From b929e21fbea4c0483bcddb9dfd02caf779a83d41 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Tue, 3 May 2022 11:01:05 -0400
Subject: [PATCH] lavapipe: lower quad_broadcast intrinsics

not supported by gallivm

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16301>
---
 src/gallium/frontends/lavapipe/lvp_pipeline.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gallium/frontends/lavapipe/lvp_pipeline.c b/src/gallium/frontends/lavapipe/lvp_pipeline.c
index 81d5a9c32a9..78bd0bc5c96 100644
--- a/src/gallium/frontends/lavapipe/lvp_pipeline.c
+++ b/src/gallium/frontends/lavapipe/lvp_pipeline.c
@@ -900,6 +900,12 @@ lvp_shader_compile_to_ir(struct lvp_pipeline *pipeline,
    }
    assert(exec_list_length(&nir->functions) == 1);
 
+   struct nir_lower_subgroups_options subgroup_opts = {0};
+   subgroup_opts.lower_quad = true;
+   subgroup_opts.ballot_components = 4;
+   subgroup_opts.ballot_bit_size = 32;
+   NIR_PASS_V(nir, nir_lower_subgroups, &subgroup_opts);
+
    NIR_PASS_V(nir, nir_lower_variable_initializers, ~0);
    NIR_PASS_V(nir, nir_split_var_copies);
    NIR_PASS_V(nir, nir_split_per_member_structs);