recover_reduce: Reindent using tabs

1 files changed, 190 insertions, 190 deletions

diff --git a/passes/techmap/recover_reduce.cc b/passes/techmap/recover_reduce.cc
index dbd61b366..873b8ab26 100644
--- a/passes/techmap/recover_reduce.cc
+++ b/passes/techmap/recover_reduce.cc
@@ -24,196 +24,196 @@ USING_YOSYS_NAMESPACE
 PRIVATE_NAMESPACE_BEGIN
 
 struct RecoverReduceCorePass : public Pass {
-    enum GateType {
-        And,
-        Or,
-        Xor
-    };
-
-    RecoverReduceCorePass() : Pass("recover_reduce_core", "converts gate chains into $reduce_*") { }
-    virtual void help()
-    {
-        //   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
-        log("\n");
-        log("    recover_reduce_core\n");
-        log("\n");
-        log("converts gate chains into $reduce_*\n");
-        log("\n");
-        log("This performs the core step of the recover_reduce command. This step recognizes\n");
-        log("chains of gates found by the previous steps and converts these chains into one\n");
-        log("logical cell.\n");
-        log("\n");
-    }
-    virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
-    {
-        (void)args;
-
-        for (auto module : design->selected_modules())
-        {
-            SigMap sigmap(module);
-
-            // Index all of the nets in the module
-            dict<SigBit, Cell*> sig_to_driver;
-            dict<SigBit, pool<Cell*>> sig_to_sink;
-            for (auto cell : module->selected_cells())
-            {
-                for (auto &conn : cell->connections())
-                {
-                    if (cell->output(conn.first))
-                        for (auto bit : sigmap(conn.second))
-                            sig_to_driver[bit] = cell;
-
-                    if (cell->input(conn.first))
-                    {
-                        for (auto bit : sigmap(conn.second))
-                        {
-                            if (sig_to_sink.count(bit) == 0)
-                                sig_to_sink[bit] = pool<Cell*>();
-                            sig_to_sink[bit].insert(cell);
-                        }
-                    }
-                }
-            }
-
-            // Need to check if any wires connect to module ports
-            pool<SigBit> port_sigs;
-            for (auto wire : module->selected_wires())
-                if (wire->port_input || wire->port_output)
-                    for (auto bit : sigmap(wire))
-                        port_sigs.insert(bit);
-
-            // Actual logic starts here
-            pool<Cell*> consumed_cells;
-            for (auto cell : module->selected_cells())
-            {
-                if (consumed_cells.count(cell))
-                    continue;
-
-                GateType gt;
-
-                if (cell->type == "$_AND_")
-                    gt = GateType::And;
-                else if (cell->type == "$_OR_")
-                    gt = GateType::Or;
-                else if (cell->type == "$_XOR_")
-                    gt = GateType::Xor;
-                else
-                    continue;
-
-                log("Working on cell %s...\n", cell->name.c_str());
-
-                // Go all the way to the sink
-                Cell* head_cell = cell;
-                Cell* x = cell;
-                while (true)
-                {
-                    if (!((x->type == "$_AND_" && gt == GateType::And) ||
-                          (x->type == "$_OR_" && gt == GateType::Or) ||
-                          (x->type == "$_XOR_" && gt == GateType::Xor)))
-                        break;
-
-                    head_cell = x;
-
-                    auto y = sigmap(x->getPort("\\Y"));
-                    log_assert(y.size() == 1);
-
-                    // Should only continue if there is one fanout back into a cell (not to a port)
-                    if (sig_to_sink[y[0]].size() != 1)
-                        break;
-
-                    x = *sig_to_sink[y[0]].begin();
-                }
-
-                log("  Head cell is %s\n", head_cell->name.c_str());
-
-                pool<Cell*> cur_supercell;
-                std::deque<Cell*> bfs_queue = {head_cell};
-                while (bfs_queue.size())
-                {
-                    Cell* x = bfs_queue.front();
-                    bfs_queue.pop_front();
-
-                    cur_supercell.insert(x);
-
-                    auto a = sigmap(x->getPort("\\A"));
-                    log_assert(a.size() == 1);
-                    // Must have only one sink
-                    // XXX: Check that it is indeed this node?
-                    if (sig_to_sink[a[0]].size() + port_sigs.count(a[0]) == 1)
-                    {
-                        Cell* cell_a = sig_to_driver[a[0]];
-                        if (((cell_a->type == "$_AND_" && gt == GateType::And) ||
-                              (cell_a->type == "$_OR_" && gt == GateType::Or) ||
-                              (cell_a->type == "$_XOR_" && gt == GateType::Xor)))
-                        {
-                            // The cell here is the correct type, and it's definitely driving only
-                            // this current cell.
