/* Implementation of the MAXLOC intrinsic
- Copyright 2002 Free Software Foundation, Inc.
+ Copyright 2002, 2007, 2009 Free Software Foundation, Inc.
Contributed by Paul Brook <paul@nowt.org>
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 2 of the License, or (at your option) any later version.
-
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
+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.
-You should have received a copy of the GNU General Public
-License along with libgfortran; see the file COPYING. If not,
-write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+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 "config.h"
+#include "libgfortran.h"
#include <stdlib.h>
#include <assert.h>
-#include <float.h>
#include <limits.h>
-#include "libgfortran.h"
#if defined (HAVE_GFC_REAL_10) && defined (HAVE_GFC_INTEGER_4)
-extern void maxloc0_4_r10 (gfc_array_i4 * retarray, gfc_array_r10 *array);
+extern void maxloc0_4_r10 (gfc_array_i4 * const restrict retarray,
+ gfc_array_r10 * const restrict array);
export_proto(maxloc0_4_r10);
void
-maxloc0_4_r10 (gfc_array_i4 * retarray, gfc_array_r10 *array)
+maxloc0_4_r10 (gfc_array_i4 * const restrict retarray,
+ gfc_array_r10 * const restrict array)
{
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type sstride[GFC_MAX_DIMENSIONS];
index_type dstride;
- GFC_REAL_10 *base;
- GFC_INTEGER_4 *dest;
+ const GFC_REAL_10 *base;
+ GFC_INTEGER_4 * restrict dest;
index_type rank;
index_type n;
if (retarray->data == NULL)
{
- retarray->dim[0].lbound = 0;
- retarray->dim[0].ubound = rank-1;
- retarray->dim[0].stride = 1;
+ GFC_DIMENSION_SET(retarray->dim[0], 0, rank-1, 1);
retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
retarray->offset = 0;
retarray->data = internal_malloc_size (sizeof (GFC_INTEGER_4) * rank);
}
else
{
- if (GFC_DESCRIPTOR_RANK (retarray) != 1)
- runtime_error ("rank of return array does not equal 1");
-
- if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank)
- runtime_error ("dimension of return array incorrect");
-
- if (retarray->dim[0].stride == 0)
- retarray->dim[0].stride = 1;
+ if (unlikely (compile_options.bounds_check))
+ bounds_iforeach_return ((array_t *) retarray, (array_t *) array,
+ "MAXLOC");
}
- /* TODO: It should be a front end job to correctly set the strides. */
-
- if (array->dim[0].stride == 0)
- array->dim[0].stride = 1;
-
- dstride = retarray->dim[0].stride;
+ dstride = GFC_DESCRIPTOR_STRIDE(retarray,0);
dest = retarray->data;
for (n = 0; n < rank; n++)
{
- sstride[n] = array->dim[n].stride;
- extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
+ sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
+ extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
count[n] = 0;
if (extent[n] <= 0)
{
dest[n * dstride] = 1;
{
- GFC_REAL_10 maxval;
-
- maxval = -GFC_REAL_10_HUGE;
+ GFC_REAL_10 maxval;
+#if defined(GFC_REAL_10_QUIET_NAN)
+ int fast = 0;
+#endif
+#if defined(GFC_REAL_10_INFINITY)
+ maxval = -GFC_REAL_10_INFINITY;
+#else
+ maxval = -GFC_REAL_10_HUGE;
+#endif
while (base)
{
- {
- /* Implementation start. */
+ do
+ {
+ /* Implementation start. */
- if (*base > maxval)
- {
- maxval = *base;
- for (n = 0; n < rank; n++)
- dest[n * dstride] = count[n] + 1;
- }
- /* Implementation end. */
- }
- /* Advance to the next element. */
- count[0]++;
- base += sstride[0];
+#if defined(GFC_REAL_10_QUIET_NAN)
+ }
+ while (0);
+ if (unlikely (!fast))
+ {
+ do
+ {
+ if (*base >= maxval)
