From d2e016c37dd52e8a509b274435718548b121d28f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@amd.com>
Date: Tue, 15 Apr 2025 15:56:26 -0400
Subject: [PATCH] ac/nir: don't store tess levels for TES in TCS if no_varying
 is set
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Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34544>
---
 src/amd/common/nir/ac_nir_lower_tess_io_to_mem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/amd/common/nir/ac_nir_lower_tess_io_to_mem.c b/src/amd/common/nir/ac_nir_lower_tess_io_to_mem.c
index e018d53f2e1..7ac41c2b1be 100644
--- a/src/amd/common/nir/ac_nir_lower_tess_io_to_mem.c
+++ b/src/amd/common/nir/ac_nir_lower_tess_io_to_mem.c
@@ -595,6 +595,9 @@ lower_hs_output_store(nir_builder *b,
             ac_nir_store_var_components(b, st->tcs_tess_level_outer, store_val,
                                         component, write_mask);
       }
+
+      if (semantics.no_varying)
+         st->tes_inputs_read &= ~BITFIELD64_BIT(semantics.location);
    }
 
    return NIR_LOWER_INSTR_PROGRESS_REPLACE;