Introduction of improved switch lowering.

src/IceInstX86BaseImpl.h

Index: src/IceInstX86BaseImpl.h
diff --git a/src/IceInstX86BaseImpl.h b/src/IceInstX86BaseImpl.h
index 2d9ee0f423e9363c539c724fb7ee2faa3a6b4343..f80073e638735206c7f258eb0a2768126050e516 100644
--- a/src/IceInstX86BaseImpl.h
+++ b/src/IceInstX86BaseImpl.h
@@ -152,15 +152,17 @@ bool InstX86Br<Machine>::optimizeBranch(const CfgNode *NextNode) {
 }
 
 template <class Machine>
-bool InstX86Br<Machine>::repointEdge(CfgNode *OldNode, CfgNode *NewNode) {
+bool InstX86Br<Machine>::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;
 }
 
 template <class Machine>