+ {
+ fast = 1;
+ maxval = *base;
+ for (n = 0; n < rank; n++)
+ dest[n * dstride] = count[n] + 1;
+ break;
+ }
+ base += sstride[0];
+ }
+ while (++count[0] != extent[0]);
+ if (likely (fast))
+ continue;
+ }
+ else do
+ {
+#endif
+ if (*base > maxval)
+ {
+ maxval = *base;
+ for (n = 0; n < rank; n++)
+ dest[n * dstride] = count[n] + 1;
+ }
+ /* Implementation end. */
+ /* Advance to the next element. */
+ base += sstride[0];
+ }
+ while (++count[0] != extent[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 proabably not worth it. */
- base -= sstride[n] * extent[n];
- n++;
- if (n == rank)
- {
- /* Break out of the loop. */
- base = NULL;
- break;
- }
- else
- {
- count[n]++;
- base += sstride[n];
- }
- }
+ do
+ {
+ /* 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];
+ n++;
+ if (n == rank)
+ {
+ /* Break out of the loop. */
+ base = NULL;
+ break;
+ }
+ else
+ {
+ count[n]++;
+ base += sstride[n];
+ }
+ }
+ while (count[n] == extent[n]);
}
}
}
-extern void mmaxloc0_4_r10 (gfc_array_i4 *, gfc_array_r10 *, gfc_array_l4 *);
+extern void mmaxloc0_4_r10 (gfc_array_i4 * const restrict,
+ gfc_array_r10 * const restrict, gfc_array_l1 * const restrict);
export_proto(mmaxloc0_4_r10);
void
-mmaxloc0_4_r10 (gfc_array_i4 * retarray, gfc_array_r10 *array,
- gfc_array_l4 * mask)
+mmaxloc0_4_r10 (gfc_array_i4 * const restrict retarray,
+ gfc_array_r10 * const restrict array,
+ gfc_array_l1 * const restrict mask)
{
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type mstride[GFC_MAX_DIMENSIONS];
index_type dstride;
GFC_INTEGER_4 *dest;
- GFC_REAL_10 *base;
- GFC_LOGICAL_4 *mbase;
+ const GFC_REAL_10 *base;
+ GFC_LOGICAL_1 *mbase;
int rank;
index_type n;
+ int mask_kind;
rank = GFC_DESCRIPTOR_RANK (array);
if (rank <= 0)
if (retarray->data == NULL)
{
- retarray->dim[0].lbound = 0;
- retarray->dim[0].ubound = rank-1;
- retarray->dim[0].stride = 1;
+ GFC_DIMENSION_SET(retarray->dim[0], 0, rank - 1, 1);
retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
retarray->offset = 0;
retarray->data = internal_malloc_size (sizeof (GFC_INTEGER_4) * rank);
}
else
{
- if (GFC_DESCRIPTOR_RANK (retarray) != 1)
- runtime_error ("rank of return array does not equal 1");
-
- if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank)
- runtime_error ("dimension of return array incorrect");
+ if (unlikely (compile_options.bounds_check))
+ {
- if (retarray->dim[0].stride == 0)
- retarray->dim[0].stride = 1;
+ bounds_iforeach_return ((array_t *) retarray, (array_t *) array,
+ "MAXLOC");
+ bounds_equal_extents ((array_t *) mask, (array_t *) array,
+ "MASK argument", "MAXLOC");
+ }
}
- /* TODO: It should be a front end job to correctly set the strides. */
+ mask_kind = GFC_DESCRIPTOR_SIZE (mask);
- if (array->dim[0].stride == 0)
- array->dim[0].stride = 1;
+ mbase = mask->data;
- if (mask->dim[0].stride == 0)
- mask->dim[0].stride = 1;
+ 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
+ runtime_error ("Funny sized logical array");
- dstride = retarray->dim[0].stride;
+ dstride = GFC_DESCRIPTOR_STRIDE(retarray,0);
dest = retarray->data;
for (n = 0; n < rank; n++)
{
- sstride[n] = array->dim[n].stride;
- mstride[n] = mask->dim[n].stride;
- extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
+ sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
+ mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n);
+ extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
count[n] = 0;
