[PATCH] D142933: Add -print-multi-selection-flags argument

[Michael Platings via Phabricator via cfe-commits]

michaelplatings added a comment.

> The main trouble I had was at that point we don't have a reference to the ToolChain, so calling `getMultiSelectionFlags` was not possible. [...] I'm not sure what the solution here is.

I see two options:

1. Split getMultiSelectionFlags into needs-ToolChain and doesn't-need-ToolChain parts, with the former calling the latter. From Gnu.cpp, call the latter, with the limitation that it can use fewer flags.
2. Pass a ToolChain to the Gnu.cpp functions.

> I added the arch extensions and abi to the Result in `getMultiSelectionFlags`

What was the syntax you used for that?
I'm not super keen on the `march=+ext` syntax I came up with so I'm open to alternatives.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142933/new/

https://reviews.llvm.org/D142933