[PATCH] D55775: [Driver] Don't override '-march' when using '-arch x86_64h'

[Gerolf Hoflehner via Phabricator via cfe-commits]

Gerolf added reviewers: ahatanak, qcolombet.
Gerolf added a comment.

+ Akira, Quentin for their driver / x86_64h experience for a quick double check. Fwiw, LGTM.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55775/new/

https://reviews.llvm.org/D55775