commit ef95ba8cdd1491a945cebc1cdc12ca0f066afc32
author Rhys Perry <pendingchaos02@gmail.com> Mon Apr 27 21:17:26 2020 +0100
committer Marge Bot <eric+marge@anholt.net> Wed Nov 04 11:50:37 2020 +0000
tree 58973c277e902f9749e9a84540ef04cb8c63110a
parent 8ed7cad75f37e22d30667f3fcf98421fa860e9ee

aco: implement some 16-bit arithmetic instead of lowering

fossil-db (parallel-rdp, Navi):
Totals from 210 (30.75% of 683) affected shaders:
SGPRs: 9704 -> 10248 (+5.61%)
VGPRs: 5884 -> 5368 (-8.77%)
CodeSize: 1155564 -> 1098752 (-4.92%)
Instrs: 199927 -> 189940 (-5.00%)
Cycles: 20438392 -> 19860124 (-2.83%)

v2: use divergence analysis to determine which instructions to lower.

Co-Authored-by: Daniel Schürmann <daniel@schuermann.dev>
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4791>