---
 src/gallium/drivers/radeonsi/si_shader_nir.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c 
b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 20b3beccc4..fcc857f838 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -124,6 +124,32 @@ static void scan_instruction(struct tgsi_shader_info *info,
                case nir_intrinsic_ssbo_atomic_comp_swap:
                        info->writes_memory = true;
                        break;
+               case nir_intrinsic_interp_var_at_centroid:
+               case nir_intrinsic_interp_var_at_sample:
+               case nir_intrinsic_interp_var_at_offset: {
+                       enum glsl_interp_mode interp =
+                               intr->variables[0]->var->data.interpolation;
+                       switch (interp) {
+                       case INTERP_MODE_SMOOTH:
+                       case INTERP_MODE_NONE:
+                               if (intr->intrinsic == 
nir_intrinsic_interp_var_at_centroid)
+                                       info->uses_persp_centroid = true;
+                               else
+                                       info->uses_persp_center = true;
+                               break;
+                       case INTERP_MODE_NOPERSPECTIVE:
+                               if (intr->intrinsic == 
nir_intrinsic_interp_var_at_centroid)
+                                       info->uses_linear_centroid = true;
+                               else
+                                       info->uses_linear_center = true;
+                               break;
+                       case INTERP_MODE_FLAT:
+                               break;
+                       default:
+                               unreachable("Unsupported interpoation type");
+                       }
+                       break;
+               }
                default:
                        break;
                }
-- 
2.14.3

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