[PATCH] Add saving and restoring of r30 to the prologue and epilogue, respectively

[hfinkel at anl.gov]

LGTM.


REPOSITORY
  rL LLVM

================
Comment at: lib/Target/PowerPC/PPCFrameLowering.cpp:647
@@ -646,1 +646,3 @@
 
+  if (isPIC && !isDarwinABI && !isPPC64 && MF.getInfo<PPCFunctionInfo>()->usesPICBase())
+    // FIXME: On PPC32 SVR4, we must not spill before claiming the stackframe.
----------------
This line is too long.

================
Comment at: lib/Target/PowerPC/PPCFrameLowering.cpp:1013
@@ -1005,1 +1012,3 @@
 
+  if (isPIC && !isDarwinABI && !isPPC64 && MF.getInfo<PPCFunctionInfo>()->usesPICBase())
+    // FIXME: On PPC32 SVR4, we must not spill before claiming the stackframe.
----------------
Same here.

http://reviews.llvm.org/D6876

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