[Patch 0/2] Add /Gw to CC_FLAGS for VS 2013 and higher tool chains

[Yonghong Zhu <yonghong.zhu@intel.com>]

The /Gw flag does a better job at size optimization than use of the
GLOBAL_REMOVE_IF_UNREFERENCED macro that is currently used for VS20xx
tool chains to remove unreferenced global variables.

The recommendation is to add /Gw to CC_FLAGS for VS2013 and higher
tool chain tags and update Base.h in MdePkg to check the _MSC_VER
and define GLOBAL_REMOVE_IF_UNREFERENCED to nothing for VS2013 and
higher tool chain tags.

Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=583
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>


Yonghong Zhu (2):
  BaseTools: add /Gw to CC_FLAGS for VS2013 and higher tool chain tags
  MdePkg: update Base.h in MdePkg to check the _MSC_VER

 BaseTools/Conf/tools_def.template | 110 +++++++++++++++++++-------------------
 MdePkg/Include/Base.h             |   2 +-
 2 files changed, 56 insertions(+), 56 deletions(-)

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2.6.1.windows.1