Module: Mesa Branch: master Commit: 34cc6a804ec92b5e74cde5b346828874737276a8 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=34cc6a804ec92b5e74cde5b346828874737276a8
Author: Eric Anholt <[email protected]> Date: Wed Nov 5 12:41:08 2014 -0800 gallium: Add a nir-to-TGSI pass. The goal is to replace glsl_to_tgsi.cpp and its supporting code (~10k LOC). This code ends up being smaller because NIR has many lowering passes that help it map better to TGSI than GLSL IR does. As a benefit, this brings NIR optimizations to TGSI-only drivers. Many of the softpipe shaders I've looked at end up being significantly shorter. Some potentially relevant changes to TGSI consumers: - All immediates are now UINT typed. This means they're less legible in printouts, but means that they get deduplicated better (no more multiple copies of 0x0!) - Sampler views are not currently declared. - nir_registers don't have their live ranges tracked, so TGSI temp usage may go up with a lot of control flow. - nir_lower_vec_to_mov naively inserts movs instead of trying to coalesce the movs with the generators of the ssa values, sometimes increasing instruction count. Acked-by: Marek Olšák <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3395> --- src/gallium/auxiliary/Makefile.sources | 1 + src/gallium/auxiliary/meson.build | 2 + src/gallium/auxiliary/nir/nir_to_tgsi.c | 2647 +++++++++++++++++++++++++++++++ src/gallium/auxiliary/nir/nir_to_tgsi.h | 33 + 4 files changed, 2683 insertions(+) Diff: http://cgit.freedesktop.org/mesa/mesa/diff/?id=34cc6a804ec92b5e74cde5b346828874737276a8 _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
