diff options
Diffstat (limited to 'frontends/ast/ast.cc')
| -rw-r--r-- | frontends/ast/ast.cc | 88 |
1 files changed, 84 insertions, 4 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index d48996167..9f88b08c1 100644 --- a/frontends/ast/ast.cc +++ b/frontends/ast/ast.cc @@ -46,7 +46,7 @@ namespace AST { // instantiate global variables (private API) namespace AST_INTERNAL { bool flag_dump_ast1, flag_dump_ast2, flag_no_dump_ptr, flag_dump_vlog1, flag_dump_vlog2, flag_dump_rtlil, flag_nolatches, flag_nomeminit; - bool flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_icells, flag_autowire; + bool flag_nomem2reg, flag_mem2reg, flag_noblackbox, flag_lib, flag_nowb, flag_noopt, flag_icells, flag_autowire; AstNode *current_ast, *current_ast_mod; std::map<std::string, AstNode*> current_scope; const dict<RTLIL::SigBit, RTLIL::SigBit> *genRTLIL_subst_ptr = NULL; @@ -942,6 +942,20 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast if (!defer) { + bool blackbox_module = flag_lib; + + if (!blackbox_module && !flag_noblackbox) { + blackbox_module = true; + for (auto child : ast->children) { + if (child->type == AST_WIRE && (child->is_input || child->is_output)) + continue; + if (child->type == AST_PARAMETER || child->type == AST_LOCALPARAM) + continue; + blackbox_module = false; + break; + } + } + while (ast->simplify(!flag_noopt, false, false, 0, -1, false, false)) { } if (flag_dump_ast2) { @@ -956,7 +970,63 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast log("--- END OF AST DUMP ---\n"); } - if (flag_lib) { + if (flag_nowb && ast->attributes.count("\\whitebox")) { + delete ast->attributes.at("\\whitebox"); + ast->attributes.erase("\\whitebox"); + } + + if (ast->attributes.count("\\lib_whitebox")) { + if (!flag_lib || flag_nowb) { + delete ast->attributes.at("\\lib_whitebox"); + ast->attributes.erase("\\lib_whitebox"); + } else { + if (ast->attributes.count("\\whitebox")) { + delete ast->attributes.at("\\whitebox"); + ast->attributes.erase("\\whitebox"); + } + AstNode *n = ast->attributes.at("\\lib_whitebox"); + ast->attributes["\\whitebox"] = n; + ast->attributes.erase("\\lib_whitebox"); + } + } + + if (!blackbox_module && ast->attributes.count("\\blackbox")) { + AstNode *n = ast->attributes.at("\\blackbox"); + if (n->type != AST_CONSTANT) + log_file_error(ast->filename, ast->linenum, "Got blackbox attribute with non-constant value!\n"); + blackbox_module = n->asBool(); + } + + if (blackbox_module && ast->attributes.count("\\whitebox")) { + AstNode *n = ast->attributes.at("\\whitebox"); + if (n->type != AST_CONSTANT) + log_file_error(ast->filename, ast->linenum, "Got whitebox attribute with non-constant value!\n"); + blackbox_module = !n->asBool(); + } + + if (ast->attributes.count("\\noblackbox")) { + if (blackbox_module) { + AstNode *n = ast->attributes.at("\\noblackbox"); + if (n->type != AST_CONSTANT) + log_file_error(ast->filename, ast->linenum, "Got noblackbox attribute with non-constant value!\n"); + blackbox_module = !n->asBool(); + } + delete ast->attributes.at("\\noblackbox"); + ast->attributes.erase("\\noblackbox"); + } + + if (blackbox_module) + { + if (ast->attributes.count("\\whitebox")) { + delete ast->attributes.at("\\whitebox"); + ast->attributes.erase("\\whitebox"); + } + + if (ast->attributes.count("\\lib_whitebox")) { + delete ast->attributes.at("\\lib_whitebox"); + ast->attributes.erase("\\lib_whitebox"); + } + std::vector<AstNode*> new_children; for (auto child : ast->children) { if (child->type == AST_WIRE && (child->is_input || child->is_output)) { @@ -969,8 +1039,12 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast delete child; } } + ast->children.swap(new_children); - ast->attributes["\\blackbox"] = AstNode::mkconst_int(1, false); + + if (ast->attributes.count("\\blackbox") == 0) { + ast->attributes["\\blackbox"] = AstNode::mkconst_int(1, false); + } } ignoreThisSignalsInInitial = RTLIL::SigSpec(); @@ -1009,7 +1083,9 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast current_module->nomeminit = flag_nomeminit; current_module->nomem2reg = flag_nomem2reg; current_module->mem2reg = flag_mem2reg; + current_module->noblackbox = flag_noblackbox; current_module->lib = flag_lib; + current_module->nowb = flag_nowb; current_module->noopt = flag_noopt; current_module->icells = flag_icells; current_module->autowire = flag_autowire; @@ -1026,7 +1102,7 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast // create AstModule instances for all modules in the AST tree and add them to 'design' void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump_ast2, bool no_dump_ptr, bool dump_vlog1, bool dump_vlog2, bool dump_rtlil, - bool nolatches, bool nomeminit, bool nomem2reg, bool mem2reg, bool lib, bool noopt, bool icells, bool nooverwrite, bool overwrite, bool defer, bool autowire) + bool nolatches, bool nomeminit, bool nomem2reg, bool mem2reg, bool noblackbox, bool lib, bool nowb, bool noopt, bool icells, bool nooverwrite, bool overwrite, bool defer, bool autowire) { current_ast = ast; flag_dump_ast1 = dump_ast1; @@ -1039,7 +1115,9 @@ void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump flag_nomeminit = nomeminit; flag_nomem2reg = nomem2reg; flag_mem2reg = mem2reg; + flag_noblackbox = noblackbox; flag_lib = lib; + flag_nowb = nowb; flag_noopt = noopt; flag_icells = icells; flag_autowire = autowire; @@ -1373,7 +1451,9 @@ std::string AstModule::derive_common(RTLIL::Design *design, dict<RTLIL::IdString flag_nomeminit = nomeminit; flag_nomem2reg = nomem2reg; flag_mem2reg = mem2reg; + flag_noblackbox = noblackbox; flag_lib = lib; + flag_nowb = nowb; flag_noopt = noopt; flag_icells = icells; flag_autowire = autowire; |