[PATCH] D60379: Make precompiled headers reproducible

Mon Apr 8 12:48:38 PDT 2019

thakis added a comment.

In D60379#1458668 <https://reviews.llvm.org/D60379#1458668>, @riccibruno wrote:

> After looking at the bug report (https://bugs.debian.org/877359), I would like to point out that there is currently *absolutely* no stability guarantee for the serialization format (ie, you need the exact same revision). In regard of this I am wondering how sane it is to ship pch files.

I agree we shouldn't make guarantees about pch file format stability and that distributing pch files isn't a good idea. Having said that, making clang write the same output when given the same input is still a Good Thing as it enables caching these outputs e.g. with tools like distcc.

Repository:
  rC Clang

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  https://reviews.llvm.org/D60379/new/

https://reviews.llvm.org/D60379