void
pack_i1 (gfc_array_i1 *ret, const gfc_array_i1 *array,
const gfc_array_l1 *mask, const gfc_array_i1 *vector)
{
/* r.* indicates the return array. */
index_type rstride0;
GFC_INTEGER_1 * restrict rptr;
/* s.* indicates the source array. */
index_type sstride[GFC_MAX_DIMENSIONS];
index_type sstride0;
const GFC_INTEGER_1 *sptr;
/* m.* indicates the mask array. */
index_type mstride[GFC_MAX_DIMENSIONS];
index_type mstride0;
const GFC_LOGICAL_1 *mptr;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
int zero_sized;
index_type n;
index_type dim;
index_type nelem;
index_type total;
int mask_kind;
dim = GFC_DESCRIPTOR_RANK (array);
mptr = mask->base_addr;
/* Use the same loop for all logical types, by using GFC_LOGICAL_1
and using shifting to address size and endian issues. */
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
)
{
/* Do not convert a NULL pointer as we use test for NULL below. */
if (mptr)
mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind);
}
else
runtime_error ("Funny sized logical array");
zero_sized = 0;
for (n = 0; n < dim; n++)
{
count[n] = 0;
extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
if (extent[n] <= 0)
zero_sized = 1;
sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n);
}
if (sstride[0] == 0)
sstride[0] = 1;
if (mstride[0] == 0)
mstride[0] = mask_kind;
if (zero_sized)
sptr = NULL;
else
sptr = array->base_addr;
if (ret->base_addr == NULL || unlikely (compile_options.bounds_check))
{
/* Count the elements, either for allocating memory or
for bounds checking. */
if (vector != NULL)
{
/* The return array will have as many
elements as there are in VECTOR. */
total = GFC_DESCRIPTOR_EXTENT(vector,0);
if (total < 0)
{
total = 0;
vector = NULL;
}
}
else
{
/* We have to count the true elements in MASK. */
total = count_0 (mask);
}
if (ret->base_addr == NULL)
{
/* Setup the array descriptor. */
GFC_DIMENSION_SET(ret->dim[0], 0, total-1, 1);
ret->offset = 0;
/* xmalloc allocates a single byte for zero size. */
ret->base_addr = xmalloc (sizeof (GFC_INTEGER_1) * total);
if (total == 0)
return;
}
else
{
/* We come here because of range checking. */
index_type ret_extent;
ret_extent = GFC_DESCRIPTOR_EXTENT(ret,0);
if (total != ret_extent)
runtime_error ("Incorrect extent in return value of PACK intrinsic;"
" is %ld, should be %ld", (long int) total,
(long int) ret_extent);
}
}
rstride0 = GFC_DESCRIPTOR_STRIDE(ret,0);
if (rstride0 == 0)
rstride0 = 1;
sstride0 = sstride[0];
mstride0 = mstride[0];
rptr = ret->base_addr;
while (sptr && mptr)
{
/* Test this element. */
if (*mptr)
{
/* Add it. */
*rptr = *sptr;
rptr += rstride0;
}
/* Advance to the next element. */
sptr += sstride0;
mptr += mstride0;
count[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 probably not worth it. */
sptr -= sstride[n] * extent[n];
mptr -= mstride[n] * extent[n];
n++;
if (n >= dim)
{
/* Break out of the loop. */
sptr = NULL;
break;
}
else
{
count[n]++;
sptr += sstride[n];
mptr += mstride[n];
}
}
}
/* Add any remaining elements from VECTOR. */
if (vector)
{
n = GFC_DESCRIPTOR_EXTENT(vector,0);
nelem = ((rptr - ret->base_addr) / rstride0);
if (n > nelem)
{
sstride0 = GFC_DESCRIPTOR_STRIDE(vector,0);
if (sstride0 == 0)
sstride0 = 1;
sptr = vector->base_addr + sstride0 * nelem;
n -= nelem;
while (n--)
{
*rptr = *sptr;
rptr += rstride0;
sptr += sstride0;
}
}
}
}
void
unpack0_c16 (gfc_array_c16 *ret, const gfc_array_c16 *vector,
const gfc_array_l1 *mask, const GFC_COMPLEX_16 *fptr)
{
/* r.* indicates the return array. */
index_type rstride[GFC_MAX_DIMENSIONS];
index_type rstride0;
index_type rs;
GFC_COMPLEX_16 * restrict rptr;
/* v.* indicates the vector array. */
index_type vstride0;
GFC_COMPLEX_16 *vptr;
/* Value for field, this is constant. */
const GFC_COMPLEX_16 fval = *fptr;
/* m.* indicates the mask array. */
index_type mstride[GFC_MAX_DIMENSIONS];
index_type mstride0;
const GFC_LOGICAL_1 *mptr;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type n;
index_type dim;
int empty;
int mask_kind;
empty = 0;
mptr = mask->data;
/* Use the same loop for all logical types, by using GFC_LOGICAL_1
