[PATCH] D29960: [PGO] Delay directory creation until write time

[Xinliang David Li via llvm-commits]

On Tue, Feb 14, 2017 at 1:04 PM, Rong Xu via Phabricator <
reviews at reviews.llvm.org> wrote:

> xur added a comment.
>
> why limit to merge mode?
> non-merge mode also exhibits the problem mentioned.
>

It will affect the external behavior of non-merge case -- as file
truncation also needs to be delayed.  Also this is relevant only for users
that use profiling APIs which are mostly using merge mode.

If there is a strong need to handle non-merge case, we can do this as a
followup.

David


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> https://reviews.llvm.org/D29960
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