The pixel shader is built with rslc's builder instead of printed as text
and parsed again, on Vulkan, D3D11, D3D12 and Metal. Built and printed
stages compile to the same SPIR-V and DXBC words: 15,619 random pixel
uids and host configs, with and without subgroup reduction, and every
uid the text refuses the builder refuses too.
The builder's flags say what the text's header said of the device:
subgroup operations, an inverted gl_HelperInvocation and subgroup
operations broken by discard. Vulkan and Metal pass them; Metal builds
at MSL 2.3, as its text compiles.
OpenGL still prints the stage as text until rslc prints framebuffer
fetch, conservative depth and subgroups in GLSL.
LibretroAdmin
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