From patchwork Tue Jun 18 20:32:57 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Anholt X-Patchwork-Id: 2744971 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 479729F39E for ; Tue, 18 Jun 2013 20:37:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5B62620222 for ; Tue, 18 Jun 2013 20:37:01 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id EE16120211 for ; Tue, 18 Jun 2013 20:36:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D87B1E6117 for ; Tue, 18 Jun 2013 13:36:59 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from annarchy.freedesktop.org (annarchy.freedesktop.org [131.252.210.176]) by gabe.freedesktop.org (Postfix) with ESMTP id 50363E626B; Tue, 18 Jun 2013 13:32:58 -0700 (PDT) Received: from eliezer.anholt.net (annarchy.freedesktop.org [127.0.0.1]) by annarchy.freedesktop.org (Postfix) with ESMTP id 44FA661339; Tue, 18 Jun 2013 13:32:58 -0700 (PDT) Received: by eliezer.anholt.net (Postfix, from userid 1000) id 62D75E6344E; Tue, 18 Jun 2013 13:32:57 -0700 (PDT) From: Eric Anholt To: intel-gfx@lists.freedesktop.org Date: Tue, 18 Jun 2013 13:32:57 -0700 Message-Id: <1371587577-10003-5-git-send-email-eric@anholt.net> X-Mailer: git-send-email 1.8.3.rc0 In-Reply-To: <1371587577-10003-1-git-send-email-eric@anholt.net> References: <1371587577-10003-1-git-send-email-eric@anholt.net> Subject: [Intel-gfx] [PATCH 5/5] intel: Mark checks for debug printing as unlikely. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There is a very tiny change (-120 bytes) in compiled code size as a result. --- intel/intel_bufmgr_gem.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c index b72a30b..ee73857 100644 --- a/intel/intel_bufmgr_gem.c +++ b/intel/intel_bufmgr_gem.c @@ -76,8 +76,18 @@ #define VG_CLEAR(s) VG(memset(&s, 0, sizeof(s))) +#ifndef likely +# ifdef __GNUC__ +# define likely(x) __builtin_expect(!!(x), 1) +# define unlikely(x) __builtin_expect(!!(x), 0) +# else +# define likely(x) (x) +# define unlikely(x) (x) +# endif +#endif + #define DBG(...) do { \ - if (bufmgr_gem->bufmgr.debug) \ + if (unlikely(bufmgr_gem->bufmgr.debug)) \ fprintf(stderr, __VA_ARGS__); \ } while (0)