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AmirhosseinPooladAmirhosseinPoolad
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Clean up prepacker
This commit changes two functions in the prepacker to get the specific element of the array they work with and not the entire array.
1 parent fbb2d1c commit 9ba0718

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+26
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‎vpr/src/pack/prepack.cpp

Lines changed: 26 additions & 39 deletions
Original file line numberDiff line numberDiff line change
@@ -53,14 +53,12 @@ static t_pb_graph_edge* find_expansion_edge_of_pattern(const int pattern_index,
5353
const t_pb_graph_node* pb_graph_node);
5454

5555
static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansion_edge,
56-
std::vector<t_pack_patterns>& list_of_packing_patterns,
57-
const int curr_pattern_index,
56+
t_pack_patterns& packing_pattern,
5857
int* L_num_blocks,
5958
const bool make_root_of_chain);
6059

6160
static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansion_edge,
62-
std::vector<t_pack_patterns>& list_of_packing_patterns,
63-
const int curr_pattern_index,
61+
t_pack_patterns& packing_pattern,
6462
t_pb_graph_pin* destination_pin,
6563
t_pack_pattern_block* destination_block,
6664
int* L_num_blocks);
@@ -160,7 +158,7 @@ static std::vector<t_pack_patterns> alloc_and_load_pack_patterns(const std::vect
160158
list_of_packing_patterns[i].base_cost = 0;
161159
// use the found expansion edge to build the pack pattern
162160
backward_expand_pack_pattern_from_edge(expansion_edge,
163-
list_of_packing_patterns, i, nullptr, nullptr, &L_num_blocks);
161+
list_of_packing_patterns[i], nullptr, nullptr, &L_num_blocks);
164162
list_of_packing_patterns[i].num_blocks = L_num_blocks;
165163

166164
/* Default settings: A section of a netlist must match all blocks in a pack
@@ -468,15 +466,15 @@ static t_pb_graph_edge* find_expansion_edge_of_pattern(const int pattern_index,
468466
* future multi-fanout support easier) so this function will not update connections
469467
*/
470468
static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansion_edge,
471-
std::vector<t_pack_patterns>& list_of_packing_patterns,
472-
const int curr_pattern_index,
469+
t_pack_patterns& packing_pattern,
473470
int* L_num_blocks,
474471
bool make_root_of_chain) {
475472
int i, j, k;
476473
int iport, ipin, iedge;
477474
bool found; /* Error checking, ensure only one fan-out for each pattern net */
478475
t_pack_pattern_block* destination_block = nullptr;
479476
t_pb_graph_node* destination_pb_graph_node = nullptr;
477+
int curr_pattern_index = packing_pattern.index;
480478

