[Mesa-dev] [PATCH 2/5] nir: Make an easier helper for setting up SSA defs.
Jason Ekstrand
jason at jlekstrand.net
Wed Jan 21 20:18:12 PST 2015
Yes, please. I've made that mistake enough myself.
Reviewed-by: Jason Ekstrand <jason.ekstrand at intel.com>
On Wed, Jan 21, 2015 at 5:25 PM, Eric Anholt <eric at anholt.net> wrote:
> Almost all instructions we nir_ssa_def_init() for are nir_dests, and you
> have to keep from forgetting to set is_ssa when you do. Just provide the
> simpler helper, instead.
> ---
> src/glsl/nir/glsl_to_nir.cpp | 14 ++++----------
> src/glsl/nir/nir.c | 8 ++++++++
> src/glsl/nir/nir.h | 2 ++
> src/glsl/nir/nir_from_ssa.c | 10 ++++------
> src/glsl/nir/nir_lower_atomics.c | 11 ++++-------
> src/glsl/nir/nir_lower_io.c | 11 ++++-------
> src/glsl/nir/nir_lower_locals_to_regs.c | 11 ++++-------
> src/glsl/nir/nir_lower_system_values.c | 5 ++---
> src/glsl/nir/nir_lower_var_copies.c | 3 +--
> src/glsl/nir/nir_lower_vars_to_ssa.c | 15 ++++++---------
> src/glsl/nir/nir_opt_peephole_select.c | 5 ++---
> src/glsl/nir/nir_search.c | 8 +++-----
> src/glsl/nir/nir_to_ssa.c | 9 ++-------
> 13 files changed, 46 insertions(+), 66 deletions(-)
>
> diff --git a/src/glsl/nir/glsl_to_nir.cpp b/src/glsl/nir/glsl_to_nir.cpp
> index 6ac830e..80bc4ba 100644
> --- a/src/glsl/nir/glsl_to_nir.cpp
> +++ b/src/glsl/nir/glsl_to_nir.cpp
> @@ -618,8 +618,7 @@ nir_visitor::visit(ir_call *ir)
> (ir_dereference *) ir->actual_parameters.get_head();
> param->accept(this);
> instr->variables[0] = this->deref_head;
> - instr->dest.is_ssa = true;
> - nir_ssa_def_init(&instr->instr, &instr->dest.ssa, 1, NULL);
> + nir_ssa_dest_init(&instr->instr, &instr->dest, 1, NULL);
>
> nir_instr_insert_after_cf_list(this->cf_node_list, &instr->instr);
>
> @@ -702,9 +701,7 @@ nir_visitor::visit(ir_assignment *ir)
> nir_intrinsic_instr *load =
> nir_intrinsic_instr_create(this->shader, nir_intrinsic_load_var);
> load->num_components = ir->lhs->type->vector_elements;
> - load->dest.is_ssa = true;
> - nir_ssa_def_init(&load->instr, &load->dest.ssa,
> - num_components, NULL);
> + nir_ssa_dest_init(&load->instr, &load->dest, num_components, NULL);
> load->variables[0] = lhs_deref;
> nir_instr_insert_after_cf_list(this->cf_node_list, &load->instr);
>
> @@ -717,9 +714,7 @@ nir_visitor::visit(ir_assignment *ir)
> default: unreachable("Invalid number of components"); break;
> }
> nir_alu_instr *vec = nir_alu_instr_create(this->shader, vec_op);
> - vec->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&vec->instr, &vec->dest.dest.ssa,
> - num_components, NULL);
> + nir_ssa_dest_init(&vec->instr, &vec->dest.dest, num_components,
> NULL);
> vec->dest.write_mask = (1 << num_components) - 1;
>
> unsigned component = 0;
> @@ -805,8 +800,7 @@ nir_visitor::add_instr(nir_instr *instr, unsigned
> num_components)
> {
> nir_dest *dest = get_instr_dest(instr);
>
> - dest->is_ssa = true;
> - nir_ssa_def_init(instr, &dest->ssa, num_components, NULL);
> + nir_ssa_dest_init(instr, dest, num_components, NULL);
>
> nir_instr_insert_after_cf_list(this->cf_node_list, instr);
> this->result = instr;
> diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c
> index 89e21fd..16ad2da 100644
> --- a/src/glsl/nir/nir.c
> +++ b/src/glsl/nir/nir.c
