Be more conservative of duplicating blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37669 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 0f82ce5..e371714 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -255,7 +255,7 @@
   setStackPointerRegisterToSaveRestore(ARM::SP);
   setSchedulingPreference(SchedulingForRegPressure);
   setIfCvtBlockSizeLimit(Subtarget->isThumb() ? 0 : 10);
-  setIfCvtDupBlockSizeLimit(Subtarget->isThumb() ? 0 : 3);
+  setIfCvtDupBlockSizeLimit(Subtarget->isThumb() ? 0 : 2);
 
   maxStoresPerMemcpy = 1;   //// temporary - rewrite interface to use type
 }