diff options
Diffstat (limited to 'techlibs/common/synth.cc')
| -rw-r--r-- | techlibs/common/synth.cc | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/techlibs/common/synth.cc b/techlibs/common/synth.cc index e41c0fe97..555de9fba 100644 --- a/techlibs/common/synth.cc +++ b/techlibs/common/synth.cc @@ -75,13 +75,16 @@ struct SynthPass : public ScriptPass 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(" -abc9\n"); + log(" use new ABC9 flow (EXPERIMENTAL)\n"); + log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); help_script(); log("\n"); } - string top_module, fsm_opts, memory_opts; + string top_module, fsm_opts, memory_opts, abc; bool autotop, flatten, noalumacc, nofsm, noabc, noshare; int lut; @@ -98,6 +101,7 @@ struct SynthPass : public ScriptPass nofsm = false; noabc = false; noshare = false; + abc = "abc"; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -159,6 +163,10 @@ struct SynthPass : public ScriptPass noshare = true; continue; } + if (args[argidx] == "-abc9") { + abc = "abc9"; + continue; + } break; } extra_args(args, argidx, design); @@ -166,6 +174,9 @@ struct SynthPass : public ScriptPass if (!design->full_selection()) log_cmd_error("This command only operates on fully selected designs!\n"); + if (abc == "abc9" && !lut) + log_cmd_error("ABC9 flow only supported for FPGA synthesis (using '-lut' option)"); + log_header(design, "Executing SYNTH pass.\n"); log_push(); @@ -241,15 +252,15 @@ struct SynthPass : public ScriptPass #ifdef YOSYS_ENABLE_ABC if (help_mode) { - run("abc -fast", " (unless -noabc, unless -lut)"); - run("abc -fast -lut k", "(unless -noabc, if -lut)"); + run(abc + " -fast", " (unless -noabc, unless -lut)"); + run(abc + " -fast -lut k", "(unless -noabc, if -lut)"); } else { if (lut) - run(stringf("abc -fast -lut %d", lut)); + run(stringf("%s -fast -lut %d", abc.c_str(), lut)); else - run("abc -fast"); + run(abc + " -fast"); } run("opt -fast", " (unless -noabc)"); #endif |