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-rw-r--r--src/compiler/nir/nir.h2
-rw-r--r--src/compiler/nir/nir_opt_peephole_select.c39
2 files changed, 32 insertions, 9 deletions
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 2bbfb3c6b15..54f9c64a3a3 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -3198,7 +3198,7 @@ bool nir_opt_move_comparisons(nir_shader *shader);
bool nir_opt_move_load_ubo(nir_shader *shader);
bool nir_opt_peephole_select(nir_shader *shader, unsigned limit,
- bool indirect_load_ok);
+ bool indirect_load_ok, bool expensive_alu_ok);
bool nir_opt_remove_phis_impl(nir_function_impl *impl);
bool nir_opt_remove_phis(nir_shader *shader);
diff --git a/src/compiler/nir/nir_opt_peephole_select.c b/src/compiler/nir/nir_opt_peephole_select.c
index 6808d3eda6c..b27cdd28a99 100644
--- a/src/compiler/nir/nir_opt_peephole_select.c
+++ b/src/compiler/nir/nir_opt_peephole_select.c
@@ -59,7 +59,8 @@
static bool
block_check_for_allowed_instrs(nir_block *block, unsigned *count,
- bool alu_ok, bool indirect_load_ok)
+ bool alu_ok, bool indirect_load_ok,
+ bool expensive_alu_ok)
{
nir_foreach_instr(instr, block) {
switch (instr->type) {
@@ -117,6 +118,25 @@ block_check_for_allowed_instrs(nir_block *block, unsigned *count,
case nir_op_vec3:
case nir_op_vec4:
break;
+
+ case nir_op_fcos:
+ case nir_op_fdiv:
+ case nir_op_fexp2:
+ case nir_op_flog2:
+ case nir_op_fmod:
+ case nir_op_fpow:
+ case nir_op_frcp:
+ case nir_op_frem:
+ case nir_op_frsq:
+ case nir_op_fsin:
+ case nir_op_idiv:
+ case nir_op_irem:
+ case nir_op_udiv:
+ if (!alu_ok || !expensive_alu_ok)
+ return false;
+
+ break;
+
default:
if (!alu_ok) {
/* It must be a move-like operation. */
@@ -160,7 +180,8 @@ block_check_for_allowed_instrs(nir_block *block, unsigned *count,
static bool
nir_opt_peephole_select_block(nir_block *block, nir_shader *shader,
- unsigned limit, bool indirect_load_ok)
+ unsigned limit, bool indirect_load_ok,
+ bool expensive_alu_ok)
{
if (nir_cf_node_is_first(&block->cf_node))
return false;
@@ -181,9 +202,9 @@ nir_opt_peephole_select_block(nir_block *block, nir_shader *shader,
/* ... and those blocks must only contain "allowed" instructions. */
unsigned count = 0;
if (!block_check_for_allowed_instrs(then_block, &count, limit != 0,
- indirect_load_ok) ||
+ indirect_load_ok, expensive_alu_ok) ||
!block_check_for_allowed_instrs(else_block, &count, limit != 0,
- indirect_load_ok))
+ indirect_load_ok, expensive_alu_ok))
return false;
if (count > limit)
@@ -250,14 +271,15 @@ nir_opt_peephole_select_block(nir_block *block, nir_shader *shader,
static bool
nir_opt_peephole_select_impl(nir_function_impl *impl, unsigned limit,
- bool indirect_load_ok)
+ bool indirect_load_ok, bool expensive_alu_ok)
{
nir_shader *shader = impl->function->shader;
bool progress = false;
nir_foreach_block_safe(block, impl) {
progress |= nir_opt_peephole_select_block(block, shader, limit,
- indirect_load_ok);
+ indirect_load_ok,
+ expensive_alu_ok);
}
if (progress)
@@ -268,14 +290,15 @@ nir_opt_peephole_select_impl(nir_function_impl *impl, unsigned limit,
bool
nir_opt_peephole_select(nir_shader *shader, unsigned limit,
- bool indirect_load_ok)
+ bool indirect_load_ok, bool expensive_alu_ok)
{
bool progress = false;
nir_foreach_function(function, shader) {
if (function->impl)
progress |= nir_opt_peephole_select_impl(function->impl, limit,
- indirect_load_ok);
+ indirect_load_ok,
+ expensive_alu_ok);
}
return progress;