tree 3d1b4afe96626ceee6ae332bbd3801c206e9f94c
parent 7d3a860bdf7d9a71fab7ddaf0cd3ad0bdd035686
author Nicolas Capens <capn@google.com> 1631793924 -0400
committer Nicolas Capens <nicolascapens@google.com> 1632159342 +0000

Cache optimized SPIR-V binaries instead of compiled shaders

Previously the optimization of the SPIR-V binary and the compilation
into a SpirvShader object took place in the same function, and the
latter would be cached for potential reuse. This change splits the
binary optimization step from the compilation step, and caches the
result of the former instead.

Since spirvtools::Optimizer processes an entire SPIR-V module, while
SpirvShader objects represent a single entry point, this will enable
subsequent changes to reuse optimized SPIR-V binaries containing
multiple entry points. This change still uses the same cache key,
which includes the entry point.

Bug: b/197982536
Change-Id: I64b185512b03beb9307b1606f505c9a854b876a1
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/57129
Tested-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>