#include "nir_builder.h"
-static void
-lower_pos_write(nir_builder *b, struct nir_instr *instr)
+static bool
+lower_pos_write(nir_builder *b, nir_instr *instr, UNUSED void *cb_data)
{
if (instr->type != nir_instr_type_intrinsic)
- return;
+ return false;
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
if (intr->intrinsic != nir_intrinsic_store_deref)
- return;
+ return false;
nir_variable *var = nir_intrinsic_get_var(intr, 0);
if (var->data.mode != nir_var_shader_out ||
var->data.location != VARYING_SLOT_POS)
- return;
+ return false;
b->cursor = nir_before_instr(&intr->instr);
0.5),
nir_channel(b, pos, 3));
nir_instr_rewrite_src(&intr->instr, intr->src + 1, nir_src_for_ssa(def));
+ return true;
}
void
shader->info.stage != MESA_SHADER_TESS_EVAL)
return;
- nir_foreach_function(function, shader) {
- if (function->impl) {
- nir_builder b;
- nir_builder_init(&b, function->impl);
-
- nir_foreach_block(block, function->impl) {
- nir_foreach_instr_safe(instr, block) {
- lower_pos_write(&b, instr);
- }
- }
-
- nir_metadata_preserve(function->impl, nir_metadata_block_index |
- nir_metadata_dominance);
- }
- }
+ nir_shader_instructions_pass(shader, lower_pos_write,
+ nir_metadata_block_index |
+ nir_metadata_dominance,
+ NULL);
}