We will make use of this in the following commit.
---
src/gallium/drivers/radeonsi/si_shader.h | 1 +
src/gallium/drivers/radeonsi/si_shader_nir.c | 78 +++++++++++---------
2 files changed, 43 insertions(+), 36 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/si_shader.h
b/src/gallium/drivers/radeonsi/si_shader.h
index f9f81a7bc1e..71ce27b2f55 100644
--- a/src/gallium/drivers/radeonsi/si_shader.h
+++ b/src/gallium/drivers/radeonsi/si_shader.h
@@ -710,6 +710,7 @@ void si_nir_scan_shader(const struct nir_shader *nir,
void si_nir_scan_tess_ctrl(const struct nir_shader *nir,
struct tgsi_tessctrl_info *out);
void si_lower_nir(struct si_shader_selector *sel);
+void si_nir_opts(struct nir_shader *nir);
/* Inline helpers. */
diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c
b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 4fe01ba0607..87100fbed19 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -811,6 +811,47 @@ void si_nir_scan_shader(const struct nir_shader *nir,
}
}
+void
+si_nir_opts(struct nir_shader *nir)
+{
+ bool progress;
+ do {
+ progress = false;
+
+ NIR_PASS_V(nir, nir_lower_vars_to_ssa);
+
+ NIR_PASS(progress, nir, nir_opt_copy_prop_vars);
+ NIR_PASS(progress, nir, nir_opt_dead_write_vars);
+
+ NIR_PASS_V(nir, nir_lower_alu_to_scalar);
+ NIR_PASS_V(nir, nir_lower_phis_to_scalar);
+
+ /* (Constant) copy propagation is needed for txf with offsets.
*/
+ NIR_PASS(progress, nir, nir_copy_prop);
+ NIR_PASS(progress, nir, nir_opt_remove_phis);
+ NIR_PASS(progress, nir, nir_opt_dce);
+ if (nir_opt_trivial_continues(nir)) {
+ progress = true;
+ NIR_PASS(progress, nir, nir_copy_prop);
+ NIR_PASS(progress, nir, nir_opt_dce);
+ }
+ NIR_PASS(progress, nir, nir_opt_if, true);
+ NIR_PASS(progress, nir, nir_opt_dead_cf);
+ NIR_PASS(progress, nir, nir_opt_cse);
+ NIR_PASS(progress, nir, nir_opt_peephole_select, 8, true, true);
+
+ /* Needed for algebraic lowering */
+ NIR_PASS(progress, nir, nir_opt_algebraic);
+ NIR_PASS(progress, nir, nir_opt_constant_folding);
+
+ NIR_PASS(progress, nir, nir_opt_undef);
+ NIR_PASS(progress, nir, nir_opt_conditional_discard);
+ if (nir->options->max_unroll_iterations) {
+ NIR_PASS(progress, nir, nir_opt_loop_unroll, 0);
+ }
+ } while (progress);
+}
+
/**
* Perform "lowering" operations on the NIR that are run once when the shader
* selector is created.
@@ -861,42 +902,7 @@ si_lower_nir(struct si_shader_selector* sel)
ac_lower_indirect_derefs(sel->nir, sel->screen->info.chip_class);
- bool progress;
- do {
- progress = false;
-
- NIR_PASS_V(sel->nir, nir_lower_vars_to_ssa);
-
- NIR_PASS(progress, sel->nir, nir_opt_copy_prop_vars);
- NIR_PASS(progress, sel->nir, nir_opt_dead_write_vars);
-
- NIR_PASS_V(sel->nir, nir_lower_alu_to_scalar);
- NIR_PASS_V(sel->nir, nir_lower_phis_to_scalar);
-
- /* (Constant) copy propagation is needed for txf with offsets.
*/
- NIR_PASS(progress, sel->nir, nir_copy_prop);
- NIR_PASS(progress, sel->nir, nir_opt_remove_phis);
- NIR_PASS(progress, sel->nir, nir_opt_dce);
- if (nir_opt_trivial_continues(sel->nir)) {
- progress = true;
- NIR_PASS(progress, sel->nir, nir_copy_prop);
- NIR_PASS(progress, sel->nir, nir_opt_dce);
- }
- NIR_PASS(progress, sel->nir, nir_opt_if, true);
- NIR_PASS(progress, sel->nir, nir_opt_dead_cf);
- NIR_PASS(progress, sel->nir, nir_opt_cse);
- NIR_PASS(progress, sel->nir, nir_opt_peephole_select, 8, true,
true);
-
- /* Needed for algebraic lowering */
- NIR_PASS(progress, sel->nir, nir_opt_algebraic);
- NIR_PASS(progress, sel->nir, nir_opt_constant_folding);
-
- NIR_PASS(progress, sel->nir, nir_opt_undef);
- NIR_PASS(progress, sel->nir, nir_opt_conditional_discard);
- if (sel->nir->options->max_unroll_iterations) {
- NIR_PASS(progress, sel->nir, nir_opt_loop_unroll, 0);
- }
- } while (progress);
+ si_nir_opts(sel->nir);
NIR_PASS_V(sel->nir, nir_lower_bool_to_int32);
--
2.20.1
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