[Mesa-dev] [PATCH 1/3] radv: scan if shaders use discard (or kill) instructions

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
 src/amd/vulkan/radv_shader.h      | 1 +
 src/amd/vulkan/radv_shader_info.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/src/amd/vulkan/radv_shader.h b/src/amd/vulkan/radv_shader.h
index 6588b78772..c28407352a 100644
--- a/src/amd/vulkan/radv_shader.h
+++ b/src/amd/vulkan/radv_shader.h
@@ -159,6 +159,7 @@ struct radv_shader_info {
                bool has_pcoord;
                bool prim_id_input;
                bool layer_input;
+               bool uses_kill;
        } ps;
        struct {
                bool uses_grid_size;
diff --git a/src/amd/vulkan/radv_shader_info.c 
b/src/amd/vulkan/radv_shader_info.c
index 1fb350faed..4e6dbea5ac 100644
--- a/src/amd/vulkan/radv_shader_info.c
+++ b/src/amd/vulkan/radv_shader_info.c
@@ -246,6 +246,10 @@ gather_intrinsic_info(const nir_shader *nir, const 
nir_intrinsic_instr *instr,
                }
                break;
        }
+       case nir_intrinsic_discard:
+       case nir_intrinsic_discard_if:
+               info->ps.uses_kill = true;
+               break;
        default:
                break;
        }
-- 
2.17.0

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