[Mesa-dev] [PATCH] nir: Use pointers for nir_src_copy and nir_dest_copy
Connor Abbott
cwabbott0 at gmail.com
Mon Jan 26 11:24:18 PST 2015
Reviewed-by: Connor Abbott <cwabbott0 at gmail.com>
On Fri, Jan 23, 2015 at 7:59 PM, Jason Ekstrand <jason at jlekstrand.net> wrote:
> This avoids the overhead of copying structures and better matches the newly
> added nir_alu_src_copy and nir_alu_dest_copy.
> ---
>
> This should be obvious, but this applies on top of Eric Anholt's patch to
> add nir_alu_src_copy and nir_alu_dest_copy
>
> src/glsl/nir/nir.c | 56 +++++++++++++++------------------
> src/glsl/nir/nir.h | 4 +--
> src/glsl/nir/nir_from_ssa.c | 4 +--
> src/glsl/nir/nir_lower_atomics.c | 4 +--
> src/glsl/nir/nir_lower_io.c | 8 ++---
> src/glsl/nir/nir_lower_locals_to_regs.c | 12 +++----
> src/glsl/nir/nir_lower_samplers.cpp | 2 +-
> src/glsl/nir/nir_lower_system_values.c | 2 +-
> src/glsl/nir/nir_opt_peephole_select.c | 4 +--
> src/glsl/nir/nir_search.c | 4 +--
> 10 files changed, 47 insertions(+), 53 deletions(-)
>
> diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c
> index e414df9..472fa39 100644
> --- a/src/glsl/nir/nir.c
> +++ b/src/glsl/nir/nir.c
> @@ -135,50 +135,44 @@ nir_function_overload_create(nir_function *func)
> return overload;
> }
>
> -nir_src nir_src_copy(nir_src src, void *mem_ctx)
> +void nir_src_copy(nir_src *dest, const nir_src *src, void *mem_ctx)
> {
> - nir_src ret;
> - ret.is_ssa = src.is_ssa;
> - if (ret.is_ssa) {
> - ret.ssa = src.ssa;
> + dest->is_ssa = src->is_ssa;
> + if (src->is_ssa) {
> + dest->ssa = src->ssa;
> } else {
> - ret.reg.base_offset = src.reg.base_offset;
> - ret.reg.reg = src.reg.reg;
> - if (src.reg.indirect) {
> - ret.reg.indirect = ralloc(mem_ctx, nir_src);
> - *ret.reg.indirect = *src.reg.indirect;
> + dest->reg.base_offset = src->reg.base_offset;
> + dest->reg.reg = src->reg.reg;
> + if (src->reg.indirect) {
> + dest->reg.indirect = ralloc(mem_ctx, nir_src);
> + nir_src_copy(dest->reg.indirect, src->reg.indirect, mem_ctx);
> } else {
> - ret.reg.indirect = NULL;
> + dest->reg.indirect = NULL;
> }
> }
> -
> - return ret;
> }
>
> -nir_dest nir_dest_copy(nir_dest dest, void *mem_ctx)
> +void nir_dest_copy(nir_dest *dest, const nir_dest *src, void *mem_ctx)
> {
> - nir_dest ret;
> - ret.is_ssa = dest.is_ssa;
> - if (ret.is_ssa) {
> - ret.ssa = dest.ssa;
> + dest->is_ssa = src->is_ssa;
> + if (src->is_ssa) {
> + dest->ssa = src->ssa;
> } else {
> - ret.reg.base_offset = dest.reg.base_offset;
> - ret.reg.reg = dest.reg.reg;
> - if (dest.reg.indirect) {
> - ret.reg.indirect = ralloc(mem_ctx, nir_src);
> - *ret.reg.indirect = *dest.reg.indirect;
> + dest->reg.base_offset = src->reg.base_offset;
> + dest->reg.reg = src->reg.reg;
> + if (src->reg.indirect) {
> + dest->reg.indirect = ralloc(mem_ctx, nir_src);
> + nir_src_copy(dest->reg.indirect, src->reg.indirect, mem_ctx);
> } else {
> - ret.reg.indirect = NULL;
> + dest->reg.indirect = NULL;
> }
> }
> -
> - return ret;
> }
>
> void
> nir_alu_src_copy(nir_alu_src *dest, nir_alu_src *src, void *mem_ctx)
> {
> - dest->src = nir_src_copy(src->src, mem_ctx);
> + nir_src_copy(&dest->src, &src->src, mem_ctx);
> dest->abs = src->abs;
> dest->negate = src->negate;
> for (unsigned i = 0; i < 4; i++)
> @@ -188,7 +182,7 @@ nir_alu_src_copy(nir_alu_src *dest, nir_alu_src *src, void *mem_ctx)
