[PATCH] [PowerPC] Fix __tls_get_addr sequence to avoid register assignment issues

[hfinkel at anl.gov]

When we had talked on IRC, we had discussed expanding the pseudo-instruction late (after register allocation), but before post-RA scheduling. You're still expanding it here before RA. Did you change your mind?

Also, as is, you're doing things in between MI scheduling and RA without preserving live intervals, etc. I don't think that's a good idea.


http://reviews.llvm.org/D7491

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