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Unverified Commit 9bd10853 authored by Matt Arsenault's avatar Matt Arsenault Committed by GitHub
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AMDGPU: Undo atomicrmw add/sub/xor 0 -> atomicrmw or canonicalization (#87533) 

InstCombine transforms add of 0 to or of 0. For system atomics, this is
problematic because while PCIe supports add, it does not support the
other operations. Undo this for system scope atomics.
parent 0d2bb7f0
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