481479
found = expansion_edge->infer_pattern;
482480
// if the pack pattern shouldn't be inferred check if the expansion
@@ -511,7 +509,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
511509
// 2) assign an id to this pattern block, 3) increment the number of found blocks belonging to this
512510
// pattern and 4) expand all its edges to find the other primitives that belong to this pattern
513511
destination_block = new t_pack_pattern_block();
514-
list_of_packing_patterns[curr_pattern_index].base_cost += compute_primitive_base_cost(destination_pb_graph_node);
512+
packing_pattern.base_cost += compute_primitive_base_cost(destination_pb_graph_node);
515513
destination_block->block_id = *L_num_blocks;
516514
(*L_num_blocks)++;
517515
destination_pb_graph_node->temp_scratch_pad = (void*)destination_block;
@@ -523,8 +521,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
523521
for (ipin = 0; ipin < destination_pb_graph_node->num_input_pins[iport]; ipin++) {
524522
for (iedge = 0; iedge < destination_pb_graph_node->input_pins[iport][ipin].num_input_edges; iedge++) {
525523
backward_expand_pack_pattern_from_edge(destination_pb_graph_node->input_pins[iport][ipin].input_edges[iedge],
526-
list_of_packing_patterns,
527-
curr_pattern_index,
524+
packing_pattern,
528525
&destination_pb_graph_node->input_pins[iport][ipin],
529526
destination_block, L_num_blocks);
530527
}
@@ -536,8 +533,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
536533
for (ipin = 0; ipin < destination_pb_graph_node->num_output_pins[iport]; ipin++) {
537534
for (iedge = 0; iedge < destination_pb_graph_node->output_pins[iport][ipin].num_output_edges; iedge++) {
538535
forward_expand_pack_pattern_from_edge(destination_pb_graph_node->output_pins[iport][ipin].output_edges[iedge],
539-
list_of_packing_patterns,
540-
curr_pattern_index, L_num_blocks, false);
536+
packing_pattern, L_num_blocks, false);
541537
}
542538
}
543539
}
@@ -547,8 +543,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
547543
for (ipin = 0; ipin < destination_pb_graph_node->num_clock_pins[iport]; ipin++) {
548544
for (iedge = 0; iedge < destination_pb_graph_node->clock_pins[iport][ipin].num_input_edges; iedge++) {
549545
backward_expand_pack_pattern_from_edge(destination_pb_graph_node->clock_pins[iport][ipin].input_edges[iedge],
550-
list_of_packing_patterns,
551-
curr_pattern_index,
546+
packing_pattern,
552547
&destination_pb_graph_node->clock_pins[iport][ipin],
553548
destination_block, L_num_blocks);
554549
}
@@ -560,8 +555,8 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
560555
if (((t_pack_pattern_block*)destination_pb_graph_node->temp_scratch_pad)->pattern_index == curr_pattern_index) {
561556
// if this pb_graph_node is known to be the root of the chain, update the root block and root pin
562557
if (make_root_of_chain == true) {
563-
list_of_packing_patterns[curr_pattern_index].chain_root_pins = {{expansion_edge->output_pins[i]}};
564-
list_of_packing_patterns[curr_pattern_index].root_block = destination_block;
558+
packing_pattern.chain_root_pins = {{expansion_edge->output_pins[i]}};
559+
packing_pattern.root_block = destination_block;
565560
}
566561
}
567562

@@ -571,8 +566,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
571566
for (j = 0; j < expansion_edge->output_pins[i]->num_output_edges; j++) {
572567
if (expansion_edge->output_pins[i]->output_edges[j]->infer_pattern == true) {
573568
forward_expand_pack_pattern_from_edge(expansion_edge->output_pins[i]->output_edges[j],
574-
list_of_packing_patterns,
575-
curr_pattern_index,
569+
packing_pattern,
576570
L_num_blocks,
577571
make_root_of_chain);
578572
} else {
@@ -587,12 +581,11 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
587581
expansion_edge->output_pins[i]->parent_node->placement_index,
588582
expansion_edge->output_pins[i]->port->name,
589583
expansion_edge->output_pins[i]->pin_number,
590-
list_of_packing_patterns[curr_pattern_index].name);
584+
packing_pattern.name);
591585
}
592586
found = true;
593587
forward_expand_pack_pattern_from_edge(expansion_edge->output_pins[i]->output_edges[j],
594-
list_of_packing_patterns,
595-
curr_pattern_index,
588+
packing_pattern,
596589
L_num_blocks,
597590
make_root_of_chain);
598591
}
@@ -610,8 +603,7 @@ static void forward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansi
610603
* destination blocks
611604
*/
612605
static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expansion_edge,
613-
std::vector<t_pack_patterns>& list_of_packing_patterns,
614-
const int curr_pattern_index,
606+
t_pack_patterns& packing_pattern,
615607
t_pb_graph_pin* destination_pin,
616608
t_pack_pattern_block* destination_block,
617609
int* L_num_blocks) {
@@ -621,6 +613,7 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
621613
t_pack_pattern_block* source_block = nullptr;
622614
t_pb_graph_node* source_pb_graph_node = nullptr;
623615
t_pack_pattern_connections* pack_pattern_connection = nullptr;
616+
int curr_pattern_index = packing_pattern.index;
624617

625618
found = expansion_edge->infer_pattern;
626619
// if the pack pattern shouldn't be inferred check if the expansion
@@ -654,22 +647,21 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
654647
source_block = new t_pack_pattern_block();
655648
source_block->block_id = *L_num_blocks;
656649
(*L_num_blocks)++;
657-
list_of_packing_patterns[curr_pattern_index].base_cost += compute_primitive_base_cost(source_pb_graph_node);
650+
packing_pattern.base_cost += compute_primitive_base_cost(source_pb_graph_node);
658651
source_pb_graph_node->temp_scratch_pad = (void*)source_block;
659652
source_block->pattern_index = curr_pattern_index;
660653
source_block->pb_type = source_pb_graph_node->pb_type;
661654

