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author | Dan Albert <danalbert@google.com> | 2016-02-24 13:48:45 -0800 |
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committer | Dan Albert <danalbert@google.com> | 2016-02-24 13:51:18 -0800 |
commit | b9de1157289455b0ca26daff519d4a0ddcd1fa13 (patch) | |
tree | 4c56cc0a34b91f17033a40a455f26652304f7b8d /gcc-4.8.3/libgfortran/generated/in_pack_r4.c | |
parent | 098157a754787181cfa10e71325832448ddcea98 (diff) | |
download | toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.tar.gz toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.tar.bz2 toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.zip |
Update 4.8.1 to 4.8.3.
My previous drop was the wrong version. The platform mingw is
currently using 4.8.3, not 4.8.1 (not sure how I got that wrong).
From ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2.
Bug: http://b/26523949
Change-Id: Id85f1bdcbbaf78c7d0b5a69e74c798a08f341c35
Diffstat (limited to 'gcc-4.8.3/libgfortran/generated/in_pack_r4.c')
-rw-r--r-- | gcc-4.8.3/libgfortran/generated/in_pack_r4.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/gcc-4.8.3/libgfortran/generated/in_pack_r4.c b/gcc-4.8.3/libgfortran/generated/in_pack_r4.c new file mode 100644 index 000000000..f34f0affc --- /dev/null +++ b/gcc-4.8.3/libgfortran/generated/in_pack_r4.c @@ -0,0 +1,119 @@ +/* Helper function for repacking arrays. + Copyright (C) 2003-2013 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" +#include <stdlib.h> +#include <assert.h> + + +#if defined (HAVE_GFC_REAL_4) + +/* Allocates a block of memory with internal_malloc if the array needs + repacking. */ + +GFC_REAL_4 * +internal_pack_r4 (gfc_array_r4 * source) +{ + index_type count[GFC_MAX_DIMENSIONS]; + index_type extent[GFC_MAX_DIMENSIONS]; + index_type stride[GFC_MAX_DIMENSIONS]; + index_type stride0; + index_type dim; + index_type ssize; + const GFC_REAL_4 *src; + GFC_REAL_4 * restrict dest; + GFC_REAL_4 *destptr; + int n; + int packed; + + /* TODO: Investigate how we can figure out if this is a temporary + since the stride=0 thing has been removed from the frontend. */ + + dim = GFC_DESCRIPTOR_RANK (source); + ssize = 1; + packed = 1; + for (n = 0; n < dim; n++) + { + count[n] = 0; + stride[n] = GFC_DESCRIPTOR_STRIDE(source,n); + extent[n] = GFC_DESCRIPTOR_EXTENT(source,n); + if (extent[n] <= 0) + { + /* Do nothing. */ + packed = 1; + break; + } + + if (ssize != stride[n]) + packed = 0; + + ssize *= extent[n]; + } + + if (packed) + return source->base_addr; + + /* Allocate storage for the destination. */ + destptr = (GFC_REAL_4 *)xmalloc (ssize * sizeof (GFC_REAL_4)); + dest = destptr; + src = source->base_addr; + stride0 = stride[0]; + + + while (src) + { + /* Copy the data. */ + *(dest++) = *src; + /* Advance to the next element. */ + src += stride0; + count[0]++; + /* Advance to the next source element. */ + 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. */ + src -= stride[n] * extent[n]; + n++; + if (n == dim) + { + src = NULL; + break; + } + else + { + count[n]++; + src += stride[n]; + } + } + } + return destptr; +} + +#endif + |