[Bug 101881] [regression] 32bit steam games segfault when launched with DRI_PRIME=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101881

--- Comment #19 from Mike Lothian <mike at fireburn.co.uk> ---
So I tried dropping the -march=native and now it all works no matter what
version of GCC I use. So it looks like GCC 7+ is miscompiling 32bit apps with
-march=native 

I then added in -mbmi which broke things again and I finally tested with
-march=native -mno-bmi which worked

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