[vlc-devel] [PATCH 15/16] Change compiler options

glenvt18 glenvt18 at gmail.com
Fri Jun 26 13:20:09 CEST 2015


-funroll-loops adds 2-3% on x86 and 5% on arm with gcc-4.9.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f978a02..c3c9c7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ AC_ARG_ENABLE(debug, AC_HELP_STRING(--enable-debug, [Enable debug]), enable_debu
 if test "$enable_debug" = "yes" ; then
     GCC_CFLAGS="$CFLAGS -g -DDVBCSA_DEBUG -D_XOPEN_SOURCE=600"
 else
-    GCC_CFLAGS="$CFLAGS -O3 -fomit-frame-pointer -D_XOPEN_SOURCE=600"
+    GCC_CFLAGS="$CFLAGS -O3 -funroll-loops -fomit-frame-pointer -D_XOPEN_SOURCE=600"
 fi
 
 AC_ARG_ENABLE(uint32, AC_HELP_STRING(--enable-uint32, [Use native 32 bits integers for bitslice]), enable_uint32=$enableval, enable_uint32=no)
-- 
1.9.1




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