[Bug middle-end/82089] emit_cstore sign-extends BImode result for STORE_FLAG_VALUE == 1

[ams at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82089

--- Comment #7 from Andrew Stubbs <ams at gcc dot gnu.org> ---
Author: ams
Date: Thu Sep 27 11:15:48 2018
New Revision: 264666

URL: https://gcc.gnu.org/viewcvs?rev=264666&root=gcc&view=rev
Log:
[pr82089] Don't sign-extend SFV 1 in BImode

This is an update of the patch posted to PR82089 long ago.  We ran into the
same bug on GCN, so we need this fixed as part of this series.

2018-09-27  Andrew Stubbs  <a...@codesourcery.com>
            Tom de Vries  <t...@codesourcery.com>

        PR 82089

        gcc/
        * expmed.c (emit_cstore): Fix handling of result_mode == BImode and
        STORE_FLAG_VALUE == 1.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expmed.c