AMDGPU: global_atomic_csub is not always dereferenceable

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index fa2a96d..c92065f 100644 (file)
--- 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;
   }