Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2018-02-03T15:30:54+00:00 2018-02-03T15:30:54+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2018-02-03T15:30:54+00:00 urn:sha1:662f43fff6721c6cd013a8f1b2639c2e29fe6be3 The basic change is simple: remove support for all code generation paths other than the IR. There is a lot of vestigial code left, but the main logic in `ast-legalize.*` is gone. Doing this breaks a *lot* of tests, for various reasons: - We can no longer guarantee exactly matching DXBC or SPIR-V output after things pass through out IR - Many builtins don't have matching versions defined for GLSL output via IR (even when they had versions defined via the earlier approach that worked with the AST) - A lot of code creates intermediate values of opaque types in the IR, which turn into opaque-type temporaries that aren't allowed (this breaks many GLSL tests, but also some HLSL) I implemented some small fixes for issues that I could get working in the time I had, but most of the above are larger than made sense to fix in this commit. For now I'm disabling the tests that cause problems, but we will need to make a concerted effort to get things working on this new substrate if we are going to make good on our goals. 2017-07-21T19:19:01+00:00 Tim Foley tfoley@nvidia.com 2017-07-21T19:19:01+00:00 urn:sha1:0048a81aeb06d3942362c9f00f9ca004a79bc56b Fixes #133 We already had logic to skip adding `flat` to a vertex input, and this just extends it to not adding `flat` to a fragment output. Note that explicit qualifiers in the input HLSL/Slang will still be carried through to the output, so it is still possible for a Slang user to shoot themself in the foot with interpolation qualifiers.