tree 690d943fd1d37bc0d942c74205386a77f1377bc7
parent b16c5867010e82e8375751721f3f8c29073909e9
author Ben Clayton <bclayton@google.com> 1557301861 +0100
committer Chris Forbes <chrisforbes@google.com> 1557363977 +0000

SpirvShader: Implement OpControlBarrier.

Use the new coroutines to yield when hitting a ControlBarrier.
A barrier pushes the shader subgroup to the end of the compute invocation queue, which forces all subgroups to be brought to the fence before continuing.

Tests: dEQP-VK.spirv_assembly.instruction.compute.workgroup_memory.*
Tests: dEQP-VK.subgroups.basic.compute.*
Tests: dEQP-VK.compute.basic.*

Bug: b/131672705
Bug: b/132232716
Change-Id: Id78be9ce9d9455cb2cb7254482568985845b8b6a
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/30851
Presubmit-Ready: Ben Clayton <bclayton@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>