3 commits

Author	SHA1	Message	Date
Georg Lehmann	6a16c504b8	nir/opt_generate_bfi: create vector and non 32bit bitfield_select ... Foz-DB Navi21: Totals from 1 (0.00% of 80255) affected shaders: Instrs: 295 -> 293 (-0.68%) CodeSize: 1588 -> 1572 (-1.01%) InvThroughput: 350 -> 347 (-0.86%) VALU: 231 -> 229 (-0.87%) Acked-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36141>	2025-07-21 20:42:32 +00:00
Alyssa Rosenzweig	2308960bed	treewide: use nir_mov_scalar ... Via Coccinelle patch: @@ expression builder, scalar; @@ -nir_channel(builder, scalar.def, scalar.comp) +nir_mov_scalar(builder, scalar) Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Georg Lehmann <dadschoorse@gmail.com> Reviewed-by: Eric Engestrom <eric@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36142>	2025-07-16 18:59:16 +00:00
Ian Romanick	6a09d33549	nir: Add a pass to generate BFI instructions from logical operations ... Inspired by a commit message in !30934, I set about optimizing the code generated for nir_copysign. It would be possible to just implement an opt_algebraic pattern for the specific values used by nir_copysign, but this casts a slightly larger net. As noted in a comment in the code, there may be variations of the pattern that this pass misses. The opt_algebraic pattern would miss them too. v2: Use nir_def_replace. Suggested by Alyssa. Allow more "root" instruction types. Suggested by Georg. v3: Treat extract_u16(x, 0) as (x & 0x0000ffff), and treat extract_u8(x, 0) as (x & 0x000000ff). v4: Use nir_scalar. Suggested by Georg. Reviewed-by: Georg Lehmann <dadschoorse@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31006>	2024-09-13 00:21:00 +00:00