diff options
Diffstat (limited to 'frontends/verilog/verilog_parser.y')
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 112 |
1 files changed, 26 insertions, 86 deletions
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 8234479cc..4afd72b73 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -274,7 +274,7 @@ hierarchical_id: $$ = $1; } | hierarchical_id TOK_PACKAGESEP TOK_ID { - if ($3->substr(0, 1) == "\\") + if ($3->compare(0, 1, "\\") == 0) *$1 += "::" + $3->substr(1); else *$1 += "::" + *$3; @@ -282,7 +282,7 @@ hierarchical_id: $$ = $1; } | hierarchical_id '.' TOK_ID { - if ($3->substr(0, 1) == "\\") + if ($3->compare(0, 1, "\\") == 0) *$1 += "." + $3->substr(1); else *$1 += "." + *$3; @@ -517,6 +517,7 @@ wire_type_token: TOK_GENVAR { astbuf3->type = AST_GENVAR; astbuf3->is_reg = true; + astbuf3->is_signed = true; astbuf3->range_left = 31; astbuf3->range_right = 0; } | @@ -1020,13 +1021,8 @@ list_of_specparam_assignments: specparam_assignment: ignspec_id '=' constant_mintypmax_expression ; -/* -pulsestyle_declaration : - ; - -showcancelled_declaration : - ; -*/ +ignspec_opt_cond: + TOK_IF '(' ignspec_expr ')' | /* empty */; path_declaration : simple_path_declaration ';' @@ -1035,8 +1031,8 @@ path_declaration : ; simple_path_declaration : - parallel_path_description '=' path_delay_value | - full_path_description '=' path_delay_value + ignspec_opt_cond parallel_path_description '=' path_delay_value | + ignspec_opt_cond full_path_description '=' path_delay_value ; path_delay_value : @@ -1046,32 +1042,20 @@ path_delay_value : ; list_of_path_delay_extra_expressions : -/* - t_path_delay_expression - | trise_path_delay_expression ',' tfall_path_delay_expression - | trise_path_delay_expression ',' tfall_path_delay_expression ',' tz_path_delay_expression - | t01_path_delay_expression ',' t10_path_delay_expression ',' t0z_path_delay_expression ',' - tz1_path_delay_expression ',' t1z_path_delay_expression ',' tz0_path_delay_expression - | t01_path_delay_expression ',' t10_path_delay_expression ',' t0z_path_delay_expression ',' - tz1_path_delay_expression ',' t1z_path_delay_expression ',' tz0_path_delay_expression ',' - t0x_path_delay_expression ',' tx1_path_delay_expression ',' t1x_path_delay_expression ',' - tx0_path_delay_expression ',' txz_path_delay_expression ',' tzx_path_delay_expression -*/ - ',' path_delay_expression - | ',' path_delay_expression ',' path_delay_expression - | ',' path_delay_expression ',' path_delay_expression ',' - path_delay_expression ',' path_delay_expression ',' path_delay_expression - | ',' path_delay_expression ',' path_delay_expression ',' - path_delay_expression ',' path_delay_expression ',' path_delay_expression ',' - path_delay_expression ',' path_delay_expression ',' path_delay_expression ',' - path_delay_expression ',' path_delay_expression ',' path_delay_expression - ; + ',' path_delay_expression | ',' path_delay_expression list_of_path_delay_extra_expressions; + +specify_edge_identifier : + TOK_POSEDGE | TOK_NEGEDGE ; parallel_path_description : - '(' specify_input_terminal_descriptor opt_polarity_operator '=' '>' specify_output_terminal_descriptor ')' ; + '(' specify_input_terminal_descriptor opt_polarity_operator '=' '>' specify_output_terminal_descriptor ')' | + '(' specify_edge_identifier specify_input_terminal_descriptor '=' '>' '(' specify_output_terminal_descriptor opt_polarity_operator ':' ignspec_expr ')' ')' | + '(' specify_edge_identifier specify_input_terminal_descriptor '=' '>' '(' specify_output_terminal_descriptor TOK_POS_INDEXED ignspec_expr ')' ')' ; full_path_description : - '(' list_of_path_inputs '*' '>' list_of_path_outputs ')' ; + '(' list_of_path_inputs '*' '>' list_of_path_outputs ')' | + '(' specify_edge_identifier list_of_path_inputs '*' '>' '(' list_of_path_outputs opt_polarity_operator ':' ignspec_expr ')' ')' | + '(' specify_edge_identifier list_of_path_inputs '*' '>' '(' list_of_path_outputs TOK_POS_INDEXED ignspec_expr ')' ')' ; // This was broken into 2 rules to solve shift/reduce conflicts list_of_path_inputs : @@ -1111,56 +1095,6 @@ system_timing_args : system_timing_arg | system_timing_args ',' system_timing_arg ; -/* -t_path_delay_expression : - path_delay_expression; - -trise_path_delay_expression : - path_delay_expression; - -tfall_path_delay_expression : - path_delay_expression; - -tz_path_delay_expression : - path_delay_expression; - -t01_path_delay_expression : - path_delay_expression; - -t10_path_delay_expression : - path_delay_expression; - -t0z_path_delay_expression : - path_delay_expression; - -tz1_path_delay_expression : - path_delay_expression; - -t1z_path_delay_expression : - path_delay_expression; - -tz0_path_delay_expression : - path_delay_expression; - -t0x_path_delay_expression : - path_delay_expression; - -tx1_path_delay_expression : - path_delay_expression; - -t1x_path_delay_expression : - path_delay_expression; - -tx0_path_delay_expression : - path_delay_expression; - -txz_path_delay_expression : - path_delay_expression; - -tzx_path_delay_expression : - path_delay_expression; -*/ - path_delay_expression : ignspec_constant_expression; @@ -1400,7 +1334,13 @@ wire_name: node->children.push_back(rng); } node->type = AST_MEMORY; - node->children.push_back($2); + auto *rangeNode = $2; + if (rangeNode->type == AST_RANGE && rangeNode->children.size() == 1) { + // SV array size [n], rewrite as [n-1:0] + rangeNode->children[0] = new AstNode(AST_SUB, rangeNode->children[0], AstNode::mkconst_int(1, true)); + rangeNode->children.push_back(AstNode::mkconst_int(0, false)); + } + node->children.push_back(rangeNode); } if (current_function_or_task == NULL) { if (do_not_require_port_stubs && (node->is_input || node->is_output) && port_stubs.count(*$1) == 0) { @@ -2244,7 +2184,7 @@ basic_expr: $$ = $1; } | '(' expr ')' TOK_CONSTVAL { - if ($4->substr(0, 1) != "'") + if ($4->compare(0, 1, "'") != 0) frontend_verilog_yyerror("Cast operation must be applied on sized constants e.g. (<expr>)<constval> , while %s is not a sized constant.", $4->c_str()); AstNode *bits = $2; AstNode *val = const2ast(*$4, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode); @@ -2254,7 +2194,7 @@ basic_expr: delete $4; } | hierarchical_id TOK_CONSTVAL { - if ($2->substr(0, 1) != "'") + if ($2->compare(0, 1, "'") != 0) frontend_verilog_yyerror("Cast operation must be applied on sized constants, e.g. <ID>\'d0, while %s is not a sized constant.", $2->c_str()); AstNode *bits = new AstNode(AST_IDENTIFIER); bits->str = *$1; |