Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
return instr->var;
}
+bool nir_deref_instr_has_indirect(nir_deref_instr *instr);
+
bool nir_deref_instr_remove_if_unused(nir_deref_instr *instr);
typedef struct {
}
bool
+nir_deref_instr_has_indirect(nir_deref_instr *instr)
+{
+ while (instr->deref_type != nir_deref_type_var) {
+ /* Consider casts to be indirects */
+ if (instr->deref_type == nir_deref_type_cast)
+ return true;
+
+ if (instr->deref_type == nir_deref_type_array &&
+ !nir_src_as_const_value(instr->arr.index))
+ return true;
+
+ instr = nir_deref_instr_parent(instr);
+ }
+
+ return false;
+}
+
+bool
nir_remove_dead_derefs_impl(nir_function_impl *impl)
{
bool progress = false;