[SubZero] Vector types support for MIPS

src/IceTargetLowering.h

Index: src/IceTargetLowering.h
diff --git a/src/IceTargetLowering.h b/src/IceTargetLowering.h
index 278b7a85491d755ef58db204a268ff0e9e442dfc..318f752860b8fc649b41a99e2eda9c4d6a3bcc48 100644
--- a/src/IceTargetLowering.h
+++ b/src/IceTargetLowering.h
@@ -256,6 +256,9 @@ public:
   /// Return whether a 64-bit Variable should be split into a Variable64On32.
   virtual bool shouldSplitToVariable64On32(Type Ty) const = 0;
 
+  /// Return whether a Vector Variable should be split into a VariableVecOn32.
+  virtual bool shouldSplitToVariableVecOn32(Type Ty) const = 0;

[Jim Stichnoth, 2016/09/29 16:50:25]

Since this is likely to be MIPS-specific, maybe provide a default "return
false;" implementation, instead of making it pure virtual?

That way, the non-MIPS targets won't need to be touched.

[jaydeep.patil, 2016/09/30 07:02:51]

Done.

+
   bool hasComputedFrame() const { return HasComputedFrame; }
   /// Returns true if this function calls a function that has the "returns
   /// twice" attribute.
@@ -503,6 +506,9 @@ protected:
     const SizeT NumElements = typeNumElements(DestTy);
 
     Variable *T = Func->makeVariable(DestTy);
+    if (auto *VarVecOn32 = llvm::dyn_cast<VariableVecOn32>(T)) {
+      VarVecOn32->initVecElement(Func, DestTy);
+    }
     Context.insert<InstFakeDef>(T);
 
     for (SizeT I = 0; I < NumElements; ++I) {