> @@ -1791,6 +1791,14 @@ nir_ssa_def_init(nir_instr *instr, nir_ssa_def *def,
> }
> }
>
> +void
> +nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
> + unsigned num_components, const char *name)
> +{
> + dest->is_ssa = true;
> + nir_ssa_def_init(instr, &dest->ssa, num_components, name);
> +}
> +
> struct ssa_def_rewrite_state {
> void *mem_ctx;
> nir_ssa_def *old;
> diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h
> index 761f20a..8dc5222 100644
> --- a/src/glsl/nir/nir.h
> +++ b/src/glsl/nir/nir.h
> @@ -1457,6 +1457,8 @@ nir_const_value *nir_src_as_const_value(nir_src src);
> bool nir_srcs_equal(nir_src src1, nir_src src2);
> void nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src
> new_src);
>
> +void nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
> + unsigned num_components, const char *name);
> void nir_ssa_def_init(nir_instr *instr, nir_ssa_def *def,
> unsigned num_components, const char *name);
> void nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src, void
> *mem_ctx);
> diff --git a/src/glsl/nir/nir_from_ssa.c b/src/glsl/nir/nir_from_ssa.c
> index 9728b99..88212a2 100644
> --- a/src/glsl/nir/nir_from_ssa.c
> +++ b/src/glsl/nir/nir_from_ssa.c
> @@ -355,9 +355,8 @@ isolate_phi_nodes_block(nir_block *block, void
> *void_state)
> entry->src = nir_src_copy(src->src, state->dead_ctx);
> _mesa_set_add(src->src.ssa->uses, &pcopy->instr);
>
> - entry->dest.is_ssa = true;
> - nir_ssa_def_init(&pcopy->instr, &entry->dest.ssa,
> - phi->dest.ssa.num_components,
> src->src.ssa->name);
> + nir_ssa_dest_init(&pcopy->instr, &entry->dest,
> + phi->dest.ssa.num_components,
> src->src.ssa->name);
>
> struct set_entry *use_entry =
> _mesa_set_search(src->src.ssa->uses, instr);
> @@ -379,9 +378,8 @@ isolate_phi_nodes_block(nir_block *block, void
> *void_state)
> nir_parallel_copy_entry);
> exec_list_push_tail(&block_pcopy->entries, &entry->node);
>
> - entry->dest.is_ssa = true;
> - nir_ssa_def_init(&block_pcopy->instr, &entry->dest.ssa,
> - phi->dest.ssa.num_components, phi->dest.ssa.name);
> + nir_ssa_dest_init(&block_pcopy->instr, &entry->dest,
> + phi->dest.ssa.num_components, phi->dest.ssa.name
> );
>
> nir_src entry_dest_src = {
> .ssa = &entry->dest.ssa,
> diff --git a/src/glsl/nir/nir_lower_atomics.c
> b/src/glsl/nir/nir_lower_atomics.c
> index 874c534..a5c05ce 100644
> --- a/src/glsl/nir/nir_lower_atomics.c
> +++ b/src/glsl/nir/nir_lower_atomics.c
> @@ -86,8 +86,7 @@ lower_instr(nir_intrinsic_instr *instr,
> nir_function_impl *impl)
> nir_instr_insert_before(&instr->instr,
> &atomic_counter_size->instr);
>
> nir_alu_instr *mul = nir_alu_instr_create(mem_ctx, nir_op_imul);
> - mul->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mul->instr, &mul->dest.dest.ssa, 1, NULL);
> + 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);
> mul->src[1].src.is_ssa = true;
> @@ -95,8 +94,7 @@ lower_instr(nir_intrinsic_instr *instr,
> nir_function_impl *impl)
> nir_instr_insert_before(&instr->instr, &mul->instr);
>
> nir_alu_instr *add = nir_alu_instr_create(mem_ctx, nir_op_iadd);
> - add->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&add->instr, &add->dest.dest.ssa, 1, NULL);
> + nir_ssa_dest_init(&add->instr, &add->dest.dest, 1, NULL);
> add->dest.write_mask = 0x1;
> add->src[0].src.is_ssa = true;
> add->src[0].src.ssa = &mul->dest.dest.ssa;
