[GlobalISel] findGISelOptimalMemOpLowering - remove dead initalization. NFCI.

Fixes static analyzer warning that "Value stored to 'NewTySize' during its initialization is never read".

llvm-svn: 371937

diff --git a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
index 76e82a9..6b2bd16 100644 (file)
--- a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
@@ -673,10 +673,8 @@ static bool findGISelOptimalMemOpLowering(
       // SDAGisms map cleanly to GISel concepts.
       if (NewTy.isVector())
         NewTy = NewTy.getSizeInBits() > 64 ? LLT::scalar(64) : LLT::scalar(32);
+      NewTy = LLT::scalar(PowerOf2Floor(NewTy.getSizeInBits() - 1));
       unsigned NewTySize = NewTy.getSizeInBytes();
-
-      NewTy = LLT::scalar(PowerOf2Floor(NewTy.getSizeInBits()-1));
-      NewTySize = NewTy.getSizeInBytes();
       assert(NewTySize > 0 && "Could not find appropriate type");
 
       // If the new LLT cannot cover all of the remaining bits, then consider