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| author | Alan Coopersmith <alan.coopersmith@oracle.com> | 2013-04-19 14:30:40 -0700 |
|---|---|---|
| committer | Ulrich Sibiller <uli42@gmx.de> | 2016-10-10 22:58:33 +0200 |
| commit | 670b8ef648e4bce8369fbf2dfbf4370e4e2d36be (patch) | |
| tree | bc51858c4ddc5923bb5353dcbc19ab1b18f592c5 | |
| parent | 6165dafdae0eaac74e46ffffb1ea85fcaa7a96a4 (diff) | |
| download | nx-libs-670b8ef648e4bce8369fbf2dfbf4370e4e2d36be.tar.gz nx-libs-670b8ef648e4bce8369fbf2dfbf4370e4e2d36be.tar.bz2 nx-libs-670b8ef648e4bce8369fbf2dfbf4370e4e2d36be.zip | |
Give GNU & Solaris Studio compilers hints about XEatData branches
Try to offset the cost of all the recent checks we've added by giving
the compiler a hint that the branches that involve us eating data
are less likely to be used than the ones that process it.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
| -rw-r--r-- | nx-X11/lib/X11/Xlibint.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/nx-X11/lib/X11/Xlibint.h b/nx-X11/lib/X11/Xlibint.h index cd972cfae..56c1f7b5e 100644 --- a/nx-X11/lib/X11/Xlibint.h +++ b/nx-X11/lib/X11/Xlibint.h @@ -870,6 +870,15 @@ typedef struct _XExten { /* private to extension mechanism */ struct _XExten *next_flush; /* next in list of those with flushes */ } _XExtension; +/* Temporary definition until we can depend on an xproto release with it */ +#ifdef _X_COLD +# define _XLIB_COLD _X_COLD +#elif defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 403) /* 4.3+ */ +# define _XLIB_COLD __attribute__((__cold__)) +#else +# define _XLIB_COLD /* nothing */ +#endif + /* extension hooks */ #ifdef DataRoutineIsProcedure @@ -892,11 +901,14 @@ extern int (*_XErrorFunction)( extern void _XEatData( Display* /* dpy */, unsigned long /* n */ -); +) _XLIB_COLD; extern void _XEatDataWords( Display* /* dpy */, unsigned long /* n */ -); +) _XLIB_COLD; +#if defined(__SUNPRO_C) /* Studio compiler alternative to "cold" attribute */ +# pragma rarely_called(_XEatData, _XEatDataWords) +#endif extern char *_XAllocScratch( Display* /* dpy */, unsigned long /* nbytes */ |