This reverts commit r294967. This patch caused execution time slowdowns in a few LLVM test-suite tests, as reported by the clang-cmake-aarch64-quick bot. I'm reverting to investigate. llvm-svn: 294973
This reverts commit r294967. This patch caused execution time slowdowns in a few LLVM test-suite tests, as reported by the clang-cmake-aarch64-quick bot. I'm reverting to investigate. llvm-svn: 294973