[PATCH] LivePhysRegs: Add support to add pristine registers when populating with live-in/live-out registers.

[Quentin Colombet]

I agree, the error proneness is a good argument!

Small comments inlined.

Cheers,
-Quentin


REPOSITORY
  rL LLVM

================
Comment at: lib/CodeGen/LivePhysRegs.cpp:140
@@ +139,3 @@
+  const MachineFrameInfo &MFI = *MF.getFrameInfo();
+  if (!MFI.isCalleeSavedInfoValid())
+    return;
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Is there a reason we are not using MachineFrameInfo::getPristineRegs?

I may be wrong, but at first glance it seems as if we copied/pasted the code from there.

http://reviews.llvm.org/D10139

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