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-rw-r--r--src/glsl/nir/nir_opt_copy_propagate.c71
1 files changed, 10 insertions, 61 deletions
diff --git a/src/glsl/nir/nir_opt_copy_propagate.c b/src/glsl/nir/nir_opt_copy_propagate.c
index ee78e5aa09d..71367d001bb 100644
--- a/src/glsl/nir/nir_opt_copy_propagate.c
+++ b/src/glsl/nir/nir_opt_copy_propagate.c
@@ -93,62 +93,6 @@ is_swizzleless_move(nir_alu_instr *instr)
}
}
-typedef struct {
- nir_ssa_def *def;
- bool found;
-} search_def_state;
-
-static bool
-search_def(nir_src *src, void *_state)
-{
- search_def_state *state = (search_def_state *) _state;
-
- if (src->is_ssa && src->ssa == state->def)
- state->found = true;
-
- return true;
-}
-
-static void
-rewrite_src_instr(nir_src *src, nir_ssa_def *new_def, nir_instr *parent_instr)
-{
- nir_ssa_def *old_def = src->ssa;
-
- src->ssa = new_def;
-
- /*
- * The instruction could still use the old definition in one of its other
- * sources, so only remove the instruction from the uses if there are no
- * more uses left.
- */
-
- search_def_state search_state;
- search_state.def = old_def;
- search_state.found = false;
- nir_foreach_src(parent_instr, search_def, &search_state);
- if (!search_state.found) {
- struct set_entry *entry = _mesa_set_search(old_def->uses, parent_instr);
- assert(entry);
- _mesa_set_remove(old_def->uses, entry);
- }
-
- _mesa_set_add(new_def->uses, parent_instr);
-}
-
-static void
-rewrite_src_if(nir_if *if_stmt, nir_ssa_def *new_def)
-{
- nir_ssa_def *old_def = if_stmt->condition.ssa;
-
- if_stmt->condition.ssa = new_def;
-
- struct set_entry *entry = _mesa_set_search(old_def->if_uses, if_stmt);
- assert(entry);
- _mesa_set_remove(old_def->if_uses, entry);
-
- _mesa_set_add(new_def->if_uses, if_stmt);
-}
-
static bool
copy_prop_src(nir_src *src, nir_instr *parent_instr, nir_if *parent_if)
{
@@ -178,10 +122,14 @@ copy_prop_src(nir_src *src, nir_instr *parent_instr, nir_if *parent_if)
return false;
}
- if (parent_instr)
- rewrite_src_instr(src, alu_instr->src[0].src.ssa, parent_instr);
- else
- rewrite_src_if(parent_if, alu_instr->src[0].src.ssa);
+ if (parent_instr) {
+ nir_instr_rewrite_src(parent_instr, src,
+ nir_src_for_ssa(alu_instr->src[0].src.ssa));
+ } else {
+ assert(src == &parent_if->condition);
+ nir_if_rewrite_condition(parent_if,
+ nir_src_for_ssa(alu_instr->src[0].src.ssa));
+ }
return true;
}
@@ -234,7 +182,8 @@ copy_prop_alu_src(nir_alu_instr *parent_alu_instr, unsigned index)
for (unsigned i = 0; i < 4; i++)
src->swizzle[i] = new_swizzle[i];
- rewrite_src_instr(&src->src, def, &parent_alu_instr->instr);
+ nir_instr_rewrite_src(&parent_alu_instr->instr, &src->src,
+ nir_src_for_ssa(def));
return true;
}