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

[周晓勇]

>From 18f5219dd892432c21485f2e26b91c565bde4070 Mon Sep 17 00:00:00 2001
From: ZhouXiaoyong <zhouxiaoyong at loongson.cn>
Date: Tue, 14 Jul 2015 13:39:04 +0800
Subject: [PATCH] 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>
---
 configure | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)


diff --git a/configure b/configure
index 88ee936..9e64aba 100755
--- a/configure
+++ b/configure
@@ -3997,13 +3997,13 @@ 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
         ;;
-- 
2.1.0