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Going from IR <-> BC does not seem to create a difference. IR -> BC -> IR -> BC, either with clang frontent or by using llvm-as and llvm-dis yields identical bc files. I have only been able to reproduce this issue when emitting to an object file. > On 18 Jan 2019, at 18:09, <paul.robinson at sony.com> <paul.robinson at sony.com> wrote: > > > >>

This may not be a ZFS issue, so please bear with me! I have 4 internal drives that I have striped/mirrored with ZFS and have an application server which is reading/writing to hundreds of thousands of files on it, thousands of files @ a time. If 1 client uses the app server, the transaction (reading/writing to ~80 files) takes about 200 ms. If I have about 80 clients attempting it @ once, it can

We've noticed a difference in the embedded bitcode when compiling human readable IR to an object directly vs first compiling IR to BC and then an object through clang -cc1. If the original IR file contained an "llvm.compiler.used" gv, it will be preserved when compiling IR -> BC -> Obj. When compiling IR -> Obj directly, it will be removed. This difference does not exist