From 11977fab546da35d579ebe285e3c26864007805e Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Tue, 13 Dec 2011 21:00:05 -0500 Subject: xace: ricer tuning for XaceHook gcc doesn't want to hoist the check for XaceHooks[hook] != NULL above the varargs code for some reason, so do it ourselves. Before: 40000000 trep @ 0.0010 msec (1050420.2/sec): PutImage 10x10 square 60000000 trep @ 0.0005 msec (1921147.6/sec): ShmPutImage 10x10 square After: 40000000 trep @ 0.0009 msec (1087458.5/sec): PutImage 10x10 square 60000000 trep @ 0.0005 msec (2012238.6/sec): ShmPutImage 10x10 square Reviewed-by: Alan Coopersmith Signed-off-by: Adam Jackson --- Xext/xace.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Xext/xace.c b/Xext/xace.c index c757cad05..ef69fe363 100644 --- a/Xext/xace.c +++ b/Xext/xace.c @@ -101,6 +101,10 @@ int XaceHook(int hook, ...) } u; int *prv = NULL; /* points to return value from callback */ va_list ap; /* argument list */ + + if (!XaceHooks[hook]) + return Success; + va_start(ap, hook); /* Marshal arguments for passing to callback. -- cgit v1.2.3