tree ca699c18027d38dbce4ae8bd8f5c55816e27f160
parent 4c1b8c87c9aa532b5eaa5e5793f398619544c8b4
author Nicolas Capens <capn@google.com> 1553026955 -0400
committer Nicolas Capens <nicolascapens@google.com> 1553272588 +0000

Implement atomic load/store

SIMD vector load and store are already atomic on x86 and ARM, and
Vulkan only supports atomic operations on "scalar 32-bit integer type".

Memory order semantics are handled in a follow-up change.

Bug b/127472316

Test: dEQP-VK.spirv_assembly.instruction.compute.opatomic.load
Test: dEQP-VK.spirv_assembly.instruction.compute.opatomic.store
Change-Id: I4481fe7b7aa792b63f516bd3cb1aab1d773bbcbd
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27649
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>