> void
> nir_alu_dest_copy(nir_alu_dest *dest, nir_alu_dest *src, void *mem_ctx)
> {
> - dest->dest = nir_dest_copy(src->dest, mem_ctx);
> + nir_dest_copy(&dest->dest, &src->dest, mem_ctx);
> dest->write_mask = src->write_mask;
> dest->saturate = src->saturate;
> }
> @@ -563,7 +557,7 @@ copy_deref_array(void *mem_ctx, nir_deref_array *deref)
> ret->base_offset = deref->base_offset;
> ret->deref_array_type = deref->deref_array_type;
> if (deref->deref_array_type == nir_deref_array_type_indirect) {
> - ret->indirect = nir_src_copy(deref->indirect, mem_ctx);
> + nir_src_copy(&ret->indirect, &deref->indirect, mem_ctx);
> }
> ret->deref.type = deref->deref.type;
> if (deref->deref.child)
> @@ -1829,7 +1823,7 @@ ssa_def_rewrite_uses_src(nir_src *src, void *void_state)
> struct ssa_def_rewrite_state *state = void_state;
>
> if (src->is_ssa && src->ssa == state->old)
> - *src = nir_src_copy(state->new_src, state->mem_ctx);
> + nir_src_copy(src, &state->new_src, state->mem_ctx);
>
> return true;
> }
> @@ -1866,7 +1860,7 @@ nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src, void *mem_ctx)
> nir_if *if_use = (nir_if *)entry->key;
>
> _mesa_set_remove(def->if_uses, entry);
> - if_use->condition = nir_src_copy(new_src, mem_ctx);
> + nir_src_copy(&if_use->condition, &new_src, mem_ctx);
> _mesa_set_add(new_if_uses, if_use);
> }
> }
> diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h
> index f0d4de7..4770558 100644
> --- a/src/glsl/nir/nir.h
> +++ b/src/glsl/nir/nir.h
> @@ -519,8 +519,8 @@ nir_dest_for_reg(nir_register *reg)
> return dest;
> }
>
> -nir_src nir_src_copy(nir_src src, void *mem_ctx);
> -nir_dest nir_dest_copy(nir_dest dest, void *mem_ctx);
> +void nir_src_copy(nir_src *dest, const nir_src *src, void *mem_ctx);
> +void nir_dest_copy(nir_dest *dest, const nir_dest *src, void *mem_ctx);
>
> typedef struct {
> nir_src src;
> diff --git a/src/glsl/nir/nir_from_ssa.c b/src/glsl/nir/nir_from_ssa.c
> index 840177b..2e7add3 100644
> --- a/src/glsl/nir/nir_from_ssa.c
> +++ b/src/glsl/nir/nir_from_ssa.c
> @@ -352,7 +352,7 @@ isolate_phi_nodes_block(nir_block *block, void *void_state)
> nir_parallel_copy_entry);
> exec_list_push_tail(&pcopy->entries, &entry->node);
>
> - entry->src = nir_src_copy(src->src, state->dead_ctx);
> + nir_src_copy(&entry->src, &src->src, state->dead_ctx);
> _mesa_set_add(src->src.ssa->uses, &pcopy->instr);
>
> nir_ssa_dest_init(&pcopy->instr, &entry->dest,
> @@ -622,7 +622,7 @@ emit_copy(nir_parallel_copy_instr *pcopy, nir_src src, nir_src dest_src,
> assert(src.reg.reg->num_components >= dest_src.reg.reg->num_components);
>
> nir_alu_instr *mov = nir_alu_instr_create(mem_ctx, nir_op_imov);
> - mov->src[0].src = nir_src_copy(src, mem_ctx);
> + nir_src_copy(&mov->src[0].src, &src, mem_ctx);
> mov->dest.dest = nir_dest_for_reg(dest_src.reg.reg);
> mov->dest.write_mask = (1 << dest_src.reg.reg->num_components) - 1;
>
> diff --git a/src/glsl/nir/nir_lower_atomics.c b/src/glsl/nir/nir_lower_atomics.c
> index ec582f3..6ed5377 100644
> --- a/src/glsl/nir/nir_lower_atomics.c
> +++ b/src/glsl/nir/nir_lower_atomics.c
> @@ -88,7 +88,7 @@ lower_instr(nir_intrinsic_instr *instr, nir_function_impl *impl)
> nir_alu_instr *mul = nir_alu_instr_create(mem_ctx, nir_op_imul);
