[PATCH] D65430: Add `--dependency-files` option, which is equivalent to compiler option -MD.

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

In D65430#1616713 <https://reviews.llvm.org/D65430#1616713>, @ruiu wrote:

> As to post-process `-verbose` output, I think that that is too fragile to depend on, as `-verbose` is mainly for inspection and debugging. Any arbitrary output may be added to the `-verbose` output that can confuse post-process scripts. I also don't want to recommend users post-process `-verbose` output because of the same reason -- if people rely on the current `-verbose` output too much, any change to the file may break scripts in the wild which could prevent us from adding new messages there.


It is `-t | --trace` in ELF, not `--verbose`. (In COFF there is no --trace counterpart so I asked whether we should add a `/trace` on the mailing list.) The output format of `--trace` is stable.


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https://reviews.llvm.org/D65430