[Bug fortran/78534] Use a larger integer type for character lengths on 64-bit targets

[jb at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78534

--- Comment #25 from Janne Blomqvist <jb at gcc dot gnu.org> ---
Author: jb
Date: Mon Jan 22 13:31:08 2018
New Revision: 256944

URL: https://gcc.gnu.org/viewcvs?rev=256944&root=gcc&view=rev
Log:
PR 78534, 83704 Large character lengths

This patch fixes various parts of the code to use a larger type than
int for the character length. Depending on the situation,
HOST_WIDE_INT, size_t, or gfc_charlen_t is appropriate.

Regtested on x86_64-pc-linux-gnu and i686-pc-linux-gnu.

gcc/fortran/ChangeLog:

2018-01-22  Janne Blomqvist  <j...@gcc.gnu.org>

        PR 78534
        PR 83704
        * arith.c (gfc_arith_concat): Use size_t for string length.
        (gfc_compare_string): Likewise.
        (gfc_compare_with_Cstring): Likewise.
        * array.c (gfc_resolve_character_array_constructor): Use
        HOST_WIDE_INT, gfc_mpz_get_hwi.
        * check.c (gfc_check_fe_runtime_error): Use size_t.
        * data.c (create_character_initializer): Use HOST_WIDE_INT,
        gfc_extract_hwi.
        * decl.c (gfc_set_constant_character_len): Use gfc_charlen_t.
        (add_init_expr_to_sym): Use HOST_WIDE_INT.
        * expr.c (gfc_build_init_expr): Use HOST_WIDE_INT,
        gfc_extract_hwi.
        (gfc_apply_init): Likewise.
        * match.h (gfc_set_constant_character_len): Update prototype.
        * primary.c (match_string_constant): Use size_t.
        * resolve.c (resolve_ordinary_assign): Use HOST_WIDE_INT,
        gfc_mpz_get_hwi.
        * simplify.c (init_result_expr): Likewise.
        (gfc_simplify_len_trim): Use size_t.
        * target-memory.c (gfc_encode_character): Use size_t.
        (gfc_target_encode_expr): Use HOST_WIDE_INT, gfc_mpz_get_hwi.
        (interpret_array): Use size_t.
        (gfc_interpret_character): Likewise.
        * target-memory.h (gfc_encode_character): Update prototype.
        (gfc_interpret_character): Likewise.
        (gfc_target_interpret_expr): Likewise.
        * trans-const.c (gfc_build_string_const): Use size_t for length
        argument.
        (gfc_build_wide_string_const): Likewise.
        * trans-const.h (gfc_build_string_const): Likewise.
        (gfc_build_wide_string_const): Likewise.

2018-01-22  Janne Blomqvist  <j...@gcc.gnu.org>

        PR 78534
        PR 83704
        * gfortran.dg/string_1.f90: Remove printing the length.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/arith.c
    trunk/gcc/fortran/array.c
    trunk/gcc/fortran/check.c
    trunk/gcc/fortran/data.c
    trunk/gcc/fortran/decl.c
    trunk/gcc/fortran/expr.c
    trunk/gcc/fortran/match.h
    trunk/gcc/fortran/primary.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/simplify.c
    trunk/gcc/fortran/target-memory.c
    trunk/gcc/fortran/target-memory.h
    trunk/gcc/fortran/trans-const.c
    trunk/gcc/fortran/trans-const.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/string_1.f90