[MemoryBuffer] Revert unintended MemoryBuffer change from D86996
authorFangrui Song <i@maskray.me>
Tue, 15 Sep 2020 17:20:08 +0000 (10:20 -0700)
committerFangrui Song <i@maskray.me>
Tue, 15 Sep 2020 17:21:05 +0000 (10:21 -0700)
commit03f1516d6075f42dce95bcf9fde3f6fde97abd35
tree7f2a5034466e1735bea1e3ad772cb98b68b01e8f
parent3a59628f3cc26eb085acfc9cbdc97243ef71a6c5
[MemoryBuffer] Revert unintended MemoryBuffer change from D86996

Fixes SupportsTest MemoryBufferTest.mmapVolatileNoNull
llvm/lib/Support/MemoryBuffer.cpp