and using shifting to address size and endian issues. */
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
)
{
/* Do not convert a NULL pointer as we use test for NULL below. */
if (mptr)
mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind);
}
else
runtime_error ("Funny sized logical array");
if (ret->data == NULL)
{
/* The front end has signalled that we need to populate the
return array descriptor. */
dim = GFC_DESCRIPTOR_RANK (mask);
rs = 1;
for (n = 0; n < dim; n++)
{
count[n] = 0;
ret->dim[n].stride = rs;
ret->dim[n].lbound = 0;
ret->dim[n].ubound = mask->dim[n].ubound - mask->dim[n].lbound;
extent[n] = ret->dim[n].ubound + 1;
empty = empty || extent[n] <= 0;
rstride[n] = ret->dim[n].stride;
mstride[n] = mask->dim[n].stride * mask_kind;
rs *= extent[n];
}
ret->offset = 0;
ret->data = internal_malloc_size (rs * sizeof (GFC_COMPLEX_16));
}
else
{
dim = GFC_DESCRIPTOR_RANK (ret);
for (n = 0; n < dim; n++)
{
count[n] = 0;
extent[n] = ret->dim[n].ubound + 1 - ret->dim[n].lbound;
empty = empty || extent[n] <= 0;
rstride[n] = ret->dim[n].stride;
mstride[n] = mask->dim[n].stride * mask_kind;
}
if (rstride[0] == 0)
rstride[0] = 1;
}
if (empty)
return;
if (mstride[0] == 0)
mstride[0] = 1;
vstride0 = vector->dim[0].stride;
if (vstride0 == 0)
vstride0 = 1;
rstride0 = rstride[0];
mstride0 = mstride[0];
rptr = ret->data;
vptr = vector->data;
while (rptr)
{
if (*mptr)
{
/* From vector. */
*rptr = *vptr;
vptr += vstride0;
}
else
{
/* From field. */
*rptr = fval;
}
/* Advance to the next element. */
rptr += rstride0;
mptr += mstride0;
count[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 probably not worth it. */
rptr -= rstride[n] * extent[n];
mptr -= mstride[n] * extent[n];
n++;
if (n >= dim)
{
/* Break out of the loop. */
rptr = NULL;
break;
}
else
{
count[n]++;
rptr += rstride[n];
mptr += mstride[n];
}
}
}
}
void
pack_r16 (gfc_array_r16 *ret, const gfc_array_r16 *array,
const gfc_array_l1 *mask, const gfc_array_r16 *vector)
{
/* r.* indicates the return array. */
index_type rstride0;
GFC_REAL_16 * restrict rptr;
/* s.* indicates the source array. */
index_type sstride[GFC_MAX_DIMENSIONS];
index_type sstride0;
const GFC_REAL_16 *sptr;
/* m.* indicates the mask array. */
index_type mstride[GFC_MAX_DIMENSIONS];
index_type mstride0;
const GFC_LOGICAL_1 *mptr;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
int zero_sized;
index_type n;
index_type dim;
index_type nelem;
index_type total;
int mask_kind;
dim = GFC_DESCRIPTOR_RANK (array);
mptr = mask->data;
/* Use the same loop for all logical types, by using GFC_LOGICAL_1
and using shifting to address size and endian issues. */
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
)
{
/* Do not convert a NULL pointer as we use test for NULL below. */
if (mptr)
mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind);
}
else
runtime_error ("Funny sized logical array");
zero_sized = 0;
for (n = 0; n < dim; n++)
{
count[n] = 0;
extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
if (extent[n] <= 0)
zero_sized = 1;
sstride[n] = array->dim[n].stride;
mstride[n] = mask->dim[n].stride * mask_kind;
}
if (sstride[0] == 0)
sstride[0] = 1;
if (mstride[0] == 0)
mstride[0] = mask_kind;
if (zero_sized)
sptr = NULL;
else
sptr = array->data;
if (ret->data == NULL || compile_options.bounds_check)
{
/* Count the elements, either for allocating memory or
for bounds checking. */
if (vector != NULL)
{
/* The return array will have as many
elements as there are in VECTOR. */
total = vector->dim[0].ubound + 1 - vector->dim[0].lbound;
if (total < 0)
{
total = 0;
vector = NULL;
}
}
else
{
/* We have to count the true elements in MASK. */
/* TODO: We could speed up pack easily in the case of only
few .TRUE. entries in MASK, by keeping track of where we
would be in the source array during the initial traversal
of MASK, and caching the pointers to those elements. Then,
supposed the number of elements is small enough, we would
only have to traverse the list, and copy those elements
into the result array. In the case of datatypes which fit
in one of the integer types we could also cache the
value instead of a pointer to it.
