Turn off binary comparison for 3.3 release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@181398 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r181313:
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r181313 | mkuper | 2013-05-07 07:05:33 -0700 (Tue, 07 May 2013) | 1 line

Re-enable AVX detection on x64 platforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@181399 91177308-0d34-0410-b5e6-96231b3b80d8