-                            bfs_queue.push_back(cell_a);
-                        }
-                    }
-
-                    auto b = sigmap(x->getPort("\\B"));
-                    log_assert(b.size() == 1);
-                    // Must have only one sink
-                    // XXX: Check that it is indeed this node?
-                    if (sig_to_sink[b[0]].size() + port_sigs.count(b[0]) == 1)
-                    {
-                        Cell* cell_b = sig_to_driver[b[0]];
-                        if (((cell_b->type == "$_AND_" && gt == GateType::And) ||
-                              (cell_b->type == "$_OR_" && gt == GateType::Or) ||
-                              (cell_b->type == "$_XOR_" && gt == GateType::Xor)))
-                        {
-                            // The cell here is the correct type, and it's definitely driving only
-                            // this current cell.
-                            bfs_queue.push_back(cell_b);
-                        }
-                    }
-                }
-
-                log("  Cells:\n");
-                for (auto x : cur_supercell)
-                    log("    %s\n", x->name.c_str());
-
-                if (cur_supercell.size() > 1)
-                {
-                    // Worth it to create reduce cell
-                    log("  Creating $reduce_* cell!\n");
-
-                    pool<SigBit> input_pool;
-                    pool<SigBit> input_pool_intermed;
-                    for (auto x : cur_supercell)
-                    {
-                        input_pool.insert(sigmap(x->getPort("\\A"))[0]);
-                        input_pool.insert(sigmap(x->getPort("\\B"))[0]);
-                        input_pool_intermed.insert(sigmap(x->getPort("\\Y"))[0]);
-                    }
-                    SigSpec input;
-                    for (auto b : input_pool)
-                        if (input_pool_intermed.count(b) == 0)
-                            input.append_bit(b);
-
-                    SigBit output = sigmap(head_cell->getPort("\\Y")[0]);
-
-                    auto new_reduce_cell = module->addCell(NEW_ID, 
-                        gt == GateType::And ? "$reduce_and" :
-                        gt == GateType::Or ? "$reduce_or" :
-                        gt == GateType::Xor ? "$reduce_xor" : "");
-                    new_reduce_cell->setParam("\\A_SIGNED", 0);
-                    new_reduce_cell->setParam("\\A_WIDTH", input.size());
-                    new_reduce_cell->setParam("\\Y_WIDTH", 1);
-                    new_reduce_cell->setPort("\\A", input);
-                    new_reduce_cell->setPort("\\Y", output);
-
-                    for (auto x : cur_supercell)
-                        consumed_cells.insert(x);
-                }
-            }
-
-            // Remove every cell that we've used up
-            for (auto cell : consumed_cells)
-                module->remove(cell);
-        }
-    }
+	enum GateType {
+		And,
+		Or,
+		Xor
+	};
+
+	RecoverReduceCorePass() : Pass("recover_reduce_core", "converts gate chains into $reduce_*") { }
+	virtual void help()
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    recover_reduce_core\n");
+		log("\n");
+		log("converts gate chains into $reduce_*\n");
+		log("\n");
+		log("This performs the core step of the recover_reduce command. This step recognizes\n");
+		log("chains of gates found by the previous steps and converts these chains into one\n");
+		log("logical cell.\n");
+		log("\n");
+	}
+	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
+	{
+		(void)args;
+
+		for (auto module : design->selected_modules())
+		{
+			SigMap sigmap(module);
+
+			// Index all of the nets in the module
+			dict<SigBit, Cell*> sig_to_driver;
+			dict<SigBit, pool<Cell*>> sig_to_sink;
+			for (auto cell : module->selected_cells())
+			{
+				for (auto &conn : cell->connections())
+				{
+					if (cell->output(conn.first))
+						for (auto bit : sigmap(conn.second))
+							sig_to_driver[bit] = cell;
+
+					if (cell->input(conn.first))
+					{
+						for (auto bit : sigmap(conn.second))
+						{
+							if (sig_to_sink.count(bit) == 0)
+								sig_to_sink[bit] = pool<Cell*>();
+							sig_to_sink[bit].insert(cell);
+						}
+					}
+				}
