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Added "prep -nomem"

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This commit is contained in:
Clifford Wolf 2016-08-30 23:57:24 +02:00
parent aa25a4cec6
commit 2ee9bf10d0
1 changed files with 16 additions and 6 deletions
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22
techlibs/common/prep.cc
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@ -57,6 +57,9 @@ struct PrepPass : public ScriptPass
log(" simulate verilog simulation behavior for out-of-bounds memory accesses\n"); log(" simulate verilog simulation behavior for out-of-bounds memory accesses\n");
log(" using the 'memory_memx' pass. This option implies -nordff.\n"); log(" using the 'memory_memx' pass. This option implies -nordff.\n");
log("\n"); log("\n");
log(" -nomem\n");
log(" do not run any of the memory_* passes\n");
log("\n");
log(" -nordff\n"); log(" -nordff\n");
log(" passed to 'memory_dff'. prohibits merging of FFs into memory read ports\n"); log(" passed to 'memory_dff'. prohibits merging of FFs into memory read ports\n");
log("\n"); log("\n");
@ -72,7 +75,7 @@ struct PrepPass : public ScriptPass
} }
string top_module, fsm_opts, memory_opts; string top_module, fsm_opts, memory_opts;
bool autotop, flatten, ifxmode, memxmode; bool autotop, flatten, ifxmode, memxmode, nomemmode;
virtual void clear_flags() YS_OVERRIDE virtual void clear_flags() YS_OVERRIDE
{ {
@ -83,6 +86,7 @@ struct PrepPass : public ScriptPass
flatten = false; flatten = false;
ifxmode = false; ifxmode = false;
memxmode = false; memxmode = false;
nomemmode = 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
@ -124,6 +128,10 @@ struct PrepPass : public ScriptPass
memory_opts += " -nordff"; memory_opts += " -nordff";
continue; continue;
} }
if (args[argidx] == "-nomem") {
nomemmode = true;
continue;
}
if (args[argidx] == "-nordff") { if (args[argidx] == "-nordff") {
memory_opts += " -nordff"; memory_opts += " -nordff";
continue; continue;
@ -179,11 +187,13 @@ struct PrepPass : public ScriptPass
else else
run(memxmode ? "wreduce -memx" : "wreduce"); run(memxmode ? "wreduce -memx" : "wreduce");
} }
run("memory_dff" + (help_mode ? " [-nordff]" : memory_opts)); if (!nomemmode) {
if (help_mode || memxmode) run("memory_dff" + (help_mode ? " [-nordff]" : memory_opts));
run("memory_memx", "(if -memx)"); if (help_mode || memxmode)
run("opt_clean"); run("memory_memx", "(if -memx)");
run("memory_collect"); run("opt_clean");
run("memory_collect");
}
run("opt -keepdc -fast"); run("opt -keepdc -fast");
} }