diff options
Diffstat (limited to 'frontends/verilog/verilog_parser.y')
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 96 |
1 files changed, 60 insertions, 36 deletions
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 6c4b06d7f..8bd58d24c 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -282,7 +282,7 @@ static void rewriteAsMemoryNode(AstNode *node, AstNode *rangeNode) %token TOK_OR_ASSIGN TOK_XOR_ASSIGN TOK_AND_ASSIGN TOK_SUB_ASSIGN %type <ast> range range_or_multirange non_opt_range non_opt_multirange range_or_signed_int -%type <ast> wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list +%type <ast> wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list non_io_wire_type io_wire_type %type <string> opt_label opt_sva_label tok_prim_wrapper hierarchical_id hierarchical_type_id integral_number %type <string> type_name %type <ast> opt_enum_init enum_type struct_type non_wire_data_type @@ -619,26 +619,19 @@ non_opt_delay: delay: non_opt_delay | %empty; -wire_type: - { - astbuf3 = new AstNode(AST_WIRE); - current_wire_rand = false; - current_wire_const = false; - } wire_type_token_list { - $$ = astbuf3; - SET_RULE_LOC(@$, @2, @$); - }; +io_wire_type: + { astbuf3 = new AstNode(AST_WIRE); current_wire_rand = false; current_wire_const = false; } + wire_type_token_io wire_type_const_rand opt_wire_type_token wire_type_signedness + { $$ = astbuf3; SET_RULE_LOC(@$, @2, @$); }; -wire_type_token_list: - wire_type_token | - wire_type_token_list wire_type_token | - wire_type_token_io | - hierarchical_type_id { - astbuf3->is_custom_type = true; - astbuf3->children.push_back(new AstNode(AST_WIRETYPE)); - astbuf3->children.back()->str = *$1; - delete $1; - }; +non_io_wire_type: + { astbuf3 = new AstNode(AST_WIRE); current_wire_rand = false; current_wire_const = false; } + wire_type_const_rand wire_type_token wire_type_signedness + { $$ = astbuf3; SET_RULE_LOC(@$, @2, @$); }; + +wire_type: + io_wire_type | + non_io_wire_type; wire_type_token_io: TOK_INPUT { @@ -652,8 +645,32 @@ wire_type_token_io: astbuf3->is_output = true; }; +wire_type_signedness: + TOK_SIGNED { astbuf3->is_signed = true; } | + TOK_UNSIGNED { astbuf3->is_signed = false; } | + %empty; + +wire_type_const_rand: + TOK_RAND TOK_CONST { + current_wire_rand = true; + current_wire_const = true; + } | + TOK_CONST { + current_wire_const = true; + } | + TOK_RAND { + current_wire_rand = true; + } | + %empty; + +opt_wire_type_token: + wire_type_token | %empty; + wire_type_token: - TOK_WIRE { + hierarchical_type_id { + astbuf3->is_custom_type = true; + astbuf3->children.push_back(new AstNode(AST_WIRETYPE)); + astbuf3->children.back()->str = *$1; } | TOK_WOR { astbuf3->is_wor = true; @@ -661,20 +678,27 @@ wire_type_token: TOK_WAND { astbuf3->is_wand = true; } | + // wires + TOK_WIRE { + } | + TOK_WIRE logic_type { + } | + // regs TOK_REG { astbuf3->is_reg = true; } | - TOK_LOGIC { - astbuf3->is_logic = true; + TOK_VAR TOK_REG { + astbuf3->is_reg = true; } | + // logics TOK_VAR { astbuf3->is_logic = true; } | - TOK_INTEGER { - astbuf3->is_reg = true; - astbuf3->range_left = 31; - astbuf3->range_right = 0; - astbuf3->is_signed = true; + TOK_VAR logic_type { + astbuf3->is_logic = true; + } | + logic_type { + astbuf3->is_logic = true; } | TOK_GENVAR { astbuf3->type = AST_GENVAR; @@ -682,15 +706,15 @@ wire_type_token: astbuf3->is_signed = true; astbuf3->range_left = 31; astbuf3->range_right = 0; + }; + +logic_type: + TOK_LOGIC { } | - TOK_SIGNED { + TOK_INTEGER { + astbuf3->range_left = 31; + astbuf3->range_right = 0; astbuf3->is_signed = true; - } | - TOK_RAND { - current_wire_rand = true; - } | - TOK_CONST { - current_wire_const = true; }; non_opt_range: @@ -1803,7 +1827,7 @@ type_name: TOK_ID // first time seen ; typedef_decl: - TOK_TYPEDEF wire_type range type_name range_or_multirange ';' { + TOK_TYPEDEF non_io_wire_type range type_name range_or_multirange ';' { astbuf1 = $2; astbuf2 = checkRange(astbuf1, $3); if (astbuf2) |