diff options
Diffstat (limited to 'techlibs')
| -rw-r--r-- | techlibs/common/Makefile.inc | 1 | ||||
| -rw-r--r-- | techlibs/common/prep.cc | 156 |
2 files changed, 157 insertions, 0 deletions
diff --git a/techlibs/common/Makefile.inc b/techlibs/common/Makefile.inc index 5c50dea01..236d6c551 100644 --- a/techlibs/common/Makefile.inc +++ b/techlibs/common/Makefile.inc @@ -1,6 +1,7 @@ ifneq ($(SMALL),1) OBJS += techlibs/common/synth.o +OBJS += techlibs/common/prep.o endif GENFILES += techlibs/common/simlib_help.inc diff --git a/techlibs/common/prep.cc b/techlibs/common/prep.cc new file mode 100644 index 000000000..ebd329746 --- /dev/null +++ b/techlibs/common/prep.cc @@ -0,0 +1,156 @@ +/* + * 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/register.h" +#include "kernel/celltypes.h" +#include "kernel/rtlil.h" +#include "kernel/log.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +bool check_label(bool &active, std::string run_from, std::string run_to, std::string label) +{ + if (!run_from.empty() && run_from == run_to) { + active = (label == run_from); + } else { + if (label == run_from) + active = true; + if (label == run_to) + active = false; + } + return active; +} + +struct PrepPass : public Pass { + PrepPass() : Pass("prep", "generic synthesis script") { } + virtual void help() + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" prep [options]\n"); + log("\n"); + log("This command runs a conservative RTL synthesis. A typical application for this\n"); + log("is the preparation stage of a verification flow. This command does not operate\n"); + log("on partly selected designs.\n"); + log("\n"); + log(" -top <module>\n"); + log(" use the specified module as top module (default='top')\n"); + log("\n"); + log(" -nordff\n"); + log(" passed to 'memory_dff'. prohibits merging of FFs into memory read ports\n"); + log("\n"); + log(" -run <from_label>[:<to_label>]\n"); + log(" only run the commands between the labels (see below). an empty\n"); + log(" from label is synonymous to 'begin', and empty to label is\n"); + log(" synonymous to the end of the command list.\n"); + log("\n"); + log("\n"); + log("The following commands are executed by this synthesis command:\n"); + log("\n"); + log(" begin:\n"); + log(" hierarchy -check [-top <top>]\n"); + log("\n"); + log(" prep:\n"); + log(" proc\n"); + log(" opt_clean\n"); + log(" check\n"); + log(" opt -keepdc\n"); + log(" wreduce\n"); + log(" memory_dff [-nordff]\n"); + log(" opt_clean\n"); + log(" memory_collect\n"); + log(" opt -keepdc -fast\n"); + log("\n"); + log(" check:\n"); + log(" stat\n"); + log(" check\n"); + log("\n"); + } + virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + { + std::string top_module, memory_opts; + std::string run_from, run_to; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + if (args[argidx] == "-top" && argidx+1 < args.size()) { + top_module = args[++argidx]; + continue; + } + if (args[argidx] == "-run" && argidx+1 < args.size()) { + size_t pos = args[argidx+1].find(':'); + if (pos == std::string::npos) { + run_from = args[++argidx]; + run_to = args[argidx]; + } else { + run_from = args[++argidx].substr(0, pos); + run_to = args[argidx].substr(pos+1); + } + continue; + } + if (args[argidx] == "-nordff") { + memory_opts += " -nordff"; + continue; + } + break; + } + extra_args(args, argidx, design); + + if (!design->full_selection()) + log_cmd_error("This comannd only operates on fully selected designs!\n"); + + bool active = run_from.empty(); + + log_header("Executing PREP pass.\n"); + log_push(); + + if (check_label(active, run_from, run_to, "begin")) + { + if (top_module.empty()) + Pass::call(design, stringf("hierarchy -check")); + else + Pass::call(design, stringf("hierarchy -check -top %s", top_module.c_str())); + } + + if (check_label(active, run_from, run_to, "coarse")) + { + Pass::call(design, "proc"); + Pass::call(design, "opt_clean"); + Pass::call(design, "check"); + Pass::call(design, "opt -keepdc"); + Pass::call(design, "wreduce"); + Pass::call(design, "memory_dff" + memory_opts); + Pass::call(design, "opt_clean"); + Pass::call(design, "memory_collect"); + Pass::call(design, "opt -keepdc -fast"); + } + + if (check_label(active, run_from, run_to, "check")) + { + Pass::call(design, "stat"); + Pass::call(design, "check"); + } + + log_pop(); + } +} PrepPass; + +PRIVATE_NAMESPACE_END |