> nir_ssa_dest_init(&mul->instr, &mul->dest.dest, 1, NULL);
> mul->dest.write_mask = 0x1;
> - mul->src[0].src = nir_src_copy(deref_array->indirect, mem_ctx);
> + nir_src_copy(&mul->src[0].src, &deref_array->indirect, mem_ctx);
> mul->src[1].src.is_ssa = true;
> mul->src[1].src.ssa = &atomic_counter_size->def;
> nir_instr_insert_before(&instr->instr, &mul->instr);
> @@ -116,7 +116,7 @@ lower_instr(nir_intrinsic_instr *instr, nir_function_impl *impl)
> nir_src_for_ssa(&new_instr->dest.ssa),
> mem_ctx);
> } else {
> - new_instr->dest = nir_dest_copy(instr->dest, mem_ctx);
> + nir_dest_copy(&new_instr->dest, &instr->dest, mem_ctx);
> }
>
> nir_instr_insert_before(&instr->instr, &new_instr->instr);
> diff --git a/src/glsl/nir/nir_lower_io.c b/src/glsl/nir/nir_lower_io.c
> index 8712869..ddbc249 100644
> --- a/src/glsl/nir/nir_lower_io.c
> +++ b/src/glsl/nir/nir_lower_io.c
> @@ -148,8 +148,8 @@ get_io_offset(nir_deref_var *deref, nir_instr *instr, nir_src *indirect,
> nir_op_imul);
> mul->src[0].src.is_ssa = true;
> mul->src[0].src.ssa = &load_const->def;
> - mul->src[1].src = nir_src_copy(deref_array->indirect,
> - state->mem_ctx);
> + nir_src_copy(&mul->src[1].src, &deref_array->indirect,
> + state->mem_ctx);
> mul->dest.write_mask = 1;
> nir_ssa_dest_init(&mul->instr, &mul->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &mul->instr);
> @@ -239,7 +239,7 @@ nir_lower_io_block(nir_block *block, void *void_state)
> nir_src_for_ssa(&load->dest.ssa),
> state->mem_ctx);
> } else {
> - load->dest = nir_dest_copy(intrin->dest, state->mem_ctx);
> + nir_dest_copy(&load->dest, &intrin->dest, state->mem_ctx);
> }
>
> nir_instr_insert_before(&intrin->instr, &load->instr);
> @@ -272,7 +272,7 @@ nir_lower_io_block(nir_block *block, void *void_state)
> store->const_index[0] = offset;
> store->const_index[1] = 1;
>
> - store->src[0] = nir_src_copy(intrin->src[0], state->mem_ctx);
> + nir_src_copy(&store->src[0], &intrin->src[0], state->mem_ctx);
>
> if (has_indirect)
> store->src[1] = indirect;
> diff --git a/src/glsl/nir/nir_lower_locals_to_regs.c b/src/glsl/nir/nir_lower_locals_to_regs.c
> index c04cb55..8c5df7b 100644
> --- a/src/glsl/nir/nir_lower_locals_to_regs.c
> +++ b/src/glsl/nir/nir_lower_locals_to_regs.c
> @@ -168,14 +168,14 @@ get_deref_reg_src(nir_deref_var *deref, nir_instr *instr,
> if (deref_array->deref_array_type == nir_deref_array_type_indirect) {
> if (src.reg.indirect == NULL) {
> src.reg.indirect = ralloc(state->mem_ctx, nir_src);
> - *src.reg.indirect = nir_src_copy(deref_array->indirect,
> - state->mem_ctx);
> + nir_src_copy(src.reg.indirect, &deref_array->indirect,
> + state->mem_ctx);
> } else {
> nir_alu_instr *add = nir_alu_instr_create(state->mem_ctx,
> nir_op_iadd);
> add->src[0].src = *src.reg.indirect;
> - add->src[1].src = nir_src_copy(deref_array->indirect,
> - state->mem_ctx);
> + nir_src_copy(&add->src[1].src, &deref_array->indirect,
> + state->mem_ctx);
> add->dest.write_mask = 1;
> nir_ssa_dest_init(&add->instr, &add->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &add->instr);
> @@ -216,7 +216,7 @@ lower_locals_to_regs_block(nir_block *block, void *void_state)
> nir_src_for_ssa(&mov->dest.dest.ssa),
> state->mem_ctx);
> } else {
> - mov->dest.dest = nir_dest_copy(intrin->dest, state->mem_ctx);
