Rui Ueyama 0fcbb2893e Revert r301487: Replace HashString algorithm with xxHash64
This reverts commit r301487 to make buildbots green.

llvm-svn: 301491
2017-04-26 23:15:10 +00:00
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2017-02-02 22:08:25 +00:00
2017-02-02 01:21:13 +00:00
2016-08-19 15:07:58 +00:00