Enable O2 option to generate fast code for performance improvement.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming....@intel.com>
---
 BaseTools/Source/C/Makefiles/ms.app    | 2 +-
 BaseTools/Source/C/Makefiles/ms.common | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/BaseTools/Source/C/Makefiles/ms.app 
b/BaseTools/Source/C/Makefiles/ms.app
index 908ffe8..93d51f9 100644
--- a/BaseTools/Source/C/Makefiles/ms.app
+++ b/BaseTools/Source/C/Makefiles/ms.app
@@ -17,7 +17,7 @@ all: $(APPLICATION)
 
 $(APPLICATION) : $(OBJECTS) 
        -@if not exist $(BIN_PATH) mkdir $(BIN_PATH)
-       $(LD) /nologo /debug /incremental:no /nodefaultlib:libc.lib /out:$@ 
$(LIBS) $**
+       $(LD) /nologo /debug /OPT:REF /OPT:ICF=10 /incremental:no 
/nodefaultlib:libc.lib /out:$@ $(LIBS) $**
 
 $(OBJECTS) : ..\Include\Common\BuildVersion.h
 
diff --git a/BaseTools/Source/C/Makefiles/ms.common 
b/BaseTools/Source/C/Makefiles/ms.common
index 9e50b21..5c3991d 100644
--- a/BaseTools/Source/C/Makefiles/ms.common
+++ b/BaseTools/Source/C/Makefiles/ms.common
@@ -61,6 +61,6 @@ LINKER = $(LD)
 
 INC = -I . -I $(SOURCE_PATH)\Include -I $(ARCH_INCLUDE) -I 
$(SOURCE_PATH)\Common $(INC)
 
-CFLAGS = $(CFLAGS) /nologo /c /Zi /Od /RTC1 /D _DEBUG /MTd /W4 /WX /D 
_CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE 
-CPPFLAGS = $(CPPFLAGS) /EHsc /nologo /c /Zi /Od /RTC1 /D _DEBUG /MTd /D 
_CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE 
+CFLAGS = $(CFLAGS) /nologo /Zi /c /O2 /MD /W4 /WX /D _CRT_SECURE_NO_DEPRECATE 
/D _CRT_NONSTDC_NO_DEPRECATE 
+CPPFLAGS = $(CPPFLAGS) /EHsc /nologo /Zi /c /O2 /MD /D 
_CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE 
 
-- 
2.8.0.windows.1

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