http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55591
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |burnus at gcc dot gnu.org
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-12-04
17:05:45 UTC ---
Untested (but successfully compiled) patch:
--- a/gcc/fortran/options.c
+++ b/gcc/fortran/options.c
@@ -170,4 +170,6 @@ gfc_init_options (unsigned int decoded_options_count,
set_default_std_flags ();
+ flag_strict_aliasing = -1;
+
/* Initialize cpp-related options. */
gfc_cpp_init_options (decoded_options_count, decoded_options);
@@ -275,4 +277,8 @@ gfc_post_options (const char **pfilename)
gfc_option.flag_whole_file = 1;
+ /* By default use strict-aliasing semantics. */
+ if (flag_strict_aliasing == -1)
+ flag_strict_aliasing = 1;
+
/* Fortran allows associative math - but we cannot reassociate if
we want traps or signed zeros. Cf. also flag_protect_parens. */
