tree d861027ae074a97177a083b4a1417e293a6e7337
parent 621a7bd07c0ad460d490e0ff5f3668db9782a271
author Chris Forbes <chrisforbes@google.com> 1555689734 -0700
committer Chris Forbes <chrisforbes@google.com> 1556047080 +0000

Add support for indexing into arrays of image descriptors

- OpLoad of pointer to descriptor is passthrough; reflect that in Kind.
- Actually pass through all the descriptor types in EmitLoad
- Fix Walk*AccessChain to not create useless divergence; constant offset
  was added in the wrong place.
- Adjust WalkAccessChain to adjust pointers into descriptor arrays using
  the descriptor stride
- Adjust storage image descriptor content to not assume layerPitch ==
slicePitch, since that isn't true.

Bug: b/131082089
Test: dEQP-VK.binding_model.*
Test: dEQP-VK.spirv_assembly.*
Test: dEQP-VK.glsl.*
Change-Id: I6cc4ae7b0fdeb54ede111f532c7e3fd1f108803c
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29549
Tested-by: Chris Forbes <chrisforbes@google.com>
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>