nir: Fix shader calls with nir_opt_dead_write_vars.
Fixes: 5a28893279
("spirv,nir: Add ray-tracing intrinsics")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10096>
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@ -169,6 +169,20 @@ remove_dead_write_vars_local(void *mem_ctx, nir_shader *shader, nir_block *block
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break;
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}
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case nir_intrinsic_execute_callable: {
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/* Mark payload as it can be used by the callee */
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nir_deref_instr *src = nir_src_as_deref(intrin->src[1]);
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clear_unused_for_read(&unused_writes, src);
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break;
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}
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case nir_intrinsic_trace_ray: {
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/* Mark payload as it can be used by the callees */
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nir_deref_instr *src = nir_src_as_deref(intrin->src[10]);
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clear_unused_for_read(&unused_writes, src);
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break;
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}
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case nir_intrinsic_load_deref: {
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nir_deref_instr *src = nir_src_as_deref(intrin->src[0]);
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if (nir_deref_mode_must_be(src, nir_var_read_only_modes))
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