> @@ -112,9 +110,8 @@ lower_instr(nir_intrinsic_instr *instr,
> nir_function_impl *impl)
> new_instr->src[0].ssa = offset_def;;
>
> if (instr->dest.is_ssa) {
> - new_instr->dest.is_ssa = true;
> - nir_ssa_def_init(&new_instr->instr, &new_instr->dest.ssa,
> - instr->dest.ssa.num_components, NULL);
> + nir_ssa_dest_init(&new_instr->instr, &new_instr->dest,
> + instr->dest.ssa.num_components, NULL);
> nir_src new_dest_src = {
> .is_ssa = true,
> .ssa = &new_instr->dest.ssa,
> diff --git a/src/glsl/nir/nir_lower_io.c b/src/glsl/nir/nir_lower_io.c
> index af87c13..a36f2d7 100644
> --- a/src/glsl/nir/nir_lower_io.c
> +++ b/src/glsl/nir/nir_lower_io.c
> @@ -151,8 +151,7 @@ get_io_offset(nir_deref_var *deref, nir_instr *instr,
> nir_src *indirect,
> mul->src[1].src = nir_src_copy(deref_array->indirect,
> state->mem_ctx);
> mul->dest.write_mask = 1;
> - mul->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mul->instr, &mul->dest.dest.ssa, 1, NULL);
> + nir_ssa_dest_init(&mul->instr, &mul->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &mul->instr);
>
> if (found_indirect) {
> @@ -162,8 +161,7 @@ get_io_offset(nir_deref_var *deref, nir_instr *instr,
> nir_src *indirect,
> add->src[1].src.is_ssa = true;
> add->src[1].src.ssa = &mul->dest.dest.ssa;
> add->dest.write_mask = 1;
> - add->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&add->instr, &add->dest.dest.ssa, 1,
> NULL);
> + nir_ssa_dest_init(&add->instr, &add->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &add->instr);
>
> indirect->is_ssa = true;
> @@ -235,9 +233,8 @@ nir_lower_io_block(nir_block *block, void *void_state)
> load->src[0] = indirect;
>
> if (intrin->dest.is_ssa) {
> - load->dest.is_ssa = true;
> - nir_ssa_def_init(&load->instr, &load->dest.ssa,
> - intrin->num_components, NULL);
> + nir_ssa_dest_init(&load->instr, &load->dest,
> + intrin->num_components, NULL);
>
> nir_src new_src = {
> .is_ssa = true,
> diff --git a/src/glsl/nir/nir_lower_locals_to_regs.c
> b/src/glsl/nir/nir_lower_locals_to_regs.c
> index b187541..58a1dcb 100644
> --- a/src/glsl/nir/nir_lower_locals_to_regs.c
> +++ b/src/glsl/nir/nir_lower_locals_to_regs.c
> @@ -158,8 +158,7 @@ get_deref_reg_src(nir_deref_var *deref, nir_instr
> *instr,
> mul->src[1].src.is_ssa = true;
> mul->src[1].src.ssa = &load_const->def;
> mul->dest.write_mask = 1;
> - mul->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mul->instr, &mul->dest.dest.ssa, 1, NULL);
> + nir_ssa_dest_init(&mul->instr, &mul->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &mul->instr);
>
> src.reg.indirect->is_ssa = true;
> @@ -178,8 +177,7 @@ get_deref_reg_src(nir_deref_var *deref, nir_instr
> *instr,
> add->src[1].src = nir_src_copy(deref_array->indirect,
> state->mem_ctx);
> add->dest.write_mask = 1;
> - add->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&add->instr, &add->dest.dest.ssa, 1, NULL);
> + nir_ssa_dest_init(&add->instr, &add->dest.dest, 1, NULL);
> nir_instr_insert_before(instr, &add->instr);
>
> src.reg.indirect->is_ssa = true;
> @@ -212,9 +210,8 @@ lower_locals_to_regs_block(nir_block *block, void
> *void_state)
> &intrin->instr, state);
> mov->dest.write_mask = (1 << intrin->num_components) - 1;
> if (intrin->dest.is_ssa) {
> - mov->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mov->instr, &mov->dest.dest.ssa,
