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nir: Make an easier helper for setting up SSA defs.

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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.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Eric Anholt
2015-01-20 16:23:51 -08:00
parent c5be9c126d
commit 534a4ec82f
13 changed files with 46 additions and 66 deletions
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14
src/glsl/nir/glsl_to_nir.cpp
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@@ -612,8 +612,7 @@ 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);
@@ -696,9 +695,7 @@ 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);
@@ -711,9 +708,7 @@ 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;
@@ -798,8 +793,7 @@ 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;