[ThinLTO] Correct documentation on default number of threads
authorTeresa Johnson <tejohnson@google.com>
Fri, 17 Aug 2018 13:19:36 +0000 (13:19 +0000)
committerTeresa Johnson <tejohnson@google.com>
Fri, 17 Aug 2018 13:19:36 +0000 (13:19 +0000)
commitc9818ebc02b9ae0ef5cee50a9fb60a9626c6274e
tree2aacb04147706e7627a49c0221000362749ab48c
parent16a2f54eee3bfd7844ac6d1fde1abdd0be4c471f
[ThinLTO] Correct documentation on default number of threads

Summary:
The number of threads used for ThinLTO backend parallelism was
dropped to the number of cores in r284618 to avoid oversubscribing
physical cores due to hyperthreading. This updates the documentation
to reflect that change.

Fixes PR38610.

Reviewers: pcc

Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D50882

llvm-svn: 340021
clang/docs/ThinLTO.rst