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nir/lower_clip_disable: Fix store writemask

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We're storing into the array element, not the whole variable.

Fixes: fb2fe80 ("nir: add lowering pass for clip plane enabling")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7274>
(cherry picked from commit 77fcb01f7f)
This commit is contained in:
Connor Abbott 2021-04-22 11:58:35 +02:00 • committed by Dylan Baker
parent 0a1b6f7cc4
commit a840d01c57
2 changed files with 3 additions and 2 deletions
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2
.pick_status.json
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@ -607,7 +607,7 @@
"description": "nir/lower_clip_disable: Fix store writemask",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"master_sha": null,
"because_sha": "fb2fe802f638d7a70f0d00ec1d496f317d241765"
},

3
src/compiler/nir/nir_lower_clip_disable.c
View file

@ -101,7 +101,8 @@ lower_clip_plane_store(nir_intrinsic_instr *instr, unsigned clip_plane_enable, n
if (clip_plane_enable & (1 << plane))
return false;
nir_store_deref(b, deref, nir_imm_int(b, 0), 1 << plane);
assert(nir_intrinsic_write_mask(instr) == 1);
nir_store_deref(b, deref, nir_imm_int(b, 0), 1);
} else {
/* storing using a variable index */
nir_ssa_def *index = nir_ssa_for_src(b, deref->arr.index, 1);