+			}
+
+			// Need to check if any wires connect to module ports
+			pool<SigBit> port_sigs;
+			for (auto wire : module->selected_wires())
+				if (wire->port_input || wire->port_output)
+					for (auto bit : sigmap(wire))
+						port_sigs.insert(bit);
+
+			// Actual logic starts here
+			pool<Cell*> consumed_cells;
+			for (auto cell : module->selected_cells())
+			{
+				if (consumed_cells.count(cell))
+					continue;
+
+				GateType gt;
+
+				if (cell->type == "$_AND_")
+					gt = GateType::And;
+				else if (cell->type == "$_OR_")
+					gt = GateType::Or;
+				else if (cell->type == "$_XOR_")
+					gt = GateType::Xor;
+				else
+					continue;
+
+				log("Working on cell %s...\n", cell->name.c_str());
+
+				// Go all the way to the sink
+				Cell* head_cell = cell;
+				Cell* x = cell;
+				while (true)
+				{
+					if (!((x->type == "$_AND_" && gt == GateType::And) ||
+						(x->type == "$_OR_" && gt == GateType::Or) ||
+						(x->type == "$_XOR_" && gt == GateType::Xor)))
+						break;
+
+					head_cell = x;
+
+					auto y = sigmap(x->getPort("\\Y"));
+					log_assert(y.size() == 1);
+
+					// Should only continue if there is one fanout back into a cell (not to a port)
+					if (sig_to_sink[y[0]].size() != 1)
+						break;
+
+					x = *sig_to_sink[y[0]].begin();
+				}
+
+				log("  Head cell is %s\n", head_cell->name.c_str());
+
+				pool<Cell*> cur_supercell;
+				std::deque<Cell*> bfs_queue = {head_cell};
+				while (bfs_queue.size())
+				{
+					Cell* x = bfs_queue.front();
+					bfs_queue.pop_front();
+
+					cur_supercell.insert(x);
+
+					auto a = sigmap(x->getPort("\\A"));
+					log_assert(a.size() == 1);
+					// Must have only one sink
+					// XXX: Check that it is indeed this node?
+					if (sig_to_sink[a[0]].size() + port_sigs.count(a[0]) == 1)
+					{
+						Cell* cell_a = sig_to_driver[a[0]];
+						if (((cell_a->type == "$_AND_" && gt == GateType::And) ||
+							(cell_a->type == "$_OR_" && gt == GateType::Or) ||
+							(cell_a->type == "$_XOR_" && gt == GateType::Xor)))
+						{
+							// The cell here is the correct type, and it's definitely driving only
+							// this current cell.
+							bfs_queue.push_back(cell_a);
+						}
+					}
+
+					auto b = sigmap(x->getPort("\\B"));
+					log_assert(b.size() == 1);
+					// Must have only one sink
+					// XXX: Check that it is indeed this node?
+					if (sig_to_sink[b[0]].size() + port_sigs.count(b[0]) == 1)
+					{
+						Cell* cell_b = sig_to_driver[b[0]];
+						if (((cell_b->type == "$_AND_" && gt == GateType::And) ||
+							(cell_b->type == "$_OR_" && gt == GateType::Or) ||
+							(cell_b->type == "$_XOR_" && gt == GateType::Xor)))
+						{
+							// The cell here is the correct type, and it's definitely driving only
+							// this current cell.
+							bfs_queue.push_back(cell_b);
+						}
+					}
+				}
+
+				log("  Cells:\n");
+				for (auto x : cur_supercell)
+					log("    %s\n", x->name.c_str());
+
+				if (cur_supercell.size() > 1)
+				{
+					// Worth it to create reduce cell
+					log("  Creating $reduce_* cell!\n");
+
+					pool<SigBit> input_pool;
+					pool<SigBit> input_pool_intermed;
+					for (auto x : cur_supercell)
+					{
+						input_pool.insert(sigmap(x->getPort("\\A"))[0]);
+						input_pool.insert(sigmap(x->getPort("\\B"))[0]);
+						input_pool_intermed.insert(sigmap(x->getPort("\\Y"))[0]);
+					}
+					SigSpec input;
+					for (auto b : input_pool)
+						if (input_pool_intermed.count(b) == 0)
+							input.append_bit(b);
+
+					SigBit output = sigmap(head_cell->getPort("\\Y")[0]);
+
+					auto new_reduce_cell = module->addCell(NEW_ID, 
+						gt == GateType::And ? "$reduce_and" :
+						gt == GateType::Or ? "$reduce_or" :
+						gt == GateType::Xor ? "$reduce_xor" : "");
+					new_reduce_cell->setParam("\\A_SIGNED", 0);
+					new_reduce_cell->setParam("\\A_WIDTH", input.size());
+					new_reduce_cell->setParam("\\Y_WIDTH", 1);
+					new_reduce_cell->setPort("\\A", input);
+					new_reduce_cell->setPort("\\Y", output);
+
+					for (auto x : cur_supercell)
+						consumed_cells.insert(x);
+					}
+				}
+
+			// Remove every cell that we've used up
+			for (auto cell : consumed_cells)
+				module->remove(cell);
+		}
+	}
 } RecoverReduceCorePass;
 
 PRIVATE_NAMESPACE_END