> - intrin->num_components, NULL);
> + nir_ssa_dest_init(&mov->instr, &mov->dest.dest,
> + intrin->num_components, NULL);
>
> nir_src new_src = {
> .is_ssa = true,
> diff --git a/src/glsl/nir/nir_lower_system_values.c
> b/src/glsl/nir/nir_lower_system_values.c
> index d1b4d26..93ac157 100644
> --- a/src/glsl/nir/nir_lower_system_values.c
> +++ b/src/glsl/nir/nir_lower_system_values.c
> @@ -71,9 +71,8 @@ convert_instr(nir_intrinsic_instr *instr)
> nir_intrinsic_instr *new_instr = nir_intrinsic_instr_create(mem_ctx,
> op);
>
> if (instr->dest.is_ssa) {
> - new_instr->dest.is_ssa = true;
> - nir_ssa_def_init(&new_instr->instr, &new_instr->dest.ssa,
> - instr->dest.ssa.num_components, NULL);
> + nir_ssa_dest_init(&new_instr->instr, &new_instr->dest,
> + instr->dest.ssa.num_components, NULL);
> nir_src new_dest_src = {
> .is_ssa = true,
> .ssa = &new_instr->dest.ssa,
> diff --git a/src/glsl/nir/nir_lower_var_copies.c
> b/src/glsl/nir/nir_lower_var_copies.c
> index a9d1a47..85ebb28 100644
> --- a/src/glsl/nir/nir_lower_var_copies.c
> +++ b/src/glsl/nir/nir_lower_var_copies.c
> @@ -155,8 +155,7 @@ emit_copy_load_store(nir_intrinsic_instr *copy_instr,
> nir_intrinsic_instr_create(mem_ctx, nir_intrinsic_load_var);
> load->num_components = num_components;
> load->variables[0] = nir_deref_as_var(src_deref);
> - load->dest.is_ssa = true;
> - nir_ssa_def_init(&load->instr, &load->dest.ssa, num_components,
> NULL);
> + nir_ssa_dest_init(&load->instr, &load->dest, num_components, NULL);
>
> nir_instr_insert_before(©_instr->instr, &load->instr);
>
> diff --git a/src/glsl/nir/nir_lower_vars_to_ssa.c
> b/src/glsl/nir/nir_lower_vars_to_ssa.c
> index 4df9bdd..089f0d5 100644
> --- a/src/glsl/nir/nir_lower_vars_to_ssa.c
> +++ b/src/glsl/nir/nir_lower_vars_to_ssa.c
> @@ -788,9 +788,8 @@ rename_variables_block(nir_block *block, struct
> lower_variables_state *state)
> assert(intrin->dest.is_ssa);
>
> mov->dest.write_mask = (1 << intrin->num_components) - 1;
> - mov->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mov->instr, &mov->dest.dest.ssa,
> - intrin->num_components, NULL);
> + nir_ssa_dest_init(&mov->instr, &mov->dest.dest,
> + intrin->num_components, NULL);
>
> nir_instr_insert_before(&intrin->instr, &mov->instr);
> nir_instr_remove(&intrin->instr);
> @@ -832,9 +831,8 @@ rename_variables_block(nir_block *block, struct
> lower_variables_state *state)
> mov->src[0].swizzle[i] = 0;
>
> mov->dest.write_mask = (1 << intrin->num_components) - 1;
> - mov->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mov->instr, &mov->dest.dest.ssa,
> - intrin->num_components, NULL);
> + nir_ssa_dest_init(&mov->instr, &mov->dest.dest,
> + intrin->num_components, NULL);
>
> nir_instr_insert_before(&intrin->instr, &mov->instr);
>
> @@ -968,9 +966,8 @@ insert_phi_nodes(struct lower_variables_state *state)
>
> if (has_already[next->index] < iter_count) {
> nir_phi_instr *phi = nir_phi_instr_create(state->mem_ctx);
> - phi->dest.is_ssa = true;
> - nir_ssa_def_init(&phi->instr, &phi->dest.ssa,
> - glsl_get_vector_elements(node->type),
> NULL);
> + nir_ssa_dest_init(&phi->instr, &phi->dest,
> + glsl_get_vector_elements(node->type),
> NULL);
> nir_instr_insert_before_block(next, &phi->instr);
>
