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pco: boilerplate nir lowering passes

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Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Frank Binns <frank.binns@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32258>
This commit is contained in:
Simon Perretta 2024-05-23 14:44:47 +01:00 • committed by Marge Bot
parent bf22e4076b
commit 70aa0df836
1 changed files with 37 additions and 0 deletions
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37
src/imagination/pco/pco_nir.c
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@ -61,6 +61,9 @@ void pco_setup_nir_options(const struct pvr_device_info *dev_info,
*/
void pco_preprocess_nir(pco_ctx *ctx, nir_shader *nir)
{
if (nir->info.internal)
NIR_PASS(_, nir, nir_lower_returns);
if (pco_should_print_nir(nir)) {
puts("after pco_preprocess_nir:");
nir_print_shader(nir, stdout);
@ -69,6 +72,11 @@ void pco_preprocess_nir(pco_ctx *ctx, nir_shader *nir)
puts("finishme: pco_preprocess_nir");
}
static int glsl_type_size(const struct glsl_type *type, UNUSED bool bindless)
{
return glsl_count_attribute_slots(type, false);
}
/**
* \brief Lowers a NIR shader.
*
@ -77,6 +85,20 @@ void pco_preprocess_nir(pco_ctx *ctx, nir_shader *nir)
*/
void pco_lower_nir(pco_ctx *ctx, nir_shader *nir)
{
NIR_PASS(_,
nir,
nir_lower_io,
nir_var_shader_in | nir_var_shader_out,
glsl_type_size,
nir_lower_io_lower_64bit_to_32);
NIR_PASS(_, nir, nir_opt_dce);
NIR_PASS(_, nir, nir_opt_constant_folding);
NIR_PASS(_,
nir,
nir_io_add_const_offset_to_base,
nir_var_shader_in | nir_var_shader_out);
if (pco_should_print_nir(nir)) {
puts("after pco_lower_nir:");
nir_print_shader(nir, stdout);
@ -93,6 +115,21 @@ void pco_lower_nir(pco_ctx *ctx, nir_shader *nir)
*/
void pco_postprocess_nir(pco_ctx *ctx, nir_shader *nir)
{
NIR_PASS(_, nir, nir_opt_constant_folding);
NIR_PASS(_, nir, nir_opt_copy_prop_vars);
NIR_PASS(_, nir, nir_copy_prop);
NIR_PASS(_, nir, nir_opt_dce);
NIR_PASS(_, nir, nir_opt_cse);
/* Re-index everything. */
nir_foreach_function_with_impl (_, impl, nir) {
nir_index_blocks(impl);
nir_index_instrs(impl);
nir_index_ssa_defs(impl);
}
nir_shader_gather_info(nir, nir_shader_get_entrypoint(nir));
if (pco_should_print_nir(nir)) {
puts("after pco_postprocess_nir:");
nir_print_shader(nir, stdout);