Shader: Add support for using mediump accuracy
This series adds support for emitting code that uses mixed highp and mediump. It has been tested on a radeonsi driver that was patched to enable fp16. There are some regressions when running the CTS that have no obvious reason on the TGSI/GLSL level.
The related mesa patches are in mesa/mesa!16321
Edited by Gert Wollny