662-
if (list_of_packing_patterns[curr_pattern_index].root_block == nullptr) {
663-
list_of_packing_patterns[curr_pattern_index].root_block = source_block;
655+
if (packing_pattern.root_block == nullptr) {
656+
packing_pattern.root_block = source_block;
664657
}
665658

666659
// explore the inputs of this primitive
667660
for (iport = 0; iport < source_pb_graph_node->num_input_ports; iport++) {
668661
for (ipin = 0; ipin < source_pb_graph_node->num_input_pins[iport]; ipin++) {
669662
for (iedge = 0; iedge < source_pb_graph_node->input_pins[iport][ipin].num_input_edges; iedge++) {
670663
backward_expand_pack_pattern_from_edge(source_pb_graph_node->input_pins[iport][ipin].input_edges[iedge],
671-
list_of_packing_patterns,
672-
curr_pattern_index,
664+
packing_pattern,
673665
&source_pb_graph_node->input_pins[iport][ipin],
674666
source_block,
675667
L_num_blocks);
@@ -682,8 +674,7 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
682674
for (ipin = 0; ipin < source_pb_graph_node->num_output_pins[iport]; ipin++) {
683675
for (iedge = 0; iedge < source_pb_graph_node->output_pins[iport][ipin].num_output_edges; iedge++) {
684676
forward_expand_pack_pattern_from_edge(source_pb_graph_node->output_pins[iport][ipin].output_edges[iedge],
685-
list_of_packing_patterns,
686-
curr_pattern_index,
677+
packing_pattern,
687678
L_num_blocks,
688679
false);
689680
}
@@ -695,8 +686,7 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
695686
for (ipin = 0; ipin < source_pb_graph_node->num_clock_pins[iport]; ipin++) {
696687
for (iedge = 0; iedge < source_pb_graph_node->clock_pins[iport][ipin].num_input_edges; iedge++) {
697688
backward_expand_pack_pattern_from_edge(source_pb_graph_node->clock_pins[iport][ipin].input_edges[iedge],
698-
list_of_packing_patterns,
699-
curr_pattern_index,
689+
packing_pattern,
700690
&source_pb_graph_node->clock_pins[iport][ipin],
701691
source_block,
702692
L_num_blocks);
@@ -739,11 +729,10 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
739729
if (expansion_edge->input_pins[i]->parent_node->pb_type->parent_mode == nullptr) {
740730
// This pack pattern extends to CLB (root pb block) input pin,
741731
// thus it extends across multiple logic blocks, treat as a chain
742-
list_of_packing_patterns[curr_pattern_index].is_chain = true;
732+
packing_pattern.is_chain = true;
743733
// since this input pin has not driving nets, expand in the forward direction instead
744734
forward_expand_pack_pattern_from_edge(expansion_edge,
745-
list_of_packing_patterns,
746-
curr_pattern_index,
735+
packing_pattern,
747736
L_num_blocks,
748737
true);
749738
}
@@ -754,8 +743,7 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
754743
// if pattern should be inferred for this edge continue the expansion backwards
755744
if (expansion_edge->input_pins[i]->input_edges[j]->infer_pattern == true) {
756745
backward_expand_pack_pattern_from_edge(expansion_edge->input_pins[i]->input_edges[j],
757-
list_of_packing_patterns,
758-
curr_pattern_index,
746+
packing_pattern,
759747
destination_pin,
760748
destination_block,
761749
L_num_blocks);
@@ -768,8 +756,7 @@ static void backward_expand_pack_pattern_from_edge(const t_pb_graph_edge* expans
768756
/* Check assumption that each forced net has only one fan-out */
769757
found = true;
770758
backward_expand_pack_pattern_from_edge(expansion_edge->input_pins[i]->input_edges[j],
771-
list_of_packing_patterns,
772-
curr_pattern_index,
759+
packing_pattern,
773760
destination_pin,
774761
destination_block,
775762
L_num_blocks);

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