> + nir_dest_copy(&mov->dest.dest, &intrin->dest, state->mem_ctx);
> }
> nir_instr_insert_before(&intrin->instr, &mov->instr);
>
> @@ -232,7 +232,7 @@ lower_locals_to_regs_block(nir_block *block, void *void_state)
> &intrin->instr, state);
>
> nir_alu_instr *mov = nir_alu_instr_create(state->mem_ctx, nir_op_imov);
> - mov->src[0].src = nir_src_copy(intrin->src[0], state->mem_ctx);
> + nir_src_copy(&mov->src[0].src, &intrin->src[0], state->mem_ctx);
> mov->dest.write_mask = (1 << intrin->num_components) - 1;
> mov->dest.dest.is_ssa = false;
> mov->dest.dest.reg.reg = reg_src.reg.reg;
> diff --git a/src/glsl/nir/nir_lower_samplers.cpp b/src/glsl/nir/nir_lower_samplers.cpp
> index 99f31fc..dca086d 100644
> --- a/src/glsl/nir/nir_lower_samplers.cpp
> +++ b/src/glsl/nir/nir_lower_samplers.cpp
> @@ -102,7 +102,7 @@ lower_sampler(nir_tex_instr *instr, struct gl_shader_program *shader_program,
>
> nir_instr_rewrite_src(&instr->instr,
> &instr->src[instr->num_srcs - 1].src,
> - nir_src_copy(deref_array->indirect, mem_ctx));
> + deref_array->indirect);
>
> instr->sampler_array_size = glsl_get_length(deref->type);
>
> diff --git a/src/glsl/nir/nir_lower_system_values.c b/src/glsl/nir/nir_lower_system_values.c
> index dc12f40..90346c9 100644
> --- a/src/glsl/nir/nir_lower_system_values.c
> +++ b/src/glsl/nir/nir_lower_system_values.c
> @@ -76,7 +76,7 @@ convert_instr(nir_intrinsic_instr *instr)
> nir_src_for_ssa(&new_instr->dest.ssa),
> mem_ctx);
> } else {
> - new_instr->dest = nir_dest_copy(instr->dest, mem_ctx);
> + nir_dest_copy(&new_instr->dest, &instr->dest, mem_ctx);
> }
>
> nir_instr_insert_before(&instr->instr, &new_instr->instr);
> diff --git a/src/glsl/nir/nir_opt_peephole_select.c b/src/glsl/nir/nir_opt_peephole_select.c
> index 21bdd26..ab08f28 100644
> --- a/src/glsl/nir/nir_opt_peephole_select.c
> +++ b/src/glsl/nir/nir_opt_peephole_select.c
> @@ -135,7 +135,7 @@ nir_opt_peephole_select_block(nir_block *block, void *void_state)
>
> nir_phi_instr *phi = nir_instr_as_phi(instr);
> nir_alu_instr *sel = nir_alu_instr_create(state->mem_ctx, nir_op_bcsel);
> - sel->src[0].src = nir_src_copy(if_stmt->condition, state->mem_ctx);
> + nir_src_copy(&sel->src[0].src, &if_stmt->condition, state->mem_ctx);
> /* Splat the condition to all channels */
> memset(sel->src[0].swizzle, 0, sizeof sel->src[0].swizzle);
>
> @@ -156,7 +156,7 @@ nir_opt_peephole_select_block(nir_block *block, void *void_state)
>
> nir_alu_src_copy(&sel->src[idx], &mov->src[0], state->mem_ctx);
> } else {
> - sel->src[idx].src = nir_src_copy(src->src, state->mem_ctx);
> + nir_src_copy(&sel->src[idx].src, &src->src, state->mem_ctx);
> }
> }
>
> diff --git a/src/glsl/nir/nir_search.c b/src/glsl/nir/nir_search.c
> index 7ef22e8..18e0330 100644
> --- a/src/glsl/nir/nir_search.c
> +++ b/src/glsl/nir/nir_search.c
> @@ -233,8 +233,8 @@ construct_value(const nir_search_value *value, nir_alu_type type,
> const nir_search_variable *var = nir_search_value_as_variable(value);
> assert(state->variables_seen & (1 << var->variable));
>
> - nir_alu_src val = state->variables[var->variable];
> - val.src = nir_src_copy(val.src, mem_ctx);
> + nir_alu_src val;
> + nir_alu_src_copy(&val, &state->variables[var->variable], mem_ctx);
>
> return val;
> }
> --
> 2.2.1
>
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