This approach might be bad from the point of view of
cache behavior in the case where our cache is not big
enough to hold all elements that have to be copied. */
const GFC_LOGICAL_1 *m = mptr;
total = 0;
if (zero_sized)
m = NULL;
while (m)
{
/* Test this element. */
if (*m)
total++;
/* Advance to the next element. */
m += mstride[0];
count[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 this product, but this is a
less frequently used path so probably not worth
it. */
m -= mstride[n] * extent[n];
n++;
if (n >= dim)
{
/* Break out of the loop. */
m = NULL;
break;
}
else
{
count[n]++;
m += mstride[n];
}
}
}
}
if (ret->data == NULL)
{
/* Setup the array descriptor. */
ret->dim[0].lbound = 0;
ret->dim[0].ubound = total - 1;
ret->dim[0].stride = 1;
ret->offset = 0;
if (total == 0)
{
/* In this case, nothing remains to be done. */
ret->data = internal_malloc_size (1);
return;
}
else
ret->data = internal_malloc_size (sizeof (GFC_REAL_16) * total);
}
else
{
/* We come here because of range checking. */
index_type ret_extent;
ret_extent = ret->dim[0].ubound + 1 - ret->dim[0].lbound;
if (total != ret_extent)
runtime_error ("Incorrect extent in return value of PACK intrinsic;"
" is %ld, should be %ld", (long int) total,
(long int) ret_extent);
}
}
rstride0 = ret->dim[0].stride;
if (rstride0 == 0)
rstride0 = 1;
sstride0 = sstride[0];
mstride0 = mstride[0];
rptr = ret->data;
while (sptr && mptr)
{
/* Test this element. */
if (*mptr)
{
/* Add it. */
*rptr = *sptr;
rptr += rstride0;
}
/* Advance to the next element. */
sptr += sstride0;
mptr += mstride0;
count[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 probably not worth it. */
sptr -= sstride[n] * extent[n];
mptr -= mstride[n] * extent[n];
n++;
if (n >= dim)
{
/* Break out of the loop. */
sptr = NULL;
break;
}
else
{
count[n]++;
sptr += sstride[n];
mptr += mstride[n];
}
}
}
/* Add any remaining elements from VECTOR. */
if (vector)
{
n = vector->dim[0].ubound + 1 - vector->dim[0].lbound;
nelem = ((rptr - ret->data) / rstride0);
if (n > nelem)
{
sstride0 = vector->dim[0].stride;
if (sstride0 == 0)
sstride0 = 1;
sptr = vector->data + sstride0 * nelem;
n -= nelem;
while (n--)
{
*rptr = *sptr;
rptr += rstride0;
sptr += sstride0;
}
}
}
}
static void
unpack_internal (gfc_array_char *ret, const gfc_array_char *vector,
const gfc_array_l1 *mask, const gfc_array_char *field,
index_type size, index_type fsize)
{
/* r.* indicates the return array. */
index_type rstride[GFC_MAX_DIMENSIONS];
index_type rstride0;
index_type rs;
char * restrict rptr;
/* v.* indicates the vector array. */
index_type vstride0;
char *vptr;
/* f.* indicates the field array. */
index_type fstride[GFC_MAX_DIMENSIONS];
index_type fstride0;
const char *fptr;
/* m.* indicates the mask array. */
index_type mstride[GFC_MAX_DIMENSIONS];
index_type mstride0;
const GFC_LOGICAL_1 *mptr;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type n;
index_type dim;
int empty;
int mask_kind;
empty = 0;
mptr = mask->data;
/* Use the same loop for all logical types, by using GFC_LOGICAL_1
and using shifting to address size and endian issues. */
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
)
{
