From 375c4dddc19c7029b82d9d4482f32938b7f6cd85 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Wed, 29 Jan 2014 00:59:28 +0100 Subject: Added read_verilog -icells option --- frontends/ast/ast.cc | 8 ++++++-- frontends/ast/ast.h | 6 +++--- frontends/ast/genrtlil.cc | 2 ++ frontends/verilog/verilog_frontend.cc | 10 +++++++++- 4 files changed, 20 insertions(+), 6 deletions(-) diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index 20720051..40f7826f 100644 --- a/frontends/ast/ast.cc +++ b/frontends/ast/ast.cc @@ -46,7 +46,7 @@ namespace AST { // instanciate global variables (private API) namespace AST_INTERNAL { - bool flag_dump_ast1, flag_dump_ast2, flag_dump_vlog, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt; + bool flag_dump_ast1, flag_dump_ast2, flag_dump_vlog, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_icells; AstNode *current_ast, *current_ast_mod; std::map current_scope; RTLIL::SigSpec *genRTLIL_subst_from = NULL; @@ -826,11 +826,12 @@ static AstModule* process_module(AstNode *ast) current_module->mem2reg = flag_mem2reg; current_module->lib = flag_lib; current_module->noopt = flag_noopt; + current_module->icells = flag_icells; return current_module; } // 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 dump_vlog, bool nolatches, bool nomem2reg, bool mem2reg, bool lib, bool noopt, bool ignore_redef) +void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump_ast2, bool dump_vlog, bool nolatches, bool nomem2reg, bool mem2reg, bool lib, bool noopt, bool icells, bool ignore_redef) { current_ast = ast; flag_dump_ast1 = dump_ast1; @@ -841,6 +842,7 @@ void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump flag_mem2reg = mem2reg; flag_lib = lib; flag_noopt = noopt; + flag_icells = icells; assert(current_ast->type == AST_DESIGN); for (auto it = current_ast->children.begin(); it != current_ast->children.end(); it++) { @@ -877,6 +879,7 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, std::mapmem2reg = mem2reg; new_mod->lib = lib; new_mod->noopt = noopt; + new_mod->icells = icells; return new_mod; } diff --git a/frontends/ast/ast.h b/frontends/ast/ast.h index 14e7803b..caae679a 100644 --- a/frontends/ast/ast.h +++ b/frontends/ast/ast.h @@ -231,13 +231,13 @@ namespace AST }; // process an AST tree (ast must point to an AST_DESIGN node) and generate RTLIL code - void process(RTLIL::Design *design, AstNode *ast, bool dump_ast1 = false, bool dump_ast2 = false, bool dump_vlog = false, bool nolatches = false, bool nomem2reg = false, bool mem2reg = false, bool lib = false, bool noopt = false, bool ignore_redef = false); + void process(RTLIL::Design *design, AstNode *ast, bool dump_ast1 = false, bool dump_ast2 = false, bool dump_vlog = false, bool nolatches = false, bool nomem2reg = false, bool mem2reg = false, bool lib = false, bool noopt = false, bool icells = false, bool ignore_redef = false); // parametric modules are supported directly by the AST library // therfore we need our own derivate of RTLIL::Module with overloaded virtual functions struct AstModule : RTLIL::Module { AstNode *ast; - bool nolatches, nomem2reg, mem2reg, lib, noopt; + bool nolatches, nomem2reg, mem2reg, lib, noopt, icells; virtual ~AstModule(); virtual RTLIL::IdString derive(RTLIL::Design *design, std::map parameters); virtual RTLIL::Module *clone() const; @@ -258,7 +258,7 @@ namespace AST namespace AST_INTERNAL { // internal state variables - extern bool flag_dump_ast1, flag_dump_ast2, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt; + extern bool flag_dump_ast1, flag_dump_ast2, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_icells; extern AST::AstNode *current_ast, *current_ast_mod; extern std::map current_scope; extern RTLIL::SigSpec *genRTLIL_subst_from, *genRTLIL_subst_to, ignoreThisSignalsInInitial; diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc index 83a5c750..6001e278 100644 --- a/frontends/ast/genrtlil.cc +++ b/frontends/ast/genrtlil.cc @@ -1334,6 +1334,8 @@ RTLIL::SigSpec AstNode::genRTLIL(int width_hint, bool sign_hint) AstNode *child = *it; if (child->type == AST_CELLTYPE) { cell->type = child->str; + if (flag_icells && cell->type.substr(0, 2) == "\\$") + cell->type = cell->type.substr(1); continue; } if (child->type == AST_PARASET) { diff --git a/frontends/verilog/verilog_frontend.cc b/frontends/verilog/verilog_frontend.cc index 142e5e72..1f4a4c89 100644 --- a/frontends/verilog/verilog_frontend.cc +++ b/frontends/verilog/verilog_frontend.cc @@ -99,6 +99,9 @@ struct VerilogFrontend : public Frontend { log(" don't perform basic optimizations (such as const folding) in the\n"); log(" high-level front-end.\n"); log("\n"); + log(" -icells\n"); + log(" interpret cell types starting with '$' as internal cell types\n"); + log("\n"); log(" -ignore_redef\n"); log(" ignore re-definitions of modules. (the default behavior is to\n"); log(" create an error message.)\n"); @@ -127,6 +130,7 @@ struct VerilogFrontend : public Frontend { bool flag_nopp = false; bool flag_lib = false; bool flag_noopt = false; + bool flag_icells = false; bool flag_ignore_redef = false; std::map defines_map; std::list include_dirs; @@ -183,6 +187,10 @@ struct VerilogFrontend : public Frontend { flag_noopt = true; continue; } + if (arg == "-icells") { + flag_icells = true; + continue; + } if (arg == "-ignore_redef") { flag_ignore_redef = true; continue; @@ -228,7 +236,7 @@ struct VerilogFrontend : public Frontend { frontend_verilog_yyparse(); frontend_verilog_yylex_destroy(); - AST::process(design, current_ast, flag_dump_ast1, flag_dump_ast2, flag_dump_vlog, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_ignore_redef); + AST::process(design, current_ast, flag_dump_ast1, flag_dump_ast2, flag_dump_vlog, flag_nolatches, flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_icells, flag_ignore_redef); if (!flag_nopp) fclose(fp); -- cgit v1.2.3