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microsoft/compiler: Fix barrier for wave ID computation

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Fixes: 2f8a8b59 ("microsoft/compiler: Add lowering passes for basic subgroup vars")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22225>
This commit is contained in:
Jesse Natalie
2023-03-30 13:24:14 -07:00
committed by Marge Bot
parent 477332a347
commit eeb67362da
1 changed files with 5 additions and 1 deletions
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src/microsoft/compiler/dxil_nir.c
+5 -1
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@@ -2074,7 +2074,11 @@ lower_subgroup_id(nir_builder *b, nir_instr *instr, void *data)
nir_store_deref(b, counter_deref, nir_imm_int(b, 0), 1);
nir_pop_if(b, nif);
nir_scoped_memory_barrier(b, NIR_SCOPE_WORKGROUP, NIR_MEMORY_ACQ_REL, nir_var_mem_shared);
nir_scoped_barrier(b,
.execution_scope = NIR_SCOPE_WORKGROUP,
.memory_scope = NIR_SCOPE_WORKGROUP,
.memory_semantics = NIR_MEMORY_ACQ_REL,
.memory_modes = nir_var_mem_shared);
nif = nir_push_if(b, nir_elect(b, 1));
nir_ssa_def *subgroup_id_first_thread = nir_deref_atomic_add(b, 32, &counter_deref->dest.ssa, nir_imm_int(b, 1));