PR fortran/19239
* Makefile.in (fortran/trans-expr.o): Depend on dependency.h.
* dependency.h (gfc_ref_needs_temporary_p): Declare.
* dependency.c (gfc_ref_needs_temporary_p): New function.
(gfc_check_fncall_dependency): Use it instead of inlined check.
By so doing, take advantage of the fact that character substrings
within an array reference also need a temporary.
* trans.h (GFC_SS_VECTOR): Adjust comment.
* trans-array.c (gfc_free_ss): Remove GFC_SS_VECTOR case.
(gfc_set_vector_loop_bounds): New function.
(gfc_add_loop_ss_code): Call it after evaluating the subscripts of
a GFC_SS_SECTION. Deal with the GFC_SS_VECTOR case by evaluating
the vector expression and caching its descriptor for use within
the loop.
(gfc_conv_array_index_ref, gfc_conv_vector_array_index): Delete.
(gfc_conv_array_index_offset): Handle scalar, vector and range
dimensions as separate cases of a switch statement. In the vector
case, use the loop variable to calculate a vector index and use the
referenced element as the dimension's index. Perform bounds checking
on this final index.
(gfc_conv_section_upper_bound): Return null for vector indexes.
(gfc_conv_section_startstride): Give vector indexes a start value
of 0 and a stride of 1.
(gfc_conv_ss_startstride): Adjust for new GFC_SS_VECTOR representation.
(gfc_conv_expr_descriptor): Expand comments. Generalize the
handling of the !want_pointer && !direct_byref case. Use
gfc_ref_needs_temporary_p to decide whether the variable case
needs a temporary.
(gfc_walk_variable_expr): Handle DIMEN_VECTOR by creating a
GFC_SS_VECTOR index.
* trans-expr.c: Include dependency.h.
(gfc_trans_arrayfunc_assign): Fail if the target needs a temporary.
2005-09-09 Richard Sandiford <richard@codesourcery.com>
PR fortran/21104
* trans.h (gfc_interface_sym_mapping, gfc_interface_mapping): Moved
from trans-expr.c.
(gfc_init_interface_mapping, gfc_free_interface_mapping)
(gfc_add_interface_mapping, gfc_finish_interface_mapping)
(gfc_apply_interface_mapping): Declare.
* trans-array.h (gfc_set_loop_bounds_from_array_spec): Declare.
(gfc_trans_allocate_temp_array): Add pre and post block arguments.
* trans-array.c (gfc_set_loop_bounds_from_array_spec): New function.
(gfc_trans_allocate_array_storage): Replace loop argument with
separate pre and post blocks.
(gfc_trans_allocate_temp_array): Add pre and post block arguments.
Update call to gfc_trans_allocate_array_storage.
(gfc_trans_array_constructor, gfc_conv_loop_setup): Adjust for new
interface to gfc_trans_allocate_temp_array.
* trans-expr.c (gfc_interface_sym_mapping, gfc_interface_mapping):
Moved to trans.h.
(gfc_init_interface_mapping, gfc_free_interface_mapping)
(gfc_add_interface_mapping, gfc_finish_interface_mapping)
(gfc_apply_interface_mapping): Make extern.
(gfc_conv_function_call): Build an interface mapping for array
return values too. Call gfc_set_loop_bounds_from_array_spec.
Adjust call to gfc_trans_allocate_temp_array so that code is
added to SE rather than LOOP.
From-SVN: r104077
