[Diffusion] rL246372: [PowerPC] Don't assume ADDISdtprelHA's source is r3

[Bill Schmidt via llvm-commits]

wschmidt added a subscriber: wschmidt.
wschmidt added auditors: 3.7-release, llvm-commits, tstellarAMD, hfinkel.
wschmidt added a comment.

Important bug fix for thread-local storage on Power.


Users:
  hfinkel (Author, Auditor)
  3.7-release (Auditor)
  llvm-commits (Auditor)
  tstellarAMD (Auditor)

http://reviews.llvm.org/rL246372