*/
#include "nir.h"
-#include <main/imports.h>
/**
* SSA-based copy propagation
static bool is_move(nir_alu_instr *instr)
{
- if (instr->op != nir_op_fmov &&
- instr->op != nir_op_imov)
+ assert(instr->src[0].src.is_ssa);
+
+ if (instr->op != nir_op_mov)
return false;
if (instr->dest.saturate)
if (instr->src[0].abs || instr->src[0].negate)
return false;
- if (!instr->src[0].src.is_ssa)
- return false;
-
return true;
}
static bool is_vec(nir_alu_instr *instr)
{
for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++) {
- if (!instr->src[i].src.is_ssa)
- return false;
+ assert(instr->src[i].src.is_ssa);
/* we handle modifiers in a separate pass */
if (instr->src[i].abs || instr->src[i].negate)
return false;
}
- return instr->op == nir_op_vec2 ||
- instr->op == nir_op_vec3 ||
- instr->op == nir_op_vec4;
+ assert(instr->dest.dest.is_ssa);
+ return nir_op_is_vec(instr->op);
}
static bool
copy_prop_src(nir_src *src, nir_instr *parent_instr, nir_if *parent_if,
unsigned num_components)
{
- if (!src->is_ssa) {
- if (src->reg.indirect)
- return copy_prop_src(src->reg.indirect, parent_instr, parent_if, 1);
- return false;
- }
+ assert(src->is_ssa);
nir_instr *src_instr = src->ssa->parent_instr;
nir_ssa_def *copy_def;
copy_prop_alu_src(nir_alu_instr *parent_alu_instr, unsigned index)
{
nir_alu_src *src = &parent_alu_instr->src[index];
- if (!src->src.is_ssa) {
- if (src->src.reg.indirect)
- return copy_prop_src(src->src.reg.indirect, &parent_alu_instr->instr,
- NULL, 1);
- return false;
- }
+ assert(src->src.is_ssa);
nir_instr *src_instr = src->src.ssa->parent_instr;
if (src_instr->type != nir_instr_type_alu)
return false;
nir_ssa_def *def;
- unsigned new_swizzle[4] = {0, 0, 0, 0};
+ unsigned new_swizzle[NIR_MAX_VEC_COMPONENTS] = {0, 0, 0, 0};
- if (alu_instr->op == nir_op_fmov ||
- alu_instr->op == nir_op_imov) {
- for (unsigned i = 0; i < 4; i++)
+ if (alu_instr->op == nir_op_mov) {
+ for (unsigned i = 0; i < NIR_MAX_VEC_COMPONENTS; i++)
new_swizzle[i] = alu_instr->src[0].swizzle[src->swizzle[i]];
def = alu_instr->src[0].src.ssa;
} else {
def = NULL;
- for (unsigned i = 0; i < 4; i++) {
+ for (unsigned i = 0; i < NIR_MAX_VEC_COMPONENTS; i++) {
if (!nir_alu_instr_channel_used(parent_alu_instr, index, i))
continue;
}
}
- for (unsigned i = 0; i < 4; i++)
+ for (unsigned i = 0; i < NIR_MAX_VEC_COMPONENTS; i++)
src->swizzle[i] = new_swizzle[i];
nir_instr_rewrite_src(&parent_alu_instr->instr, &src->src,
return true;
}
-static bool
-copy_prop_dest(nir_dest *dest, nir_instr *instr)
-{
- if (!dest->is_ssa && dest->reg.indirect)
- return copy_prop_src(dest->reg.indirect, instr, NULL, 1);
-
- return false;
-}
-
static bool
copy_prop_instr(nir_instr *instr)
{
while (copy_prop_alu_src(alu_instr, i))
progress = true;
- while (copy_prop_dest(&alu_instr->dest.dest, instr))
- progress = true;
-
return progress;
}
progress = true;
}
- if (deref->deref_type == nir_deref_type_array) {
+ if (deref->deref_type == nir_deref_type_array ||
+ deref->deref_type == nir_deref_type_ptr_as_array) {
while (copy_prop_src(&deref->arr.index, instr, NULL, 1))
progress = true;
}
progress = true;
}
- while (copy_prop_dest(&tex->dest, instr))
- progress = true;
-
return progress;
}
progress = true;
}
- if (nir_intrinsic_infos[intrin->intrinsic].has_dest) {
- while (copy_prop_dest(&intrin->dest, instr))
- progress = true;
- }
-
return progress;
}
if (progress) {
nir_metadata_preserve(impl, nir_metadata_block_index |
nir_metadata_dominance);
+ } else {
+ nir_metadata_preserve(impl, nir_metadata_all);
}
return progress;