stage2 vs stage3 file comparison regressions

Is anyone seeing new instances of stage2/stage3 filled comparison
failures for a 3-stage bootstrap of llvm/clang/compiler-rt? On
x86_64-apple-darwin16 using a 3-stage bootstrap, we seem to have new
regressions of...

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  projects/compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.osx.dir/ubsan_type_hash.cc.o
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  projects/openmp/runtime/src/kmp_i18n_default.inc
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The same 3-stage bootstrap methodology shows no regressions for the
recently released llvm 4.0.0 sources on darwin16 or any prior llvm
release.
          Jack