From 8b81d0633f1ebaf1392e6509b34694de05c94de7 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Tue, 21 Jul 2020 20:53:57 -0400
Subject: [PATCH] AMDGPU: global_atomic_csub is not always dereferenceable

---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index fa2a96d33952..c92065f7495a 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -1137,7 +1137,6 @@ bool SITargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     Info.align.reset();
     Info.flags = MachineMemOperand::MOLoad |
                  MachineMemOperand::MOStore |
-                 MachineMemOperand::MODereferenceable |
                  MachineMemOperand::MOVolatile;
     return true;
   }