tree 28db41d955833f8bbfc41593c01bac85f96d0b79
parent 7a3025ffe3b92058412427fa137c4951b50876c3
author Aaron Green <aarongreen@google.com> 1617344435 -0700
committer Copybara-Service <copybara-worker@google.com> 1618267966 -0700

Tweak SimpleFastHash

This change adds a SimpleFastHash64 variant of SimpleFastHash which allows call sites to specify a starting value and get a 64 bit hash in return. This allows a hash to be "resumed" with more data.

A later patch needs this to be able to hash a sequence of module-relative values one at a time, rather than just a region a memory.

Reviewed By: morehouse

Differential Revision: https://reviews.llvm.org/D94510

GitOrigin-RevId: 0889181625bb570e463362ab8f53f9a14c886b2e