From 449e890f29a52973b318ab9f6ea7eaa8843844a5 Mon Sep 17 00:00:00 2001
From: Florian Hahn <florian.hahn@arm.com>
Date: Sat, 21 Oct 2017 05:37:10 +0000
Subject: [PATCH] [SelectionDAG] Use dyn_cast without cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316258 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 63f9198d594..b6e3efe60c2 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2966,8 +2966,8 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, const APInt &DemandedElts,
   unsigned Tmp, Tmp2;
   unsigned FirstAnswer = 1;
 
-  if (isa<ConstantSDNode>(Op)) {
-    const APInt &Val = cast<ConstantSDNode>(Op)->getAPIntValue();
+  if (auto *C = dyn_cast<ConstantSDNode>(Op)) {
+    const APInt &Val = C->getAPIntValue();
     return Val.getNumSignBits();
   }
 
-- 
2.40.0