Mesa (main): radeonsi: scalarize IO instructions
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Fri Apr 22 22:47:27 UTC 2022
Module: Mesa
Branch: main
Commit: db92451e23ed8d6a592d02111c6d949a5d6962b9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=db92451e23ed8d6a592d02111c6d949a5d6962b9
Author: Marek Olšák <marek.olsak at amd.com>
Date: Sat Jan 1 23:03:23 2022 -0500
radeonsi: scalarize IO instructions
The next commit will rely on this.
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14414>
---
src/gallium/drivers/radeonsi/si_shader_nir.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 7e455ac2826..5c27d4a9e0f 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -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
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