Subzero: Basic unconditional branch for Mips.

src/IceTargetLoweringMIPS32.h

Index: src/IceTargetLoweringMIPS32.h
diff --git a/src/IceTargetLoweringMIPS32.h b/src/IceTargetLoweringMIPS32.h
index a06dc80e6c0d991299382c695cfcbcc467aaee7b..625a3dd1c0ca109d899a169d32ae127adf9b7290 100644
--- a/src/IceTargetLoweringMIPS32.h
+++ b/src/IceTargetLoweringMIPS32.h
@@ -147,6 +147,8 @@ public:
     Context.insert<InstMIPS32And>(Dest, Src0, Src1);
   }
 
+  void _br(CfgNode *Target) { Context.insert<InstMIPS32Br>(Target); }
+
   void _ret(Variable *RA, Variable *Src0 = nullptr) {
     Context.insert<InstMIPS32Ret>(RA, Src0);
   }