[InstCombine] improve formatting; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295237 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/lib/Transforms/InstCombine/InstCombineAddSub.cpp
index 2d34c1cc74bd8cf7516bf0fd7471ce893d8727ed..998ef492fc189abe30f2cb9d7b47b397e07e3ac0 100644 (file)
--- a/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ b/lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -1062,12 +1062,9 @@ Instruction *InstCombiner::visitAdd(BinaryOperator &I) {
         match(LHS, m_ZExt(m_NUWAdd(m_Value(X), m_APInt(C)))) &&
         Val->sge(-C->sext(Val->getBitWidth()))) {
       // (add (zext (add nuw X, C)), Val) -> (zext (add nuw X, C+Val))
-      return CastInst::Create(
-          Instruction::ZExt,
-          Builder->CreateNUWAdd(
-              X, Constant::getIntegerValue(X->getType(),
-                                           *C + Val->trunc(C->getBitWidth()))),
-          I.getType());
+      Constant *NewC =
+          ConstantInt::get(X->getType(), *C + Val->trunc(C->getBitWidth()));
+      return new ZExtInst(Builder->CreateNUWAdd(X, NewC), I.getType());
     }
   }