RemoveUnusedCPEntries can change things. Track it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122129 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index 126078a..8c7ce90 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -327,7 +327,7 @@
 
 
   /// Remove dead constant pool entries.
-  RemoveUnusedCPEntries();
+  MadeChange |= RemoveUnusedCPEntries();
 
   // Iteratively place constant pool entries and fix up branches until there
   // is no change.