[PATCH] [PowerPC] Yet another approach to __tls_get_addr

[hfinkel at anl.gov]

================
Comment at: lib/Target/PowerPC/PPCInstr64Bit.td:905
@@ +904,3 @@
+let Defs = [LR8] in {
+def GETtlsADDR : Pseudo<(outs g8rc:$rD), (ins g8rc:$reg, tlsgd:$sym),
+                        "#GETtlsADDR",
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To follow-up on the IRC messages I missed, to keep the anti-dep breaker from disturbing the r3 assignments, you'll probably want to set let hasExtraSrcRegAllocReq = 1, and/or hasExtraDefRegAllocReq = 1 here (and on the other pseudos in this patch).

http://reviews.llvm.org/D7350

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