Introduction of improved switch lowering.

src/IceInstARM32.cpp

Index: src/IceInstARM32.cpp
diff --git a/src/IceInstARM32.cpp b/src/IceInstARM32.cpp
index e95f6b111579c374e0cc8d35d2b744f78f783bfc..ddc94a7bf83669b79c1f3e14365d283b0207c013 100644
--- a/src/IceInstARM32.cpp
+++ b/src/IceInstARM32.cpp
@@ -277,15 +277,17 @@ bool InstARM32Br::optimizeBranch(const CfgNode *NextNode) {
   return false;
 }
 
-bool InstARM32Br::repointEdge(CfgNode *OldNode, CfgNode *NewNode) {
+bool InstARM32Br::repointEdges(CfgNode *OldNode, CfgNode *NewNode) {
+  bool Found = false;
   if (TargetFalse == OldNode) {
     TargetFalse = NewNode;
-    return true;
-  } else if (TargetTrue == OldNode) {
+    Found = true;
+  }
+  if (TargetTrue == OldNode) {
     TargetTrue = NewNode;
-    return true;
+    Found = true;
   }
-  return false;
+  return Found;
 }
 
 InstARM32Call::InstARM32Call(Cfg *Func, Variable *Dest, Operand *CallTarget)