From 3213ce966b6b3395ba6a5f5d3ee7e17c7bd857ac Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Fri, 27 Dec 2019 11:26:24 -0500
Subject: TailDuplication: Clear NoPHIs property

The early tail duplicator pass introduces new ones, so a MIR test that
infers no phis since there were none on the input would fail the
verifier after running.
---
 llvm/lib/CodeGen/TailDuplication.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'llvm/lib/CodeGen/TailDuplication.cpp')

diff --git a/llvm/lib/CodeGen/TailDuplication.cpp b/llvm/lib/CodeGen/TailDuplication.cpp
index 942877417bf..648bf48b7d1 100644
--- a/llvm/lib/CodeGen/TailDuplication.cpp
+++ b/llvm/lib/CodeGen/TailDuplication.cpp
@@ -60,6 +60,11 @@ public:
   EarlyTailDuplicate() : TailDuplicateBase(ID, true) {
     initializeEarlyTailDuplicatePass(*PassRegistry::getPassRegistry());
   }
+
+  MachineFunctionProperties getClearedProperties() const override {
+    return MachineFunctionProperties()
+      .set(MachineFunctionProperties::Property::NoPHIs);
+  }
 };
 
 } // end anonymous namespace
-- 
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