mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-07 07:00:25 +08:00
1d6b7f396a
2007-09-16 Paul Thomas <pault@gcc.gnu.org> PR fortran/29396 PR fortran/29606 PR fortran/30625 PR fortran/30871 * trans.h : Add extra argument to gfc_build_array_ref. Rename gfc_conv_aliased_arg to gfc_conv_subref_array_arg. Move prototype of is_aliased_array to gfortran.h and rename it gfc_is_subref_array. Add field span to lang_decl, add a new decl lang specific flag accessed by GFC_DECL_SUBREF_ARRAY_P and a new type flag GFC_DECL_SUBREF_ARRAY_P. * trans.c (gfc_build_array_ref): Add the new argument, decl. If this is a subreference array pointer, use the lang_decl field 'span' to calculate the offset in bytes and use pointer arithmetic to address the element. * trans-array.c (gfc_conv_scalarized_array_ref, gfc_conv_array_ref): Add the backend declaration as the third field, if it is likely to be a subreference array pointer. (gfc_conv_descriptor_dimension, gfc_trans_array_ctor_element, gfc_trans_array_constructor_element, structure_alloc_comps, gfc_conv_array_index_offset): For all other references to gfc_build_array_ref, set the third argument to NULL. (gfc_get_dataptr_offset): New function. (gfc_conv_expr_descriptor): If the rhs of a pointer assignment is a subreference array, then calculate the offset to the subreference of the first element and set the descriptor data pointer to this, using gfc_get_dataptr_offset. trans-expr.c (gfc_get_expr_charlen): Use the expression for the character length for a character subreference. (gfc_conv_substring, gfc_conv_subref_array_arg): Add NULL for third argument in call to gfc_build_array_ref. (gfc_conv_aliased_arg): Rename to gfc_conv_subref_array_arg. (is_aliased_array): Remove. (gfc_conv_function_call): Change reference to is_aliased_array to gfc_is_subref_array and reference to gfc_conv_aliased_arg to gfc_conv_subref_array_arg. (gfc_trans_pointer_assignment): Add the array element length to the lang_decl 'span' field. * gfortran.h : Add subref_array_pointer to symbol_attribute and add the prototype for gfc_is_subref_array. * trans-stmt.c : Add NULL for third argument in all references to gfc_build_array_ref. * expr.c (gfc_is_subref_array): Renamed is_aliased_array. If this is a subreference array pointer, return true. (gfc_check_pointer_assign): If the rhs is a subreference array, set the lhs subreference_array_pointer attribute. * trans-decl.c (gfc_get_symbol_decl): Allocate the lang_decl field if the symbol is a subreference array pointer and set an initial value of zero for the 'span' field. * trans-io.c (set_internal_unit): Refer to is_subref_array and gfc_conv_subref_array_arg. (nml_get_addr_expr): Add NULL third argument to gfc_build_array_ref. (gfc_trans_transfer): Use the scalarizer for a subreference array. 2007-09-16 Paul Thomas <pault@gcc.gnu.org> PR fortran/29396 PR fortran/29606 PR fortran/30625 PR fortran/30871 * gfortran.dg/subref_array_pointer_1.f90: New test. * gfortran.dg/subref_array_pointer_2.f90: New test. From-SVN: r128523
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.