Added equiv_status

diff --git a/passes/sat/Makefile.inc b/passes/sat/Makefile.inc
index eb919eb21b7e03c76710322487ca49662cd910e3..18bd6561eba1035a9ee33be959be5c0dc3f18141 100644 (file)
--- a/passes/sat/Makefile.inc
+++ b/passes/sat/Makefile.inc
@@ -5,4 +5,5 @@ OBJS += passes/sat/eval.o
 OBJS += passes/sat/miter.o
 OBJS += passes/sat/expose.o
 OBJS += passes/sat/equiv_make.o
+OBJS += passes/sat/equiv_status.o
 

diff --git a/passes/sat/equiv_status.cc b/passes/sat/equiv_status.cc
new file mode 100644 (file)
index 0000000..bcd09cd
--- /dev/null
+++ b/passes/sat/equiv_status.cc
@@ -0,0 +1,94 @@
+/*
+ *  yosys -- Yosys Open SYnthesis Suite
+ *
+ *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
+ *  
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *  
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "kernel/yosys.h"
+
+USING_YOSYS_NAMESPACE
+PRIVATE_NAMESPACE_BEGIN
+
+struct EquivStatusPass : public Pass {
+       EquivStatusPass() : Pass("equiv_status", "print status of equivalent checking module") { }
+       virtual void help()
+       {
+               //   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+               log("\n");
+               log("    equiv_status [options] [selection]\n");
+               log("\n");
+               log("This command prints status information for all selected $equiv cells.\n");
+               log("\n");
+               log("    -assert\n");
+               log("        produce an error if any unproven $equiv cell is found\n");
+               log("\n");
+       }
+       virtual void execute(std::vector<std::string> args, Design *design)
+       {
+               bool assert_mode = false;
+               int unproven_count = 0;
+
+               log_header("Executing EQUIV_STATUS pass.\n");
+
+               size_t argidx;
+               for (argidx = 1; argidx < args.size(); argidx++) {
+                       if (args[argidx] == "-assert") {
+                               assert_mode = true;
+                               continue;
+                       }
+                       break;
+               }
+               extra_args(args, argidx, design);
+
+               for (auto module : design->selected_modules())
+               {
+                       vector<Cell*> unproven_equiv_cells;
+                       int proven_equiv_cells = 0;
+
+                       for (auto cell : module->selected_cells())
+                               if (cell->type == "$equiv") {
+                                       if (cell->getPort("\\A") != cell->getPort("\\B"))
+                                               unproven_equiv_cells.push_back(cell);
+                                       else
+                                               proven_equiv_cells++;
+                               }
+
+                       if (unproven_equiv_cells.empty() && !proven_equiv_cells) {
+                               log("No $equiv cells found in %s.\n", log_id(module));
+                               continue;
+                       }
+
+                       log("Found %d $equiv cells found in %s:\n", GetSize(unproven_equiv_cells) + proven_equiv_cells, log_id(module));
+                       log("  Of those cells %d are proven and %d are unproven.\n", proven_equiv_cells, GetSize(unproven_equiv_cells));
+                       if (unproven_equiv_cells.empty()) {
+                               log("  Equivalence successfully proven!\n");
+                       } else {
+                               for (auto cell : unproven_equiv_cells)
+                                       log("  Unproven $equiv %s: %s %s\n", log_id(cell), log_signal(cell->getPort("\\A")), log_signal(cell->getPort("\\B")));
+                       }
+
+                       unproven_count += GetSize(unproven_equiv_cells);
+               }
+
+               if (unproven_count != 0) {
+                       log("Found a total of %d unproven $equiv cells.\n", unproven_count);
+                       if (assert_mode && unproven_count != 0)
+                               log_error("Found %d unproven $equiv cells in 'equiv_status -assert'.\n", unproven_count);
+               }
+       }
+} EquivStatusPass;
+
+PRIVATE_NAMESPACE_END