> _mesa_hash_table_insert(state->phi_table, phi, node);
> diff --git a/src/glsl/nir/nir_opt_peephole_select.c
> b/src/glsl/nir/nir_opt_peephole_select.c
> index 5d2f5d6..023fae5 100644
> --- a/src/glsl/nir/nir_opt_peephole_select.c
> +++ b/src/glsl/nir/nir_opt_peephole_select.c
> @@ -163,9 +163,8 @@ nir_opt_peephole_select_block(nir_block *block, void
> *void_state)
> }
> }
>
> - sel->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&sel->instr, &sel->dest.dest.ssa,
> - phi->dest.ssa.num_components, phi->dest.ssa.name);
> + nir_ssa_dest_init(&sel->instr, &sel->dest.dest,
> + phi->dest.ssa.num_components, phi->dest.ssa.name
> );
> sel->dest.write_mask = (1 << phi->dest.ssa.num_components) - 1;
>
> nir_src sel_dest_src = {
> diff --git a/src/glsl/nir/nir_search.c b/src/glsl/nir/nir_search.c
> index 35323f9..c84f5ac 100644
> --- a/src/glsl/nir/nir_search.c
> +++ b/src/glsl/nir/nir_search.c
> @@ -201,8 +201,7 @@ construct_value(const nir_search_value *value,
> nir_alu_type type,
> num_components = nir_op_infos[expr->opcode].output_size;
>
> nir_alu_instr *alu = nir_alu_instr_create(mem_ctx, expr->opcode);
> - alu->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&alu->instr, &alu->dest.dest.ssa, num_components,
> NULL);
> + nir_ssa_dest_init(&alu->instr, &alu->dest.dest, num_components,
> NULL);
> alu->dest.write_mask = (1 << num_components) - 1;
> alu->dest.saturate = false;
>
> @@ -305,9 +304,8 @@ nir_replace_instr(nir_alu_instr *instr, const
> nir_search_expression *search,
> */
> nir_alu_instr *mov = nir_alu_instr_create(mem_ctx, nir_op_imov);
> mov->dest.write_mask = instr->dest.write_mask;
> - mov->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&mov->instr, &mov->dest.dest.ssa,
> - instr->dest.dest.ssa.num_components, NULL);
> + nir_ssa_dest_init(&mov->instr, &mov->dest.dest,
> + instr->dest.dest.ssa.num_components, NULL);
>
> mov->src[0] = construct_value(replace,
> nir_op_infos[instr->op].output_type,
> instr->dest.dest.ssa.num_components,
> &state,
> diff --git a/src/glsl/nir/nir_to_ssa.c b/src/glsl/nir/nir_to_ssa.c
> index b9b1cff..1eb81f7 100644
> --- a/src/glsl/nir/nir_to_ssa.c
> +++ b/src/glsl/nir/nir_to_ssa.c
> @@ -214,15 +214,12 @@ rewrite_def_forwards(nir_dest *dest, void *_state)
> if (state->states[index].stack == NULL)
> return true;
>
> - dest->is_ssa = true;
> -
> char *name = NULL;
> if (dest->reg.reg->name)
> name = ralloc_asprintf(state->mem_ctx, "%s_%u", dest->reg.reg->name,
> state->states[index].num_defs);
>
> - nir_ssa_def_init(state->parent_instr, &dest->ssa,
> - reg->num_components, name);
> + nir_ssa_dest_init(state->parent_instr, dest, reg->num_components,
> name);
>
> /* push our SSA destination on the stack */
> state->states[index].index++;
> @@ -270,9 +267,7 @@ rewrite_alu_instr_forward(nir_alu_instr *instr,
> rewrite_state *state)
> reg->name, state->states[index].num_defs);
>
> instr->dest.write_mask = (1 << num_components) - 1;
> - instr->dest.dest.is_ssa = true;
> - nir_ssa_def_init(&instr->instr, &instr->dest.dest.ssa,
> - num_components, name);
> + nir_ssa_dest_init(&instr->instr, &instr->dest.dest, num_components,
> name);
>
> if (nir_op_infos[instr->op].output_size == 0) {
> /*
> --
> 2.1.3
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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