use convenience function for copying IR flags; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253996 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index 3dd3cfd4187e3e95d27e000b0056b13318f4dba3..4ea92df9924fc734694cd1fe86add50721bb0fee 100644 (file)
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -981,12 +981,7 @@ Instruction *WidenIV::cloneBitwiseIVUser(NarrowIVDefUse DU) {
                                         NarrowBO->getName());
   IRBuilder<> Builder(NarrowUse);
   Builder.Insert(WideBO);
-  if (const auto *OBO = dyn_cast<OverflowingBinaryOperator>(NarrowBO)) {
-    if (OBO->hasNoUnsignedWrap())
-      WideBO->setHasNoUnsignedWrap();
-    if (OBO->hasNoSignedWrap())
-      WideBO->setHasNoSignedWrap();
-  }
+  WideBO->copyIRFlags(NarrowBO);
   return WideBO;
 }
 
@@ -1078,12 +1073,7 @@ Instruction *WidenIV::cloneArithmeticIVUser(NarrowIVDefUse DU,
 
   IRBuilder<> Builder(NarrowUse);
   Builder.Insert(WideBO);
-  if (const auto *OBO = dyn_cast<OverflowingBinaryOperator>(NarrowBO)) {
-    if (OBO->hasNoUnsignedWrap())
-      WideBO->setHasNoUnsignedWrap();
-    if (OBO->hasNoSignedWrap())
-      WideBO->setHasNoSignedWrap();
-  }
+  WideBO->copyIRFlags(NarrowBO);
   return WideBO;
 }