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radeonsi: scalarize IO instructions

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The next commit will rely on this.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14414>
This commit is contained in:
Marek Olšák
2022-01-01 23:03:23 -05:00
committed by Marge Bot
parent a373b558c0
commit db92451e23
1 changed files with 6 additions and 0 deletions
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src/gallium/drivers/radeonsi/si_shader_nir.c
+6
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@@ -266,6 +266,12 @@ static void si_lower_nir(struct si_screen *sscreen, struct nir_shader *nir)
NIR_PASS_V(nir, nir_lower_system_values);
NIR_PASS_V(nir, nir_lower_compute_system_values, NULL);
/* si_nir_kill_outputs and ac_nir_optimize_outputs require outputs to be scalar. */
if (nir->info.stage == MESA_SHADER_VERTEX ||
nir->info.stage == MESA_SHADER_TESS_EVAL ||
nir->info.stage == MESA_SHADER_GEOMETRY)
NIR_PASS_V(nir, nir_lower_io_to_scalar, nir_var_shader_out);
if (nir->info.stage == MESA_SHADER_COMPUTE) {
if (nir->info.cs.derivative_group == DERIVATIVE_GROUP_QUADS) {
/* If we are shuffling local_invocation_id for quad derivatives, we