commit 23d68908bac60ad89b24fdd95ab8bab539f700ea
author Nico Weber <nicolasweber@gmx.de> Sat Sep 15 18:35:51 2018 +0000
committer Nico Weber <nicolasweber@gmx.de> Sat Sep 15 18:35:51 2018 +0000
tree 66a53932a3ca1c1737ea6688486f71bfd834af08
parent 53bb7b2cc4a706111c25f7c84a82f4a97b3fad8e

Give InfoStreamBuilder an opt-in method to write a hash of the PDB as GUID.

Naively computing the hash after the PDB data has been generated is in practice
as fast as other approaches I tried. I also tried online-computing the hash as
parts of the PDB were written out (https://reviews.llvm.org/D51887; that's also
where all the measuring data is) and computing the hash in parallel
(https://reviews.llvm.org/D51957). This approach here is simplest, without
being slower.

Differential Revision: https://reviews.llvm.org/D51956


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@342333 91177308-0d34-0410-b5e6-96231b3b80d8