diff options
| -rw-r--r-- | src/compiler/nir/nir_loop_analyze.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/src/compiler/nir/nir_loop_analyze.c b/src/compiler/nir/nir_loop_analyze.c index bc0c44ab1bb..438e1fac3ea 100644 --- a/src/compiler/nir/nir_loop_analyze.c +++ b/src/compiler/nir/nir_loop_analyze.c @@ -619,51 +619,6 @@ find_trip_count(loop_info_state *state) state->loop->info->limiting_terminator = limiting_terminator; } -/* Checks if we should force the loop to be unrolled regardless of size - * due to array access heuristics. - */ -static bool -force_unroll_array_access_var(loop_info_state *state, nir_shader *ns, - nir_deref_var *variable) -{ - nir_deref *tail = &variable->deref; - - while (tail->child != NULL) { - tail = tail->child; - - if (tail->deref_type == nir_deref_type_array) { - - nir_deref_array *deref_array = nir_deref_as_array(tail); - if (deref_array->deref_array_type != nir_deref_array_type_indirect) - continue; - - nir_loop_variable *array_index = - get_loop_var(deref_array->indirect.ssa, state); - - if (array_index->type != basic_induction) - continue; - - /* If an array is indexed by a loop induction variable, and the - * array size is exactly the number of loop iterations, this is - * probably a simple for-loop trying to access each element in - * turn; the application may expect it to be unrolled. - */ - if (glsl_get_length(variable->deref.type) == - state->loop->info->trip_count) { - state->loop->info->force_unroll = true; - return state->loop->info->force_unroll; - } - - if (variable->var->data.mode & state->indirect_mask) { - state->loop->info->force_unroll = true; - return state->loop->info->force_unroll; - } - } - } - - return false; -} - static bool force_unroll_array_access(loop_info_state *state, nir_shader *ns, nir_deref_instr *deref) @@ -708,17 +663,6 @@ force_unroll_heuristics(loop_info_state *state, nir_shader *ns, /* Check for arrays variably-indexed by a loop induction variable. * Unrolling the loop may convert that access into constant-indexing. */ - if (intrin->intrinsic == nir_intrinsic_load_var || - intrin->intrinsic == nir_intrinsic_store_var || - intrin->intrinsic == nir_intrinsic_copy_var) { - unsigned num_vars = - nir_intrinsic_infos[intrin->intrinsic].num_variables; - for (unsigned i = 0; i < num_vars; i++) { - if (force_unroll_array_access_var(state, ns, intrin->variables[i])) - return true; - } - } - if (intrin->intrinsic == nir_intrinsic_load_deref || intrin->intrinsic == nir_intrinsic_store_deref || intrin->intrinsic == nir_intrinsic_copy_deref) { |