[Beignet] [PATCH 2/3] Change optimize level to -O2, to avoid loopunswitch opt.

[Yang Rong]

Signed-off-by: Yang Rong <rong.r.y...@intel.com>
---
 backend/src/backend/program.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/src/backend/program.cpp b/backend/src/backend/program.cpp
index 60c6112..647a958 100644
--- a/backend/src/backend/program.cpp
+++ b/backend/src/backend/program.cpp
@@ -475,7 +475,7 @@ namespace gbe {
     // XXX we haven't implement those builtin functions,
     // so disable it currently.
     args.push_back("-fno-builtin");
-    if(bOpt)  args.push_back("-O3");
+    if(bOpt)  args.push_back("-O2");
 #if LLVM_VERSION_MINOR <= 2
     args.push_back("-triple");
     args.push_back("nvptx");
-- 
1.8.1.2

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