[PATCH] D69825: [Clang][Driver] Re-use the calling process instead of creating a new process for the cc1 invocation

[Alex Lorenz via Phabricator via cfe-commits]

arphaman added a comment.

I guess Duncan's comments on https://reviews.llvm.org/D70568 were for this patch. I think it would be good to have:

- A cmake option that controls the default behavior. It should still fork for Darwin by default, the detection should be done through CMake when it's building for a Darwin platform.
- A driver/cc1 flag that allows the user to override the behavior.

This will allow users to avoid cc1 forking either by building their own Clang, or by passing in a flag with their build options. WDYT?


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  https://reviews.llvm.org/D69825/new/

https://reviews.llvm.org/D69825