amd/common: scan which components of gl_LocalInvocationID are used

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>

2 files changed, 7 insertions, 1 deletions

diff --git a/src/amd/common/ac_shader_info.c b/src/amd/common/ac_shader_info.c
index 01949770d68..87744ed23e1 100644
--- a/src/amd/common/ac_shader_info.c
+++ b/src/amd/common/ac_shader_info.c
@@ -45,11 +45,16 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, struct ac_shader_info *info)
 	case nir_intrinsic_load_num_work_groups:
 		info->cs.uses_grid_size = true;
 		break;
+	case nir_intrinsic_load_local_invocation_id:
 	case nir_intrinsic_load_work_group_id: {
 		unsigned mask = nir_ssa_def_components_read(&instr->dest.ssa);
 		while (mask) {
 			unsigned i = u_bit_scan(&mask);
-			info->cs.uses_block_id[i] = true;
+
+			if (instr->intrinsic == nir_intrinsic_load_work_group_id)
+				info->cs.uses_block_id[i] = true;
+			else
+				info->cs.uses_thread_id[i] = true;
 		}
 		break;
 	}
diff --git a/src/amd/common/ac_shader_info.h b/src/amd/common/ac_shader_info.h
index 7beefd02ac5..0136d5af403 100644
--- a/src/amd/common/ac_shader_info.h
+++ b/src/amd/common/ac_shader_info.h
@@ -44,6 +44,7 @@ struct ac_shader_info {
 	struct {
 		bool uses_grid_size;
 		bool uses_block_id[3];
+		bool uses_thread_id[3];
 	} cs;
 };