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| author | Clifford Wolf <clifford@clifford.at> | 2019-04-20 22:24:50 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2019-04-20 22:24:50 +0200 |
| commit | fb7f02be5561ccfd5bee5f3235fbbae5ef618f36 (patch) | |
| tree | 76e175ebc3419b6d0bc12cb2a6d5e557ac839af7 /frontends/verilog/verilog_frontend.cc | |
| parent | f84a84e3f1a27b361c21fcd30fcf50c1a6586629 (diff) | |
| download | yosys-fb7f02be5561ccfd5bee5f3235fbbae5ef618f36.tar.gz yosys-fb7f02be5561ccfd5bee5f3235fbbae5ef618f36.tar.bz2 yosys-fb7f02be5561ccfd5bee5f3235fbbae5ef618f36.zip | |
New behavior for front-end handling of whiteboxes
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'frontends/verilog/verilog_frontend.cc')
| -rw-r--r-- | frontends/verilog/verilog_frontend.cc | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/frontends/verilog/verilog_frontend.cc b/frontends/verilog/verilog_frontend.cc index 4e2c5abb5..ed6ce2ecb 100644 --- a/frontends/verilog/verilog_frontend.cc +++ b/frontends/verilog/verilog_frontend.cc @@ -145,12 +145,18 @@ struct VerilogFrontend : public Frontend { log(" -nodpi\n"); log(" disable DPI-C support\n"); log("\n"); + log(" -noblackbox\n"); + log(" do not automatically add a (* blackbox *) attribute to an\n"); + log(" empty module.\n"); + log("\n"); log(" -lib\n"); log(" only create empty blackbox modules. This implies -DBLACKBOX.\n"); + log(" modules with the (* whitebox *) attribute will be preserved.\n"); + log(" (* lib_whitebox *) will be treated like (* whitebox *).\n"); log("\n"); - log(" -wb\n"); - log(" like -lib, except do not touch modules with the whitebox\n"); - log(" attribute set. This also implies -DBLACKBOX.\n"); + log(" -nowb\n"); + log(" delete (* whitebox *) and (* lib_whitebox *) attributes from\n"); + log(" all modules.\n"); log("\n"); log(" -noopt\n"); log(" don't perform basic optimizations (such as const folding) in the\n"); @@ -231,8 +237,9 @@ struct VerilogFrontend : public Frontend { formal_mode = false; norestrict_mode = false; assume_asserts_mode = false; + noblackbox_mode = false; lib_mode = false; - wb_mode = false; + nowb_mode = false; default_nettype_wire = true; log_header(design, "Executing Verilog-2005 frontend.\n"); @@ -334,14 +341,17 @@ struct VerilogFrontend : public Frontend { flag_nodpi = true; continue; } - if (arg == "-lib" && !wb_mode) { + if (arg == "-noblackbox") { + noblackbox_mode = true; + continue; + } + if (arg == "-lib") { lib_mode = true; defines_map["BLACKBOX"] = string(); continue; } - if (arg == "-wb" && !lib_mode) { - wb_mode = true; - defines_map["BLACKBOX"] = string(); + if (arg == "-nowb") { + nowb_mode = true; continue; } if (arg == "-noopt") { @@ -439,7 +449,8 @@ struct VerilogFrontend : public Frontend { if (flag_nodpi) error_on_dpi_function(current_ast); - AST::process(design, current_ast, flag_dump_ast1, flag_dump_ast2, flag_no_dump_ptr, flag_dump_vlog1, flag_dump_vlog2, flag_dump_rtlil, flag_nolatches, flag_nomeminit, flag_nomem2reg, flag_mem2reg, lib_mode, wb_mode, flag_noopt, flag_icells, flag_nooverwrite, flag_overwrite, flag_defer, default_nettype_wire); + AST::process(design, current_ast, flag_dump_ast1, flag_dump_ast2, flag_no_dump_ptr, flag_dump_vlog1, flag_dump_vlog2, flag_dump_rtlil, flag_nolatches, + flag_nomeminit, flag_nomem2reg, flag_mem2reg, noblackbox_mode, lib_mode, nowb_mode, flag_noopt, flag_icells, flag_nooverwrite, flag_overwrite, flag_defer, default_nettype_wire); if (!flag_nopp) delete lexin; |