[SubZero] Implement lowerSwitch for MIPS

src/IceInstMIPS32.h

 //===- subzero/src/IceInstMIPS32.h - MIPS32 machine instrs --*- C++ -*-===    //
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 651 matching lines @@
   }
 
   static InstMIPS32Br *create(Cfg *Func, CfgNode *TargetTrue,
                               CfgNode *TargetFalse, Operand *Src0,
                               CondMIPS32::Cond Cond) {
     constexpr InstMIPS32Label *NoLabel = nullptr;
     return new (Func->allocate<InstMIPS32Br>())
         InstMIPS32Br(Func, TargetTrue, TargetFalse, Src0, NoLabel, Cond);
   }
 
+  static InstMIPS32Br *create(Cfg *Func, CfgNode *TargetTrue,
+                              CfgNode *TargetFalse, Operand *Src0,
+                              Operand *Src1, const InstMIPS32Label *Label,
+                              CondMIPS32::Cond Cond) {
+    return new (Func->allocate<InstMIPS32Br>())
+        InstMIPS32Br(Func, TargetTrue, TargetFalse, Src0, Src1, Label, Cond);
+  }
+
   const CfgNode *getTargetTrue() const { return TargetTrue; }
   const CfgNode *getTargetFalse() const { return TargetFalse; }
   CondMIPS32::Cond getPredicate() const { return Predicate; }
   void setPredicate(CondMIPS32::Cond Pred) { Predicate = Pred; }
   bool optimizeBranch(const CfgNode *NextNode);
   bool isUnconditionalBranch() const override {
     return Predicate == CondMIPS32::AL;
   }
   bool repointEdges(CfgNode *OldNode, CfgNode *NewNode) override;
   void emit(const Cfg *Func) const override;
@@ skipping 222 matching lines @@
 template <> void InstMIPS32Mtlo::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mthi::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mult::emit(const Cfg *Func) const;
 template <> void InstMIPS32Multu::emit(const Cfg *Func) const;
 template <> void InstMIPS32Lui::emit(const Cfg *Func) const;
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTMIPS32_H