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-rw-r--r--src/glsl/nir/nir.c14
-rw-r--r--src/glsl/nir/nir.h4
-rw-r--r--src/glsl/nir/nir_to_ssa.c28
3 files changed, 25 insertions, 21 deletions
diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c
index adb353b909e..5e5f1aca750 100644
--- a/src/glsl/nir/nir.c
+++ b/src/glsl/nir/nir.c
@@ -1597,6 +1597,20 @@ nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state)
return nir_foreach_dest(instr, visit_dest_indirect, &dest_state);
}
+void
+nir_ssa_def_init(nir_function_impl *impl, nir_instr *instr, nir_ssa_def *def,
+ unsigned num_components, const char *name)
+{
+ void *mem_ctx = ralloc_parent(instr);
+
+ def->name = name;
+ def->index = impl->ssa_alloc++;
+ def->parent_instr = instr;
+ def->uses = _mesa_set_create(mem_ctx, _mesa_key_pointer_equal);
+ def->if_uses = _mesa_set_create(mem_ctx, _mesa_key_pointer_equal);
+ def->num_components = num_components;
+}
+
static bool foreach_cf_node(nir_cf_node *node, nir_foreach_block_cb cb,
bool reverse, void *state);
diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h
index c48bde81c7b..558ec914044 100644
--- a/src/glsl/nir/nir.h
+++ b/src/glsl/nir/nir.h
@@ -1278,6 +1278,10 @@ typedef bool (*nir_foreach_src_cb)(nir_src *src, void *state);
bool nir_foreach_dest(nir_instr *instr, nir_foreach_dest_cb cb, void *state);
bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state);
+void nir_ssa_def_init(nir_function_impl *impl, nir_instr *instr,
+ nir_ssa_def *def, unsigned num_components,
+ const char *name);
+
/* visits basic blocks in source-code order */
typedef bool (*nir_foreach_block_cb)(nir_block *block, void *state);
bool nir_foreach_block(nir_function_impl *impl, nir_foreach_block_cb cb,
diff --git a/src/glsl/nir/nir_to_ssa.c b/src/glsl/nir/nir_to_ssa.c
index 9f70225f211..26deb355e9c 100644
--- a/src/glsl/nir/nir_to_ssa.c
+++ b/src/glsl/nir/nir_to_ssa.c
@@ -163,12 +163,9 @@ static nir_ssa_def *get_ssa_src(nir_register *reg, rewrite_state *state)
* to preserve the information that this source is undefined
*/
nir_ssa_undef_instr *instr = nir_ssa_undef_instr_create(state->mem_ctx);
- instr->def.index = state->impl->ssa_alloc++;
- instr->def.num_components = reg->num_components;
- instr->def.uses = _mesa_set_create(state->mem_ctx,
- _mesa_key_pointer_equal);
- instr->def.if_uses = _mesa_set_create(state->mem_ctx,
- _mesa_key_pointer_equal);
+ nir_ssa_def_init(state->impl, &instr->instr, &instr->def,
+ reg->num_components, NULL);
+
/*
* We could just insert the undefined instruction before the instruction
* we're rewriting, but we could be rewriting a phi source in which case
@@ -254,13 +251,8 @@ rewrite_def_forwards(nir_dest *dest, void *_state)
name = ralloc_asprintf(state->mem_ctx, "%s_%u", dest->reg.reg->name,
state->states[index].num_defs);
- dest->ssa.index = state->impl->ssa_alloc++;
- dest->ssa.num_components = reg->num_components;
- dest->ssa.parent_instr = state->parent_instr;
- dest->ssa.uses = _mesa_set_create(state->mem_ctx, _mesa_key_pointer_equal);
- dest->ssa.if_uses = _mesa_set_create(state->mem_ctx,
- _mesa_key_pointer_equal);
- dest->ssa.name = name;
+ nir_ssa_def_init(state->impl, state->parent_instr, &dest->ssa,
+ reg->num_components, name);
/* push our SSA destination on the stack */
state->states[index].index++;
@@ -327,14 +319,8 @@ rewrite_alu_instr_forward(nir_alu_instr *instr, rewrite_state *state)
instr->dest.write_mask = (1 << num_components) - 1;
instr->dest.dest.is_ssa = true;
- instr->dest.dest.ssa.index = state->impl->ssa_alloc++;
- instr->dest.dest.ssa.num_components = num_components;
- instr->dest.dest.ssa.name = name;
- instr->dest.dest.ssa.parent_instr = &instr->instr;
- instr->dest.dest.ssa.uses = _mesa_set_create(state->mem_ctx,
- _mesa_key_pointer_equal);
- instr->dest.dest.ssa.if_uses = _mesa_set_create(state->mem_ctx,
- _mesa_key_pointer_equal);
+ nir_ssa_def_init(state->impl, &instr->instr, &instr->dest.dest.ssa,
+ num_components, name);
if (nir_op_infos[instr->op].output_size == 0) {
/*