From: Philip Reames <listmail@philipreames.com>
Date: Mon, 9 Sep 2019 20:06:19 +0000 (+0000)
Subject: [SDAG] Add a isSimple cover functon to MemSDNode, just as we have in IR/MI [NFC]
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e83be01775e95a92378d98524d715320ab09e36f;p=llvm

[SDAG] Add a isSimple cover functon to MemSDNode, just as we have in IR/MI [NFC]

Uses are in reviews D66322 and D66318.  Submitted separately to control rebuild times.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@371445 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index d542ea13f77..2b00b856870 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -1361,6 +1361,9 @@ public:
   /// aliasing rules.
   bool isUnordered() const { return MMO->isUnordered(); }
 
+  /// Returns true if the memory operation is neither atomic or volatile.
+  bool isSimple() const { return !isAtomic() && !isVolatile(); }
+
   /// Return the type of the in-memory value.
   EVT getMemoryVT() const { return MemoryVT; }