tree 2c483bc2f06765737aa79695ba3d6fe866814440
parent 44dd6a00c388ba09f7ac64a3921b4717a89f949c
author GregF <greg@LunarG.com> 1506040822 -0600
committer GregF <greg@LunarG.com> 1506546365 -0600

Enable HLSL legalization

Also added known-good mechanism to fetch latest validated spirv-tools.
Also added -Od and -Os to disable optimizer and optimize for size.

Fetching spirv-tools is optional for both glsl and hlsl. Legalization
of hlsl is done by default if spirv-opt is present at cmake time.
Optimization for glsl is currently done through the option -Os.

Legalization testing is currently only done on four existing shaders.
A separate baseLegalResults directory holds those results. All previous
testing is done with the optimizer disabled.