http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55630
--- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> 2012-12-12 03:58:29 UTC --- Introduced by the following commit: Author: ebotcazou Date: Sat Oct 20 21:00:23 2012 New Revision: 192641 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192641 Log: PR rtl-optimization/54315 * calls.c (expand_call): Don't deal specifically with BLKmode values returned in naked registers. * expr.h (copy_blkmode_from_reg): Adjust prototype. * expr.c (copy_blkmode_from_reg): Rename first parameter into TARGET and make it required. Assert that SRCREG hasn't BLKmode. Add a couple of short-circuits for common cases and be prepared for sub-word registers. (expand_assignment): Call copy_blkmode_from_reg for BLKmode values returned in naked registers. (store_expr): Likewise. (store_field): Likewise. Modified: trunk/gcc/ChangeLog trunk/gcc/calls.c trunk/gcc/expr.c trunk/gcc/expr.h