[CGP] Enable complex addr mode

Enable complex addr modes after two critical fixes: rL319109 and rL319292

llvm-svn: 319302
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index 97fe56e..9d3e723 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -190,7 +190,7 @@
     " the other."), cl::init(true));
 
 static cl::opt<bool> DisableComplexAddrModes(
-    "disable-complex-addr-modes", cl::Hidden, cl::init(true),
+    "disable-complex-addr-modes", cl::Hidden, cl::init(false),
     cl::desc("Disables combining addressing modes with different parts "
              "in optimizeMemoryInst."));