* Implementation of the MATMUL intrinsic
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Copyright (C) 2002-2013 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@nowt.org>
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This file is part of the GNU Fortran runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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#include <stdlib.h>
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#include <assert.h>
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#if defined (HAVE_GFC_LOGICAL_4)
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/* Dimensions: retarray(x,y) a(x, count) b(count,y).
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Either a or b can be rank 1. In this case x or y is 1. */
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extern void matmul_l4 (gfc_array_l4 * const restrict,
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gfc_array_l1 * const restrict, gfc_array_l1 * const restrict);
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export_proto(matmul_l4);
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void
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matmul_l4 (gfc_array_l4 * const restrict retarray,
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gfc_array_l1 * const restrict a, gfc_array_l1 * const restrict b)
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{
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const GFC_LOGICAL_1 * restrict abase;
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const GFC_LOGICAL_1 * restrict bbase;
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GFC_LOGICAL_4 * restrict dest;
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index_type rxstride;
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index_type rystride;
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index_type xcount;
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index_type ycount;
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index_type xstride;
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index_type ystride;
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index_type x;
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index_type y;
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int a_kind;
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int b_kind;
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const GFC_LOGICAL_1 * restrict pa;
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const GFC_LOGICAL_1 * restrict pb;
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index_type astride;
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index_type bstride;
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index_type count;
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index_type n;
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assert (GFC_DESCRIPTOR_RANK (a) == 2
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|| GFC_DESCRIPTOR_RANK (b) == 2);
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if (retarray->base_addr == NULL)
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{
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if (GFC_DESCRIPTOR_RANK (a) == 1)
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{
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GFC_DIMENSION_SET(retarray->dim[0], 0,
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GFC_DESCRIPTOR_EXTENT(b,1) - 1, 1);
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}
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else if (GFC_DESCRIPTOR_RANK (b) == 1)
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{
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GFC_DIMENSION_SET(retarray->dim[0], 0,
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GFC_DESCRIPTOR_EXTENT(a,0) - 1, 1);
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}
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else
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{
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GFC_DIMENSION_SET(retarray->dim[0], 0,
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GFC_DESCRIPTOR_EXTENT(a,0) - 1, 1);
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GFC_DIMENSION_SET(retarray->dim[1], 0,
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GFC_DESCRIPTOR_EXTENT(b,1) - 1,
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GFC_DESCRIPTOR_EXTENT(retarray,0));
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}
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retarray->base_addr
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= xmalloc (sizeof (GFC_LOGICAL_4) * size0 ((array_t *) retarray));
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retarray->offset = 0;
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}
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else if (unlikely (compile_options.bounds_check))
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{
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index_type ret_extent, arg_extent;
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if (GFC_DESCRIPTOR_RANK (a) == 1)
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{
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arg_extent = GFC_DESCRIPTOR_EXTENT(b,1);
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ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,0);
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if (arg_extent != ret_extent)
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runtime_error ("Incorrect extent in return array in"
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" MATMUL intrinsic: is %ld, should be %ld",
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(long int) ret_extent, (long int) arg_extent);
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}
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else if (GFC_DESCRIPTOR_RANK (b) == 1)
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{
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arg_extent = GFC_DESCRIPTOR_EXTENT(a,0);
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ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,0);
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if (arg_extent != ret_extent)
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runtime_error ("Incorrect extent in return array in"
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" MATMUL intrinsic: is %ld, should be %ld",
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(long int) ret_extent, (long int) arg_extent);
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}
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else
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{
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arg_extent = GFC_DESCRIPTOR_EXTENT(a,0);
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ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,0);
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if (arg_extent != ret_extent)
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runtime_error ("Incorrect extent in return array in"
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" MATMUL intrinsic for dimension 1:"
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" is %ld, should be %ld",
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(long int) ret_extent, (long int) arg_extent);
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arg_extent = GFC_DESCRIPTOR_EXTENT(b,1);
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ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,1);
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if (arg_extent != ret_extent)
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runtime_error ("Incorrect extent in return array in"
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" MATMUL intrinsic for dimension 2:"
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" is %ld, should be %ld",
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(long int) ret_extent, (long int) arg_extent);
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}
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}
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abase = a->base_addr;
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a_kind = GFC_DESCRIPTOR_SIZE (a);
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if (a_kind == 1 || a_kind == 2 || a_kind == 4 || a_kind == 8
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#ifdef HAVE_GFC_LOGICAL_16
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|| a_kind == 16
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#endif
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)
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abase = GFOR_POINTER_TO_L1 (abase, a_kind);
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else
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internal_error (NULL, "Funny sized logical array");
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bbase = b->base_addr;
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b_kind = GFC_DESCRIPTOR_SIZE (b);
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if (b_kind == 1 || b_kind == 2 || b_kind == 4 || b_kind == 8
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#ifdef HAVE_GFC_LOGICAL_16
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|| b_kind == 16
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#endif
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)
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bbase = GFOR_POINTER_TO_L1 (bbase, b_kind);
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else
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internal_error (NULL, "Funny sized logical array");
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dest = retarray->base_addr;
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if (GFC_DESCRIPTOR_RANK (retarray) == 1)
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{
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rxstride = GFC_DESCRIPTOR_STRIDE(retarray,0);
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rystride = rxstride;
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}
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else
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{
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rxstride = GFC_DESCRIPTOR_STRIDE(retarray,0);
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rystride = GFC_DESCRIPTOR_STRIDE(retarray,1);
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}
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/* If we have rank 1 parameters, zero the absent stride, and set the size to
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one. */
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if (GFC_DESCRIPTOR_RANK (a) == 1)
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{
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astride = GFC_DESCRIPTOR_STRIDE_BYTES(a,0);
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count = GFC_DESCRIPTOR_EXTENT(a,0);
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xstride = 0;
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rxstride = 0;
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xcount = 1;
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}
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else
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{
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astride = GFC_DESCRIPTOR_STRIDE_BYTES(a,1);
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count = GFC_DESCRIPTOR_EXTENT(a,1);
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xstride = GFC_DESCRIPTOR_STRIDE_BYTES(a,0);
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xcount = GFC_DESCRIPTOR_EXTENT(a,0);
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}
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if (GFC_DESCRIPTOR_RANK (b) == 1)
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{
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bstride = GFC_DESCRIPTOR_STRIDE_BYTES(b,0);
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assert(count == GFC_DESCRIPTOR_EXTENT(b,0));
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ystride = 0;
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rystride = 0;
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ycount = 1;
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}
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else
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{
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bstride = GFC_DESCRIPTOR_STRIDE_BYTES(b,0);
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assert(count == GFC_DESCRIPTOR_EXTENT(b,0));
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ystride = GFC_DESCRIPTOR_STRIDE_BYTES(b,1);
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ycount = GFC_DESCRIPTOR_EXTENT(b,1);
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}
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for (y = 0; y < ycount; y++)
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{
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for (x = 0; x < xcount; x++)
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{
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/* Do the summation for this element. For real and integer types
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this is the same as DOT_PRODUCT. For complex types we use do
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a*b, not conjg(a)*b. */
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pa = abase;
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pb = bbase;
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*dest = 0;
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for (n = 0; n < count; n++)
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{
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if (*pa && *pb)
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{
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*dest = 1;
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break;
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}
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pa += astride;
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pb += bstride;
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}
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dest += rxstride;
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abase += xstride;
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}
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abase -= xstride * xcount;
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bbase += ystride;
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dest += rystride - (rxstride * xcount);
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}
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}
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#endif
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