Replace constant conditional branches by unconditional branches

src/IceInst.h

Index: src/IceInst.h
diff --git a/src/IceInst.h b/src/IceInst.h
index 4fb74ae93d58010a513793bc44fa644bdd642900..c72af35f439abb6a7a51cc1539407d67e2a09daa 100644
--- a/src/IceInst.h
+++ b/src/IceInst.h
@@ -622,6 +622,7 @@ public:
   }
   void addArgument(Operand *Source, CfgNode *Label);
   Operand *getOperandForTarget(CfgNode *Target) const;
+  void clearOperandForTarget(CfgNode *Target);
   CfgNode *getLabel(SizeT Index) const { return Labels[Index]; }
   void livenessPhiOperand(LivenessBV &Live, CfgNode *Target,
                           Liveness *Liveness);