llvm-reduce: Add pass to reduce instructions

Patch by Diego TreviƱo!

Differential Revision: https://reviews.llvm.org/D66263

llvm-svn: 372282
diff --git a/llvm/tools/llvm-reduce/DeltaManager.h b/llvm/tools/llvm-reduce/DeltaManager.h
index 08d4139..2309c3a 100644
--- a/llvm/tools/llvm-reduce/DeltaManager.h
+++ b/llvm/tools/llvm-reduce/DeltaManager.h
@@ -18,6 +18,7 @@
 #include "deltas/ReduceFunctions.h"
 #include "deltas/ReduceGlobalVars.h"
 #include "deltas/ReduceMetadata.h"
+#include "deltas/ReduceInstructions.h"
 
 namespace llvm {
 
@@ -28,6 +29,7 @@
   reduceGlobalsDeltaPass(Tester);
   reduceMetadataDeltaPass(Tester);
   reduceArgumentsDeltaPass(Tester);
+  reduceInstructionsDeltaPass(Tester);
   // TODO: Implement the remaining Delta Passes
 }