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Added "synth -nordff -noalumacc"

This commit is contained in:
Clifford Wolf 2015-06-15 17:07:40 +02:00
parent 52315039c5
commit ed128b82d7
1 changed files with 20 additions and 3 deletions
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23
techlibs/common/synth.cc
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@ -58,6 +58,13 @@ struct SynthPass : public Pass {
log(" -noabc\n");
log(" do not run abc (as if yosys was compiled without ABC support)\n");
log("\n");
log(" -noalumacc\n");
log(" do not run 'alumacc' pass. i.e. keep arithmetic operators in\n");
log(" their direct form ($add, $sub, etc.).\n");
log("\n");
log(" -nordff\n");
log(" passed to 'memory'. 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");
@ -102,8 +109,9 @@ struct SynthPass : public Pass {
}
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
std::string top_module, fsm_opts;
std::string top_module, fsm_opts, memory_opts;
std::string run_from, run_to;
bool noalumacc = false;
bool noabc = false;
size_t argidx;
@ -132,6 +140,14 @@ struct SynthPass : public Pass {
noabc = true;
continue;
}
if (args[argidx] == "-noalumacc") {
noalumacc = true;
continue;
}
if (args[argidx] == "-nordff") {
memory_opts += " -nordff";
continue;
}
break;
}
extra_args(args, argidx, design);
@ -159,12 +175,13 @@ struct SynthPass : public Pass {
Pass::call(design, "check");
Pass::call(design, "opt");
Pass::call(design, "wreduce");
Pass::call(design, "alumacc");
if (!noalumacc)
Pass::call(design, "alumacc");
Pass::call(design, "share");
Pass::call(design, "opt");
Pass::call(design, "fsm" + fsm_opts);
Pass::call(design, "opt -fast");
Pass::call(design, "memory -nomap");
Pass::call(design, "memory -nomap" + memory_opts);
Pass::call(design, "opt_clean");
}