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r600/sfn: Don't rewrite TESS_EVAL inner tess level outputs

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Fixes: 5cd3e3950 (r600/sfn: Make sure all components are usable when lowering TF inputs)

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23518>
(cherry picked from commit 9ace53f3cc)
This commit is contained in:
Gert Wollny 2023-05-31 17:45:03 +02:00 • committed by Eric Engestrom
parent be94874276
commit 20a8a29ffc
2 changed files with 2 additions and 2 deletions
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2
.pick_status.json
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@ -3487,7 +3487,7 @@
"description": "r600/sfn: Don't rewrite TESS_EVAL inner tess level outputs",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "5cd3e395037250946ba2519600836341df02c8ca"
},

2
src/gallium/drivers/r600/sfn/sfn_nir_lower_tess_io.cpp
View file

@ -456,7 +456,7 @@ r600_lower_tess_io_impl(nir_builder *b, nir_instr *instr, enum pipe_prim_type pr
tf->src[0] = nir_src_for_ssa(addr_outer);
nir_ssa_dest_init(&tf->instr, &tf->dest, tf->num_components, 32, NULL);
nir_builder_instr_insert(b, &tf->instr);
if (ncomps < 4) {
if (ncomps < 4 && b->shader->info.stage != MESA_SHADER_TESS_EVAL) {
auto undef = nir_ssa_undef(b, 1, 32);
nir_ssa_def *srcs[4] = {undef, undef, undef, undef};
for (unsigned i = 0; i < ncomps; ++i)