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-rw-r--r--src/gallium/drivers/panfrost/midgard/midgard_compile.c25
-rw-r--r--src/gallium/drivers/radeonsi/si_shader_nir.c24
-rw-r--r--src/gallium/drivers/vc4/vc4_program.c22
3 files changed, 71 insertions, 0 deletions
diff --git a/src/gallium/drivers/panfrost/midgard/midgard_compile.c b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
index 29f3ce7ff71..9c7928decf6 100644
--- a/src/gallium/drivers/panfrost/midgard/midgard_compile.c
+++ b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
@@ -885,6 +885,10 @@ static void
optimise_nir(nir_shader *nir)
{
bool progress;
+ unsigned lower_flrp =
+ (nir->options->lower_flrp16 ? 16 : 0) |
+ (nir->options->lower_flrp32 ? 32 : 0) |
+ (nir->options->lower_flrp64 ? 64 : 0);
NIR_PASS(progress, nir, nir_lower_regs_to_ssa);
NIR_PASS(progress, nir, midgard_nir_lower_fdot2);
@@ -909,6 +913,27 @@ optimise_nir(nir_shader *nir)
NIR_PASS(progress, nir, nir_opt_peephole_select, 64, false, true);
NIR_PASS(progress, nir, nir_opt_algebraic);
NIR_PASS(progress, nir, nir_opt_constant_folding);
+
+ if (lower_flrp != 0) {
+ bool lower_flrp_progress;
+ NIR_PASS(lower_flrp_progress,
+ nir,
+ nir_lower_flrp,
+ lower_flrp,
+ false /* always_precise */,
+ nir->options->lower_ffma);
+ if (lower_flrp_progress) {
+ NIR_PASS(progress, nir,
+ nir_opt_constant_folding);
+ progress = true;
+ }
+
+ /* Nothing should rematerialize any flrps, so we only
+ * need to do this lowering once.
+ */
+ lower_flrp = 0;
+ }
+
NIR_PASS(progress, nir, nir_opt_undef);
NIR_PASS(progress, nir, nir_opt_loop_unroll,
nir_var_shader_in |
diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 87100fbed19..afc8d5f3b78 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -815,6 +815,11 @@ void
si_nir_opts(struct nir_shader *nir)
{
bool progress;
+ unsigned lower_flrp =
+ (sel->nir->options->lower_flrp16 ? 16 : 0) |
+ (sel->nir->options->lower_flrp32 ? 32 : 0) |
+ (sel->nir->options->lower_flrp64 ? 64 : 0);
+
do {
progress = false;
@@ -844,6 +849,25 @@ si_nir_opts(struct nir_shader *nir)
NIR_PASS(progress, nir, nir_opt_algebraic);
NIR_PASS(progress, nir, nir_opt_constant_folding);
+ if (lower_flrp != 0) {
+ bool lower_flrp_progress;
+
+ NIR_PASS(lower_flrp_progress, sel->nir, nir_lower_flrp,
+ lower_flrp,
+ false /* always_precise */,
+ sel->nir->options->lower_ffma);
+ if (lower_flrp_progress) {
+ NIR_PASS(progress, sel->nir,
+ nir_opt_constant_folding);
+ progress = true;
+ }
+
+ /* Nothing should rematerialize any flrps, so we only
+ * need to do this lowering once.
+ */
+ lower_flrp = 0;
+ }
+
NIR_PASS(progress, nir, nir_opt_undef);
NIR_PASS(progress, nir, nir_opt_conditional_discard);
if (nir->options->max_unroll_iterations) {
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c
index 2ca3f907135..a2af55d6421 100644
--- a/src/gallium/drivers/vc4/vc4_program.c
+++ b/src/gallium/drivers/vc4/vc4_program.c
@@ -1527,6 +1527,10 @@ static void
vc4_optimize_nir(struct nir_shader *s)
{
bool progress;
+ unsigned lower_flrp =
+ (s->options->lower_flrp16 ? 16 : 0) |
+ (s->options->lower_flrp32 ? 32 : 0) |
+ (s->options->lower_flrp64 ? 64 : 0);
do {
progress = false;
@@ -1542,6 +1546,24 @@ vc4_optimize_nir(struct nir_shader *s)
NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
NIR_PASS(progress, s, nir_opt_algebraic);
NIR_PASS(progress, s, nir_opt_constant_folding);
+ if (lower_flrp != 0) {
+ bool lower_flrp_progress;
+
+ NIR_PASS(lower_flrp_progress, s, nir_lower_flrp,
+ lower_flrp,
+ false /* always_precise */,
+ s->options->lower_ffma);
+ if (lower_flrp_progress) {
+ NIR_PASS(progress, s, nir_opt_constant_folding);
+ progress = true;
+ }
+
+ /* Nothing should rematerialize any flrps, so we only
+ * need to do this lowering once.
+ */
+ lower_flrp = 0;
+ }
+
NIR_PASS(progress, s, nir_opt_undef);
NIR_PASS(progress, s, nir_opt_loop_unroll,
nir_var_shader_in |