https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69708
--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> --- Author: jamborm Date: Wed May 18 16:41:19 2016 New Revision: 236417 URL: https://gcc.gnu.org/viewcvs?rev=236417&root=gcc&view=rev Log: Const parameters are always unmodified 2016-05-18 Martin Jambor <mjam...@suse.cz> PR ipa/69708 * ipa-prop.c (parm_preserved_before_stmt_p): Return true for loads from TREE_READONLY parameters. Modified: trunk/gcc/ChangeLog trunk/gcc/ipa-prop.c