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panvk: fix bi_emit_alu calling bi_make_vec_to

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bi_emit_alu needs to fully set the vector of bi_index pass to
bi_make_vec_to, as it is expected by the callee.

Fixes: 3cc6a4c5 ("pan/bi: Handle swizzles in i2i8")
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35642>
(cherry picked from commit bc973d687c)
This commit is contained in:
Romaric Jodin 2025-06-19 17:22:31 +02:00 • committed by Eric Engestrom
parent 2fb2db4d3a
commit c76a7410dc
2 changed files with 6 additions and 3 deletions
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2
.pick_status.json
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@ -4824,7 +4824,7 @@
"description": "panvk: fix bi_emit_alu calling bi_make_vec_to",
"nominated": true,
"nomination_type": 2,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "3cc6a4c5d033ae0ca6d53a53aa87a909988e3515",
"notes": null

7
src/panfrost/compiler/bifrost_compile.c
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@ -2893,11 +2893,14 @@ bi_emit_alu(bi_builder *b, nir_alu_instr *instr)
bi_index idx = bi_src_index(&instr->src[0].src);
unsigned factor = src_sz / 8;
unsigned chan[4] = {0};
bi_index idxs[4];
for (unsigned i = 0; i < comps; ++i)
for (unsigned i = 0; i < comps; ++i) {
idxs[i] = idx;
chan[i] = instr->src[0].swizzle[i] * factor;
}
bi_make_vec_to(b, dst, &idx, chan, comps, 8);
bi_make_vec_to(b, dst, idxs, chan, comps, 8);
return;
}