/* Don't convert a NULL pointer as we use test for NULL below. */
if (mptr)
mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind);
}
else
runtime_error ("Funny sized logical array");
if (ret->data == NULL)
{
/* The front end has signalled that we need to populate the
return array descriptor. */
dim = GFC_DESCRIPTOR_RANK (mask);
rs = 1;
for (n = 0; n < dim; n++)
{
count[n] = 0;
GFC_DIMENSION_SET(ret->dim[n], 0,
GFC_DESCRIPTOR_EXTENT(mask,n) - 1, rs);
extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n);
empty = empty || extent[n] <= 0;
rstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(ret, n);
fstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(field, n);
mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n);
rs *= extent[n];
}
ret->offset = 0;
ret->data = internal_malloc_size (rs * size);
}
else
{
dim = GFC_DESCRIPTOR_RANK (ret);
for (n = 0; n < dim; n++)
{
count[n] = 0;
extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n);
empty = empty || extent[n] <= 0;
rstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(ret, n);
fstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(field, n);
mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n);
}
if (rstride[0] == 0)
rstride[0] = size;
}
if (empty)
return;
if (fstride[0] == 0)
fstride[0] = fsize;
if (mstride[0] == 0)
mstride[0] = 1;
vstride0 = GFC_DESCRIPTOR_STRIDE_BYTES(vector,0);
if (vstride0 == 0)
vstride0 = size;
rstride0 = rstride[0];
fstride0 = fstride[0];
mstride0 = mstride[0];
rptr = ret->data;
fptr = field->data;
vptr = vector->data;
while (rptr)
{
if (*mptr)
{
/* From vector. */
memcpy (rptr, vptr, size);
vptr += vstride0;
}
else
{
/* From field. */
memcpy (rptr, fptr, size);
}
/* Advance to the next element. */
rptr += rstride0;
fptr += fstride0;
mptr += mstride0;
count[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 probably not worth it. */
rptr -= rstride[n] * extent[n];
fptr -= fstride[n] * extent[n];
mptr -= mstride[n] * extent[n];
n++;
if (n >= dim)
{
/* Break out of the loop. */
rptr = NULL;
break;
}
else
{
count[n]++;
rptr += rstride[n];
fptr += fstride[n];
mptr += mstride[n];
}
}
}
}
index_type count_0 (const gfc_array_l1 * array)
{
const GFC_LOGICAL_1 * restrict base;
index_type rank;
int kind;
int continue_loop;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type sstride[GFC_MAX_DIMENSIONS];
index_type result;
index_type n;
rank = GFC_DESCRIPTOR_RANK (array);
kind = GFC_DESCRIPTOR_SIZE (array);
base = array->base_addr;
if (kind == 1 || kind == 2 || kind == 4 || kind == 8
#ifdef HAVE_GFC_LOGICAL_16
|| kind == 16
#endif
)
{
if (base)
base = GFOR_POINTER_TO_L1 (base, kind);
}
else
internal_error (NULL, "Funny sized logical array in count_0");
for (n = 0; n < rank; n++)
{
sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,n);
extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
count[n] = 0;
if (extent[n] <= 0)
return 0;
}
result = 0;
continue_loop = 1;
while (continue_loop)
{
if (*base)
result ++;
count[0]++;
base += sstride[0];
n = 0;
while (count[n] == extent[n])
{
count[n] = 0;
base -= sstride[n] * extent[n];
n++;
if (n == rank)
{
continue_loop = 0;
break;
}
else
{
count[n]++;
base += sstride[n];
}
}
}
return result;
}
