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5 Commits

Author SHA1 Message Date
Rui Ueyama 7f97570e79 Make ICF log output order deterministic. 
This patch does the same thing as r338153 for COFF.
Note that this patch affects only the order of log messages.
The output file is already deterministic.

Differential Revision: https://reviews.llvm.org/D50023

llvm-svn: 338406
 2018-07-31 18:04:58 +00:00
Fangrui Song 9c85d7acbe [Support] Use unsigned char for xxHash 64-bit 
Before, the last 3 bytes were char-signedness dependent.

llvm-svn: 338128
 2018-07-27 16:01:09 +00:00
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
Rui Ueyama 87b30ac9d3 Replace HashString algorithm with xxHash64 
The previous algorithm processed one character at a time, which is very
painful on a modern CPU. Replace it with xxHash64, which both already
exists in the codebase and is fairly fast.

Patch from Scott Smith!

Differential Revision: https://reviews.llvm.org/D32509

llvm-svn: 301487
 2017-04-26 22:45:04 +00:00
Rafael Espindola eaeb6d91a1 Add xxhash to llvm. 
It will be used for fast fingerprinting in lld at least.

llvm-svn: 282493
 2016-09-27 15:45:57 +00:00