https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71002
--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Wed Jun 29 07:30:31 2016 New Revision: 237839 URL: https://gcc.gnu.org/viewcvs?rev=237839&root=gcc&view=rev Log: 2016-06-29 Richard Biener <rguent...@suse.de> PR middle-end/71002 * alias.c (component_uses_parent_alias_set_from): Handle type punning through union accesses by using the union alias set. * gimple.c (gimple_get_alias_set): Remove union type punning case. c-family/ * c-common.c (c_common_get_alias_set): Remove union type punning case. fortran/ * f95-lang.c (LANG_HOOKS_GET_ALIAS_SET): Remove (un-)define. (gfc_get_alias_set): Remove. * g++.dg/torture/pr71002.C: Adjust testcase. Modified: trunk/gcc/ChangeLog trunk/gcc/alias.c trunk/gcc/c-family/ChangeLog trunk/gcc/c-family/c-common.c trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/f95-lang.c trunk/gcc/gimple.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/torture/pr71002.C