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trans-decl.c (gfc_get_extern_function_decl): Set DECL_IS_PURE only for functions.

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* trans-decl.c (gfc_get_extern_function_decl): Set DECL_IS_PURE
	only for functions.
	(gfc_build_function_decl): Likewise.

From-SVN: r82132
This commit is contained in:
Tobias Schlüter 2004-05-22 13:31:07 +00:00 committed by Paul Brook
parent 21fdfcc12c
commit b7e6a6b3f5
2 changed files with 18 additions and 4 deletions
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6
gcc/fortran/ChangeLog
View File

@ -1,3 +1,9 @@
2004-05-22 Tobias Schlüter <tobias.schlueter@physik.uni-muenchen.de>
* trans-decl.c (gfc_get_extern_function_decl): Set DECL_IS_PURE
only for functions.
(gfc_build_function_decl): Likewise.
2004-05-22 Steven G. Kargl <kargls@comcast.net>
* check.c (gfc_check_system_clock): New function.

12
gcc/fortran/trans-decl.c
View File

@ -951,9 +951,13 @@ gfc_get_extern_function_decl (gfc_symbol * sym)
sense. */
if (sym->attr.pure || sym->attr.elemental)
{
if (sym->attr.function)
DECL_IS_PURE (fndecl) = 1;
/* TODO: check if pure/elemental procedures can have INTENT(OUT) parameters.
TREE_SIDE_EFFECTS (fndecl) = 0;*/
/* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
parameters and don't use alternate returns (is this
allowed?). In that case, calls to them are meaningless, and
can be optimized away. See also in gfc_build_function_decl(). */
TREE_SIDE_EFFECTS (fndecl) = 0;
}
sym->backend_decl = fndecl;
@ -1060,6 +1064,10 @@ gfc_build_function_decl (gfc_symbol * sym)
sense. */
if (attr.pure || attr.elemental)
{
/* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
including a alternate return. In that case it can also be
marked as PURE. See also in gfc_get_extern_fucntion_decl(). */
if (attr.function)
DECL_IS_PURE (fndecl) = 1;
TREE_SIDE_EFFECTS (fndecl) = 0;
}