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Add "synth -noshare"

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2018-03-04 17:13:45 +01:00
parent 8dcf3d0c76
commit 27dd500d31
1 changed files with 11 additions and 2 deletions
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13
techlibs/common/synth.cc
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@ -64,6 +64,9 @@ struct SynthPass : public ScriptPass
log(" -nordff\n"); log(" -nordff\n");
log(" passed to 'memory'. prohibits merging of FFs into memory read ports\n"); log(" passed to 'memory'. prohibits merging of FFs into memory read ports\n");
log("\n"); log("\n");
log(" -noshare\n");
log(" do not run SAT-based resource sharing\n");
log("\n");
log(" -run <from_label>[:<to_label>]\n"); log(" -run <from_label>[:<to_label>]\n");
log(" only run the commands between the labels (see below). an empty\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(" from label is synonymous to 'begin', and empty to label is\n");
@ -76,7 +79,7 @@ struct SynthPass : public ScriptPass
} }
string top_module, fsm_opts, memory_opts; string top_module, fsm_opts, memory_opts;
bool autotop, flatten, noalumacc, nofsm, noabc; bool autotop, flatten, noalumacc, nofsm, noabc, noshare;
virtual void clear_flags() YS_OVERRIDE virtual void clear_flags() YS_OVERRIDE
{ {
@ -89,6 +92,7 @@ struct SynthPass : public ScriptPass
noalumacc = false; noalumacc = false;
nofsm = false; nofsm = false;
noabc = false; noabc = false;
noshare = false;
} }
virtual void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE virtual void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
@ -142,6 +146,10 @@ struct SynthPass : public ScriptPass
memory_opts += " -nordff"; memory_opts += " -nordff";
continue; continue;
} }
if (args[argidx] == "-noshare") {
noshare = true;
continue;
}
break; break;
} }
extra_args(args, argidx, design); extra_args(args, argidx, design);
@ -186,7 +194,8 @@ struct SynthPass : public ScriptPass
run("wreduce"); run("wreduce");
if (!noalumacc) if (!noalumacc)
run("alumacc"); run("alumacc");
run("share"); if (!noshare)
run("share");
run("opt"); run("opt");
if (!nofsm) if (!nofsm)
run("fsm" + fsm_opts); run("fsm" + fsm_opts);