[PATCH] D25918: [ThinLTO] Disable importing and other cross-module optis at -O0

[Teresa Johnson via llvm-commits]

tejohnson added a comment.

Forgot to add llvm-commits before, just added. There haven't been any comments yet, so only thing missing on mailing list is the original description:

There is no point to importing at -O0, since we won't inline. We should
also disable other cross-module optimizations.

(Plan to backport this fix to the 3.9 branch to fix PR30774)


https://reviews.llvm.org/D25918