From 63e6d8db1cbfe75142669c55819c655c600f00a5 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 9 Sep 2019 16:18:07 +0000
Subject: AMDGPU/GlobalISel: Select atomic loads

A new check for an explicitly atomic MMO is needed to avoid
incorrectly matching pattern for non-atomic loads

llvm-svn: 371418
---
 llvm/utils/TableGen/GlobalISelEmitter.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/utils/TableGen')

diff --git a/llvm/utils/TableGen/GlobalISelEmitter.cpp b/llvm/utils/TableGen/GlobalISelEmitter.cpp
index 75634d36f08..2a7be0cb821 100644
--- a/llvm/utils/TableGen/GlobalISelEmitter.cpp
+++ b/llvm/utils/TableGen/GlobalISelEmitter.cpp
@@ -3614,6 +3614,10 @@ Expected<InstructionMatcher &> GlobalISelEmitter::createAndImportSelDAGMatcher(
   }
   if (SrcGIEquivOrNull && SrcGIEquivOrNull->getValueAsBit("CheckMMOIsNonAtomic"))
     InsnMatcher.addPredicate<AtomicOrderingMMOPredicateMatcher>("NotAtomic");
+  else if (SrcGIEquivOrNull && SrcGIEquivOrNull->getValueAsBit("CheckMMOIsAtomic")) {
+    InsnMatcher.addPredicate<AtomicOrderingMMOPredicateMatcher>(
+      "Unordered", AtomicOrderingMMOPredicateMatcher::AO_OrStronger);
+  }
 
   if (Src->isLeaf()) {
     Init *SrcInit = Src->getLeafValue();
-- 
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