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Simplify likely() implementation
author
Behdad Esfahbod
<behdad@behdad.org>
Tue, 11 May 2010 03:50:07 +0000
(23:50 -0400)
committer
Behdad Esfahbod
<behdad@behdad.org>
Tue, 11 May 2010 03:50:07 +0000
(23:50 -0400)
Shrinks .text by 1%!
src/hb-private.h
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diff --git
a/src/hb-private.h
b/src/hb-private.h
index
8a323de
..
866ee59
100644
(file)
--- a/
src/hb-private.h
+++ b/
src/hb-private.h
@@
-85,15
+85,7
@@
#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
-#define _HB_BOOLEAN_EXPR(expr) \
- __extension__ ({ \
- int _hb_boolean_var_; \
- if (expr) \
- _hb_boolean_var_ = 1; \
- else \
- _hb_boolean_var_ = 0; \
- _hb_boolean_var_; \
- })
+#define _HB_BOOLEAN_EXPR(expr) ((expr) ? 1 : 0)
#define likely(expr) (__builtin_expect (_HB_BOOLEAN_EXPR(expr), 1))
#define unlikely(expr) (__builtin_expect (_HB_BOOLEAN_EXPR(expr), 0))
#else