From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Mon, 21 Jun 2021 00:44:59 +0000 (-0700)
Subject: mark verbose reporting in gvParseArgs as unlikely
X-Git-Tag: 2.48.0~30^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5e5577bd6d38dd0b7f45b318e10169796e832319;p=graphviz

mark verbose reporting in gvParseArgs as unlikely

This indicates to the compiler it should predict the condition of this branch as
false in its optimization choices.
---

diff --git a/lib/common/args.c b/lib/common/args.c
index 9ee5291c0..1a603fe76 100644
--- a/lib/common/args.c
+++ b/lib/common/args.c
@@ -17,6 +17,7 @@
  * Needs to be fixed before layout engines can be plugins.
  */
 
+#include <cgraph/likely.h>
 #include <ctype.h>
 #include <common/render.h>
 #include <fdpgen/tlayout.h>
@@ -279,7 +280,7 @@ int gvParseArgs(GVC_t *gvc, int argc, char** argv)
 	return (1-argc);
     if ((rv = dotneato_args_initialize(gvc, argc, argv)))
 	return rv;
-    if (Verbose)
+    if (UNLIKELY(Verbose))
 	gvplugin_write_status(gvc);
     return 0;
 }