From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/libgfortran/generated/reshape_r4.c | 360 +++++++++++++++++++++++++++++ 1 file changed, 360 insertions(+) create mode 100644 gcc-4.9/libgfortran/generated/reshape_r4.c (limited to 'gcc-4.9/libgfortran/generated/reshape_r4.c') diff --git a/gcc-4.9/libgfortran/generated/reshape_r4.c b/gcc-4.9/libgfortran/generated/reshape_r4.c new file mode 100644 index 000000000..d7ca64f5e --- /dev/null +++ b/gcc-4.9/libgfortran/generated/reshape_r4.c @@ -0,0 +1,360 @@ +/* Implementation of the RESHAPE intrinsic + Copyright (C) 2002-2014 Free Software Foundation, Inc. + Contributed by Paul Brook + +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 +. */ + +#include "libgfortran.h" +#include +#include + + +#if defined (HAVE_GFC_REAL_4) + +typedef GFC_ARRAY_DESCRIPTOR(1, index_type) shape_type; + + +extern void reshape_r4 (gfc_array_r4 * const restrict, + gfc_array_r4 * const restrict, + shape_type * const restrict, + gfc_array_r4 * const restrict, + shape_type * const restrict); +export_proto(reshape_r4); + +void +reshape_r4 (gfc_array_r4 * const restrict ret, + gfc_array_r4 * const restrict source, + shape_type * const restrict shape, + gfc_array_r4 * const restrict pad, + shape_type * const restrict order) +{ + /* r.* indicates the return array. */ + index_type rcount[GFC_MAX_DIMENSIONS]; + index_type rextent[GFC_MAX_DIMENSIONS]; + index_type rstride[GFC_MAX_DIMENSIONS]; + index_type rstride0; + index_type rdim; + index_type rsize; + index_type rs; + index_type rex; + GFC_REAL_4 *rptr; + /* s.* indicates the source array. */ + index_type scount[GFC_MAX_DIMENSIONS]; + index_type sextent[GFC_MAX_DIMENSIONS]; + index_type sstride[GFC_MAX_DIMENSIONS]; + index_type sstride0; + index_type sdim; + index_type ssize; + const GFC_REAL_4 *sptr; + /* p.* indicates the pad array. */ + index_type pcount[GFC_MAX_DIMENSIONS]; + index_type pextent[GFC_MAX_DIMENSIONS]; + index_type pstride[GFC_MAX_DIMENSIONS]; + index_type pdim; + index_type psize; + const GFC_REAL_4 *pptr; + + const GFC_REAL_4 *src; + int n; + int dim; + int sempty, pempty, shape_empty; + index_type shape_data[GFC_MAX_DIMENSIONS]; + + rdim = GFC_DESCRIPTOR_EXTENT(shape,0); + if (rdim != GFC_DESCRIPTOR_RANK(ret)) + runtime_error("rank of return array incorrect in RESHAPE intrinsic"); + + shape_empty = 0; + + for (n = 0; n < rdim; n++) + { + shape_data[n] = shape->base_addr[n * GFC_DESCRIPTOR_STRIDE(shape,0)]; + if (shape_data[n] <= 0) + { + shape_data[n] = 0; + shape_empty = 1; + } + } + + if (ret->base_addr == NULL) + { + index_type alloc_size; + + rs = 1; + for (n = 0; n < rdim; n++) + { + rex = shape_data[n]; + + GFC_DIMENSION_SET(ret->dim[n], 0, rex - 1, rs); + + rs *= rex; + } + ret->offset = 0; + + if (unlikely (rs < 1)) + alloc_size = 1; + else + alloc_size = rs * sizeof (GFC_REAL_4); + + ret->base_addr = xmalloc (alloc_size); + ret->dtype = (source->dtype & ~GFC_DTYPE_RANK_MASK) | rdim; + } + + if (shape_empty) + return; + + if (pad) + { + pdim = GFC_DESCRIPTOR_RANK (pad); + psize = 1; + pempty = 0; + for (n = 0; n < pdim; n++) + { + pcount[n] = 0; + pstride[n] = GFC_DESCRIPTOR_STRIDE(pad,n); + pextent[n] = GFC_DESCRIPTOR_EXTENT(pad,n); + if (pextent[n] <= 0) + { + pempty = 1; + pextent[n] = 0; + } + + if (psize == pstride[n]) + psize *= pextent[n]; + else + psize = 0; + } + pptr = pad->base_addr; + } + else + { + pdim = 0; + psize = 1; + pempty = 1; + pptr = NULL; + } + + if (unlikely (compile_options.bounds_check)) + { + index_type ret_extent, source_extent; + + rs = 1; + for (n = 0; n < rdim; n++) + { + rs *= shape_data[n]; + ret_extent = GFC_DESCRIPTOR_EXTENT(ret,n); + if (ret_extent != shape_data[n]) + runtime_error("Incorrect extent in return value of RESHAPE" + " intrinsic in dimension %ld: is %ld," + " should be %ld", (long int) n+1, + (long int) ret_extent, (long int) shape_data[n]); + } + + source_extent = 1; + sdim = GFC_DESCRIPTOR_RANK (source); + for (n = 0; n < sdim; n++) + { + index_type se; + se = GFC_DESCRIPTOR_EXTENT(source,n); + source_extent *= se > 0 ? se : 0; + } + + if (rs > source_extent && (!pad || pempty)) + runtime_error("Incorrect size in SOURCE argument to RESHAPE" + " intrinsic: is %ld, should be %ld", + (long int) source_extent, (long int) rs); + + if (order) + { + int seen[GFC_MAX_DIMENSIONS]; + index_type v; + + for (n = 0; n < rdim; n++) + seen[n] = 0; + + for (n = 0; n < rdim; n++) + { + v = order->base_addr[n * GFC_DESCRIPTOR_STRIDE(order,0)] - 1; + + if (v < 0 || v >= rdim) + runtime_error("Value %ld out of range in ORDER argument" + " to RESHAPE intrinsic", (long int) v + 1); + + if (seen[v] != 0) + runtime_error("Duplicate value %ld in ORDER argument to" + " RESHAPE intrinsic", (long int) v + 1); + + seen[v] = 1; + } + } + } + + rsize = 1; + for (n = 0; n < rdim; n++) + { + if (order) + dim = order->base_addr[n * GFC_DESCRIPTOR_STRIDE(order,0)] - 1; + else + dim = n; + + rcount[n] = 0; + rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim); + rextent[n] = GFC_DESCRIPTOR_EXTENT(ret,dim); + if (rextent[n] < 0) + rextent[n] = 0; + + if (rextent[n] != shape_data[dim]) + runtime_error ("shape and target do not conform"); + + if (rsize == rstride[n]) + rsize *= rextent[n]; + else + rsize = 0; + if (rextent[n] <= 0) + return; + } + + sdim = GFC_DESCRIPTOR_RANK (source); + ssize = 1; + sempty = 0; + for (n = 0; n < sdim; n++) + { + scount[n] = 0; + sstride[n] = GFC_DESCRIPTOR_STRIDE(source,n); + sextent[n] = GFC_DESCRIPTOR_EXTENT(source,n); + if (sextent[n] <= 0) + { + sempty = 1; + sextent[n] = 0; + } + + if (ssize == sstride[n]) + ssize *= sextent[n]; + else + ssize = 0; + } + + if (rsize != 0 && ssize != 0 && psize != 0) + { + rsize *= sizeof (GFC_REAL_4); + ssize *= sizeof (GFC_REAL_4); + psize *= sizeof (GFC_REAL_4); + reshape_packed ((char *)ret->base_addr, rsize, (char *)source->base_addr, + ssize, pad ? (char *)pad->base_addr : NULL, psize); + return; + } + rptr = ret->base_addr; + src = sptr = source->base_addr; + rstride0 = rstride[0]; + sstride0 = sstride[0]; + + if (sempty && pempty) + abort (); + + if (sempty) + { + /* Pretend we are using the pad array the first time around, too. */ + src = pptr; + sptr = pptr; + sdim = pdim; + for (dim = 0; dim < pdim; dim++) + { + scount[dim] = pcount[dim]; + sextent[dim] = pextent[dim]; + sstride[dim] = pstride[dim]; + sstride0 = pstride[0]; + } + } + + while (rptr) + { + /* Select between the source and pad arrays. */ + *rptr = *src; + /* Advance to the next element. */ + rptr += rstride0; + src += sstride0; + rcount[0]++; + scount[0]++; + + /* Advance to the next destination element. */ + n = 0; + while (rcount[n] == rextent[n]) + { + /* When we get to the end of a dimension, reset it and increment + the next dimension. */ + rcount[n] = 0; + /* We could precalculate these products, but this is a less + frequently used path so probably not worth it. */ + rptr -= rstride[n] * rextent[n]; + n++; + if (n == rdim) + { + /* Break out of the loop. */ + rptr = NULL; + break; + } + else + { + rcount[n]++; + rptr += rstride[n]; + } + } + /* Advance to the next source element. */ + n = 0; + while (scount[n] == sextent[n]) + { + /* When we get to the end of a dimension, reset it and increment + the next dimension. */ + scount[n] = 0; + /* We could precalculate these products, but this is a less + frequently used path so probably not worth it. */ + src -= sstride[n] * sextent[n]; + n++; + if (n == sdim) + { + if (sptr && pad) + { + /* Switch to the pad array. */ + sptr = NULL; + sdim = pdim; + for (dim = 0; dim < pdim; dim++) + { + scount[dim] = pcount[dim]; + sextent[dim] = pextent[dim]; + sstride[dim] = pstride[dim]; + sstride0 = sstride[0]; + } + } + /* We now start again from the beginning of the pad array. */ + src = pptr; + break; + } + else + { + scount[n]++; + src += sstride[n]; + } + } + } +} + +#endif -- cgit v1.2.3