From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2119) id 7BC2E38515EE; Tue, 15 Jun 2021 16:43:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7BC2E38515EE MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Jeff Law To: gcc-cvs@gcc.gnu.org Subject: [gcc r12-1485] Minor improvement to compare elimination X-Act-Checkin: gcc X-Git-Author: Jeff Law X-Git-Refname: refs/heads/master X-Git-Oldrev: 4602714382f7a4603290b1ceb3121d9187debdb9 X-Git-Newrev: 6d43ec50966cafb339eb6a370a5d767a24f673e1 Message-Id: <20210615164352.7BC2E38515EE@sourceware.org> Date: Tue, 15 Jun 2021 16:43:52 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jun 2021 16:43:52 -0000 https://gcc.gnu.org/g:6d43ec50966cafb339eb6a370a5d767a24f673e1 commit r12-1485-g6d43ec50966cafb339eb6a370a5d767a24f673e1 Author: Jeff Law Date: Tue Jun 15 12:42:42 2021 -0400 Minor improvement to compare elimination gcc/ * compare-elim.c (try_eliminate_compare): Run DCE to clean things up before eliminating comparisons. Diff: --- gcc/compare-elim.c | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/compare-elim.c b/gcc/compare-elim.c index 85085cd6973..607eadc3d96 100644 --- a/gcc/compare-elim.c +++ b/gcc/compare-elim.c @@ -906,6 +906,7 @@ try_eliminate_compare (struct comparison *cmp) static unsigned int execute_compare_elim_after_reload (void) { + df_set_flags (DF_LR_RUN_DCE); df_analyze (); gcc_checking_assert (!all_compares.exists ());