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Added "opt -full" alias for all more aggressive optimizations

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This commit is contained in:
Clifford Wolf 2014-10-31 03:36:51 +01:00
parent a21481b338
commit ab28491f27
4 changed files with 35 additions and 9 deletions
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16
passes/opt/opt_const.cc
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@ -942,15 +942,18 @@ struct OptConstPass : public Pass {
log(" -undriven\n");
log(" replace undriven nets with undef (x) constants\n");
log("\n");
log(" -fine\n");
log(" perform fine-grain optimizations\n");
log("\n");
log(" -full\n");
log(" alias for -mux_undef -mux_bool -undriven -fine\n");
log("\n");
log(" -keepdc\n");
log(" some optimizations change the behavior of the circuit with respect to\n");
log(" don't-care bits. for example in 'a+0' a single x-bit in 'a' will cause\n");
log(" all result bits to be set to x. this behavior changes when 'a+0' is\n");
log(" replaced by 'a'. the -keepdc option disables all such optimizations.\n");
log("\n");
log(" -fine\n");
log(" perform fine-grain optimizations\n");
log("\n");
}
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
@ -981,6 +984,13 @@ struct OptConstPass : public Pass {
do_fine = true;
continue;
}
if (args[argidx] == "-full") {
mux_undef = true;
mux_bool = true;
undriven = true;
do_fine = true;
continue;
}
if (args[argidx] == "-keepdc") {
keepdc = true;
continue;