nir: gather all IO info from IO intrinsics
nir_io_add_const_offset_to_base will shrink num_slots, so it's better to
call it before nir_shader_gather_info.
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6442>
diff --git a/src/compiler/nir/nir_gather_info.c b/src/compiler/nir/nir_gather_info.c
index 5f59dd2..03f0d15 100644
--- a/src/compiler/nir/nir_gather_info.c
+++ b/src/compiler/nir/nir_gather_info.c
@@ -297,6 +297,14 @@
gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
void *dead_ctx)
{
+ unsigned slot_mask = 0;
+
+ if (nir_intrinsic_infos[instr->intrinsic].index_map[NIR_INTRINSIC_IO_SEMANTICS] > 0) {
+ nir_io_semantics semantics = nir_intrinsic_io_semantics(instr);
+
+ slot_mask = BITFIELD64_RANGE(semantics.location, semantics.num_slots);
+ }
+
switch (instr->intrinsic) {
case nir_intrinsic_demote:
case nir_intrinsic_demote_if:
@@ -345,6 +353,41 @@
break;
}
+ case nir_intrinsic_load_input:
+ if (shader->info.stage == MESA_SHADER_TESS_EVAL)
+ shader->info.patch_inputs_read |= slot_mask;
+ else
+ shader->info.inputs_read |= slot_mask;
+ break;
+
+ case nir_intrinsic_load_per_vertex_input:
+ case nir_intrinsic_load_input_vertex:
+ case nir_intrinsic_load_interpolated_input:
+ shader->info.inputs_read |= slot_mask;
+ break;
+
+ case nir_intrinsic_load_output:
+ if (shader->info.stage == MESA_SHADER_TESS_CTRL)
+ shader->info.patch_outputs_read |= slot_mask;
+ else
+ shader->info.outputs_read |= slot_mask;
+ break;
+
+ case nir_intrinsic_load_per_vertex_output:
+ shader->info.outputs_read |= slot_mask;
+ break;
+
+ case nir_intrinsic_store_output:
+ if (shader->info.stage == MESA_SHADER_TESS_CTRL)
+ shader->info.patch_outputs_written |= slot_mask;
+ else
+ shader->info.outputs_written |= slot_mask;
+ break;
+
+ case nir_intrinsic_store_per_vertex_output:
+ shader->info.outputs_written |= slot_mask;
+ break;
+
case nir_intrinsic_load_draw_id:
case nir_intrinsic_load_frag_coord:
case nir_intrinsic_load_point_coord: