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nir: Use deref intrinsics to set writes_memory when gathering info

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4815>
This commit is contained in:
Caio Marcelo de Oliveira Filho
2020-05-05 08:57:12 -07:00
committed by Marge Bot
parent d50069ab08
commit d89c28d314
1 changed files with 29 additions and 0 deletions
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29
src/compiler/nir/nir_gather_info.c
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@@ -279,6 +279,20 @@ try_mask_partial_io(nir_shader *shader, nir_variable *var,
return true;
}
static void
update_memory_written_for_deref(nir_shader *shader, nir_deref_instr *deref)
{
switch (deref->mode) {
case nir_var_mem_ssbo:
case nir_var_mem_global:
shader->info.writes_memory = true;
break;
default:
/* Nothing to do. */
break;
}
}
static void
gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
void *dead_ctx)
@@ -326,6 +340,8 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
}
}
}
if (instr->intrinsic == nir_intrinsic_store_deref)
update_memory_written_for_deref(shader, deref);
break;
}
@@ -471,6 +487,19 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
shader->info.writes_memory = true;
break;
case nir_intrinsic_deref_atomic_add:
case nir_intrinsic_deref_atomic_imin:
case nir_intrinsic_deref_atomic_umin:
case nir_intrinsic_deref_atomic_imax:
case nir_intrinsic_deref_atomic_umax:
case nir_intrinsic_deref_atomic_and:
case nir_intrinsic_deref_atomic_or:
case nir_intrinsic_deref_atomic_xor:
case nir_intrinsic_deref_atomic_exchange:
case nir_intrinsic_deref_atomic_comp_swap:
update_memory_written_for_deref(shader, nir_src_as_deref(instr->src[0]));
break;
default:
break;
}