Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2017-11-07T19:57:48+00:00 2017-11-07T19:57:48+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2017-11-07T19:57:48+00:00 urn:sha1:d1b45f3059e100d096327eb178c1bac365e564f1 - During IR emit, treat a "select" expression (`?:` operator) like any other `InvokeExpr`, since it will have an `__intrinsic_op` modifier attached to turn it into a `select` instruction. - During HLSL/GLSL emit from IR, turn a `select` instruction into a `?:` expression - Also add support for the `neg` instruction during HLSL/GLSL emit Note that right now we are assuming HLSL semantics for `?:` where it does not short-circuit. Correctly handling the GLSL case would require going back to special-case codegen for `SelectExpr`, but we can cross that bridge when we come to it.