[PATCH] D52050: [Driver] Fix architecture triplets and search paths for Linux x32

[John Paul Adrian Glaubitz via Phabricator via cfe-commits]

glaubitz added a comment.

In D52050#2441164 <https://reviews.llvm.org/D52050#2441164>, @glaubitz wrote:

> In D52050#2441141 <https://reviews.llvm.org/D52050#2441141>, @jrtc27 wrote:
>
>> What gets done currently for i386? That suffers potentially the same problem given both /usr/lib/gcc/x86_64-linux-gnu/$V/32 and /usr/lib/gcc/i386-linux-gnu/$V are possible locations for an i386 GCC toolchain.
>
> Very good suggestion. I will look into that tomorrow. Thanks for the pointer!

I have been wrapping my head around this for some time and I have run into one problem trying to apply the suggested approach.

The problem is that I don't know how to tell whether I'm on an x86_64 system or an x32 system there is no ```case llvm::Triple::x32:``` which would be needed here (we have it for x86).

x32 takes the switch case for x86_64, so x32 and x86_64 targeting x32 are identical.


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