Subzero, MIPS32: Atomic intrinsics fixes

src/IceTargetLowering.h

Index: src/IceTargetLowering.h
diff --git a/src/IceTargetLowering.h b/src/IceTargetLowering.h
index 3de6965d60eb8b4949617f09fed5e6078718ff0a..aa3f0a237c770e08f7c2b6710c3654efa40b25ab 100644
--- a/src/IceTargetLowering.h
+++ b/src/IceTargetLowering.h
@@ -253,7 +253,9 @@ public:
   virtual void reserveFixedAllocaArea(size_t Size, size_t Align) = 0;
   virtual int32_t getFrameFixedAllocaOffset() const = 0;
   virtual uint32_t maxOutArgsSizeBytes() const { return 0; }
-
+  virtual uint32_t getOffset(uint32_t CurrentOffset, uint32_t Size) const {

[Jim Stichnoth, 2017/01/11 04:55:54]

I would prefer a more specific method name.  Maybe something like
  getFramePointerOffset ?  Also a short comment here explaining its intent?

[Stefan Maksimovic, 2017/01/11 09:25:25]

Done.

+    return -(CurrentOffset + Size);
+  }
   /// Return whether a 64-bit Variable should be split into a Variable64On32.
   virtual bool shouldSplitToVariable64On32(Type Ty) const = 0;