diff options
Diffstat (limited to 'frontends/ast/ast.cc')
| -rw-r--r-- | frontends/ast/ast.cc | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index d48996167..720b3f3d1 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_lib, flag_wb, 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; @@ -956,7 +956,18 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast log("--- END OF AST DUMP ---\n"); } + if (flag_wb) { + if (!ast->attributes.count("\\whitebox")) + goto blackbox_module; + AstNode *n = ast->attributes.at("\\whitebox"); + if (n->type != AST_CONSTANT) + log_file_error(ast->filename, ast->linenum, "Whitebox attribute with non-constant value!\n"); + if (!n->asBool()) + goto blackbox_module; + } + if (flag_lib) { + blackbox_module: std::vector<AstNode*> new_children; for (auto child : ast->children) { if (child->type == AST_WIRE && (child->is_input || child->is_output)) { @@ -970,6 +981,10 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast } } ast->children.swap(new_children); + if (ast->attributes.count("\\whitebox")) { + delete ast->attributes.at("\\whitebox"); + ast->attributes.erase("\\whitebox"); + } ast->attributes["\\blackbox"] = AstNode::mkconst_int(1, false); } @@ -1010,6 +1025,7 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast current_module->nomem2reg = flag_nomem2reg; current_module->mem2reg = flag_mem2reg; current_module->lib = flag_lib; + current_module->wb = flag_wb; current_module->noopt = flag_noopt; current_module->icells = flag_icells; current_module->autowire = flag_autowire; @@ -1026,7 +1042,7 @@ 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 lib, bool wb, bool noopt, bool icells, bool nooverwrite, bool overwrite, bool defer, bool autowire) { current_ast = ast; flag_dump_ast1 = dump_ast1; @@ -1040,6 +1056,7 @@ void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump flag_nomem2reg = nomem2reg; flag_mem2reg = mem2reg; flag_lib = lib; + flag_wb = wb; flag_noopt = noopt; flag_icells = icells; flag_autowire = autowire; @@ -1374,6 +1391,7 @@ std::string AstModule::derive_common(RTLIL::Design *design, dict<RTLIL::IdString flag_nomem2reg = nomem2reg; flag_mem2reg = mem2reg; flag_lib = lib; + flag_wb = wb; flag_noopt = noopt; flag_icells = icells; flag_autowire = autowire; |