mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-11-04 13:29:12 +00:00
Code Activity

Added opt -purge (frontend to opt_clean -purge)

Browse source
This commit is contained in:
Clifford Wolf 2014-02-08 14:21:34 +01:00
parent 922d1c9520
commit 82c98bbbe6
1 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
passes/opt/opt.cc
View file

@ -31,7 +31,7 @@ struct OptPass : public Pass {
{ {
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n"); log("\n");
log(" opt [-mux_undef] [-mux_bool] [-undriven] [selection]\n"); log(" opt [-purge] [-mux_undef] [-mux_bool] [-undriven] [selection]\n");
log("\n"); log("\n");
log("This pass calls all the other opt_* passes in a useful order. This performs\n"); log("This pass calls all the other opt_* passes in a useful order. This performs\n");
log("a series of trivial optimizations and cleanups. This pass executes the other\n"); log("a series of trivial optimizations and cleanups. This pass executes the other\n");
@ -45,13 +45,14 @@ struct OptPass : public Pass {
log(" opt_reduce\n"); log(" opt_reduce\n");
log(" opt_share\n"); log(" opt_share\n");
log(" opt_rmdff\n"); log(" opt_rmdff\n");
log(" opt_clean\n"); log(" opt_clean [-purge]\n");
log(" opt_const [-mux_undef] [-mux_bool] [-undriven]\n"); log(" opt_const [-mux_undef] [-mux_bool] [-undriven]\n");
log(" while [changed design]\n"); log(" while [changed design]\n");
log("\n"); log("\n");
} }
virtual void execute(std::vector<std::string> args, RTLIL::Design *design) virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{ {
std::string opt_clean_args;
std::string opt_const_args; std::string opt_const_args;
log_header("Executing OPT pass (performing simple optimizations).\n"); log_header("Executing OPT pass (performing simple optimizations).\n");
@ -59,6 +60,10 @@ struct OptPass : public Pass {
size_t argidx; size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) { for (argidx = 1; argidx < args.size(); argidx++) {
if (args[argidx] == "-purge") {
opt_clean_args += " -purge";
continue;
}
if (args[argidx] == "-mux_undef") { if (args[argidx] == "-mux_undef") {
opt_const_args += " -mux_undef"; opt_const_args += " -mux_undef";
continue; continue;
@ -86,7 +91,7 @@ struct OptPass : public Pass {
Pass::call(design, "opt_reduce"); Pass::call(design, "opt_reduce");
Pass::call(design, "opt_share"); Pass::call(design, "opt_share");
Pass::call(design, "opt_rmdff"); Pass::call(design, "opt_rmdff");
Pass::call(design, "opt_clean"); Pass::call(design, "opt_clean" + opt_clean_args);
Pass::call(design, "opt_const" + opt_const_args); Pass::call(design, "opt_const" + opt_const_args);
if (OPT_DID_SOMETHING == false) if (OPT_DID_SOMETHING == false)
break; break;