[FFmpeg-cvslog] configure: loongson disable expensive optimizations in gcc O3 optimization

[周晓勇]

ffmpeg | branch: master | 周晓勇 <zhouxiaoyong at loongson.cn> | Wed Jul 15 17:28:31 2015 +0800| [2c34389551b6ba3d90f8783806c337e387e603cd] | committer: Michael Niedermayer

configure: loongson disable expensive optimizations in gcc O3 optimization

With gcc-4.9.2 loongson faild in test fate-dca, this is caused by option
-fexpensive-optimizations in -O3 optimization. We disable it temporarily
before the bug been fixed up.

Signed-off-by: ZhouXiaoyong <zhouxiaoyong at loongson.cn>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2c34389551b6ba3d90f8783806c337e387e603cd
---

 configure |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 5616b59..1cd9fd6 100755
--- a/configure
+++ b/configure
@@ -4000,13 +4000,13 @@ elif enabled mips; then
             disable aligned_stack
             case $cpu in
                 loongson3*)
-                    cpuflags="-march=loongson3a -mhard-float"
+                    cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
                 ;;
                 loongson2e)
-                    cpuflags="-march=loongson2e -mhard-float"
+                    cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
                 ;;
                 loongson2f)
-                    cpuflags="-march=loongson2f -mhard-float"
+                    cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
                 ;;
             esac
         ;;