[PATCH] [mips] Implement eliminateCallFramePseudoInstr() in MipsFrameLowering. NFC.

[Eric Christopher]

Random drive by comment. The rest LGTM.

-eric


================
Comment at: lib/Target/Mips/MipsFrameLowering.cpp:139
@@ +138,3 @@
+                              MachineBasicBlock::iterator I) const {
+  unsigned SP = STI.isABI_N64() ? Mips::SP_64 : Mips::SP;
+
----------------
Should probably get the ABI off of the TargetMachine. I'd like to (or someone should)  remove the subtarget ones at some point and migrate everything to using TM for them.

http://reviews.llvm.org/D8641

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