if (extent[n] <= 0)
{
}
base = array->data;
- mbase = mask->data;
-
- if (GFC_DESCRIPTOR_SIZE (mask) != 4)
- {
- /* This allows the same loop to be used for all logical types. */
- assert (GFC_DESCRIPTOR_SIZE (mask) == 8);
- for (n = 0; n < rank; n++)
- mstride[n] <<= 1;
- mbase = (GFOR_POINTER_L8_TO_L4 (mbase));
- }
-
/* Initialize the return value. */
for (n = 0; n < rank; n++)
- dest[n * dstride] = 1;
+ dest[n * dstride] = 0;
{
GFC_REAL_10 maxval;
+ int fast = 0;
- maxval = -GFC_REAL_10_HUGE;
-
+#if defined(GFC_REAL_10_INFINITY)
+ maxval = -GFC_REAL_10_INFINITY;
+#else
+ maxval = -GFC_REAL_10_HUGE;
+#endif
while (base)
{
- {
- /* Implementation start. */
+ do
+ {
+ /* Implementation start. */
- if (*mbase && *base > maxval)
- {
- maxval = *base;
- for (n = 0; n < rank; n++)
- dest[n * dstride] = count[n] + 1;
- }
- /* Implementation end. */
- }
- /* Advance to the next element. */
- count[0]++;
- base += sstride[0];
- mbase += mstride[0];
+ }
+ while (0);
+ if (unlikely (!fast))
+ {
+ do
+ {
+ if (*mbase)
+ {
+#if defined(GFC_REAL_10_QUIET_NAN)
+ if (unlikely (dest[0] == 0))
+ for (n = 0; n < rank; n++)
+ dest[n * dstride] = count[n] + 1;
+ if (*base >= maxval)
+#endif
+ {
+ fast = 1;
+ maxval = *base;
+ for (n = 0; n < rank; n++)
+ dest[n * dstride] = count[n] + 1;
+ break;
+ }
+ }
+ base += sstride[0];
+ mbase += mstride[0];
+ }
+ while (++count[0] != extent[0]);
+ if (likely (fast))
+ continue;
+ }
+ else do
+ {
+ if (*mbase && *base > maxval)
+ {
+ maxval = *base;
+ for (n = 0; n < rank; n++)
+ dest[n * dstride] = count[n] + 1;
+ }
+ /* Implementation end. */
+ /* Advance to the next element. */
+ base += sstride[0];
+ mbase += mstride[0];
+ }
+ while (++count[0] != extent[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 proabably not worth it. */
- base -= sstride[n] * extent[n];
- mbase -= mstride[n] * extent[n];
- n++;
- if (n == rank)
- {
- /* Break out of the loop. */
- base = NULL;
- break;
- }
- else
- {
- count[n]++;
- base += sstride[n];
- mbase += mstride[n];
- }
- }
+ do
+ {
+ /* 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];
+ mbase -= mstride[n] * extent[n];
+ n++;
+ if (n == rank)
+ {
+ /* Break out of the loop. */
+ base = NULL;
+ break;
+ }
+ else
+ {
+ count[n]++;
+ base += sstride[n];
+ mbase += mstride[n];
+ }
+ }
+ while (count[n] == extent[n]);
}
}
}
+
+extern void smaxloc0_4_r10 (gfc_array_i4 * const restrict,
+ gfc_array_r10 * const restrict, GFC_LOGICAL_4 *);
+export_proto(smaxloc0_4_r10);
+
+void
+smaxloc0_4_r10 (gfc_array_i4 * const restrict retarray,
+ gfc_array_r10 * const restrict array,
+ GFC_LOGICAL_4 * mask)
+{
+ index_type rank;
+ index_type dstride;
+ index_type n;
+ GFC_INTEGER_4 *dest;
+
+ if (*mask)
+ {
+ maxloc0_4_r10 (retarray, array);
+ return;
+ }
+
+ rank = GFC_DESCRIPTOR_RANK (array);
+
+ if (rank <= 0)
+ runtime_error ("Rank of array needs to be > 0");
+
+ if (retarray->data == NULL)
+ {
+ GFC_DIMENSION_SET(retarray->dim[0], 0, rank-1, 1);
+ retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1;
+ retarray->offset = 0;
+ retarray->data = internal_malloc_size (sizeof (GFC_INTEGER_4) * rank);
+ }
+ else if (unlikely (compile_options.bounds_check))
+ {
+ bounds_iforeach_return ((array_t *) retarray, (array_t *) array,
+ "MAXLOC");
+ }
+
+ dstride = GFC_DESCRIPTOR_STRIDE(retarray,0);
+ dest = retarray->data;
+ for (n = 0; n<rank; n++)
+ dest[n * dstride] = 0 ;
+}
#endif
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