From 88f59770932720cfc1e987c98e53faedd7388ed8 Mon Sep 17 00:00:00 2001 From: tux3 Date: Wed, 5 Jun 2019 00:47:54 +0200 Subject: SystemVerilog support for implicit named port connections This is the `foo foo(.port1, .port2);` SystemVerilog syntax introduced in IEEE1800-2005. --- frontends/verilog/verilog_parser.y | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) (limited to 'frontends/verilog/verilog_parser.y') diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 8244a8f44..983445011 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -154,7 +154,7 @@ struct specify_rise_fall { %token TOK_INCREMENT TOK_DECREMENT TOK_UNIQUE TOK_PRIORITY %type range range_or_multirange non_opt_range non_opt_multirange range_or_signed_int -%type wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list +%type wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list named_port %type opt_label opt_sva_label tok_prim_wrapper hierarchical_id %type opt_signed opt_property unique_case_attr %type attr case_attr @@ -1541,18 +1541,26 @@ cell_port: astbuf2->children.push_back(node); node->children.push_back($1); } | - '.' TOK_ID '(' expr ')' { - AstNode *node = new AstNode(AST_ARGUMENT); - node->str = *$2; - astbuf2->children.push_back(node); - node->children.push_back($4); - delete $2; + named_port '(' ')' | // not connected + named_port '(' expr ')' { + ($1)->children.push_back($3); } | - '.' TOK_ID '(' ')' { + named_port { + // SV implied port + if (!sv_mode) + frontend_verilog_yyerror("Implicit .name port connection in port list (%s). This is not supported unless read_verilog is called with -sv!", $1->str.c_str()); + auto id_node = new AstNode(AST_IDENTIFIER); + id_node->str = ($1)->str; + ($1)->children.push_back(id_node); + }; + +named_port: + '.' TOK_ID { AstNode *node = new AstNode(AST_ARGUMENT); node->str = *$2; - astbuf2->children.push_back(node); delete $2; + astbuf2->children.push_back(node); + $$ = node; }; always_stmt: -- cgit v1.2.3 From a0b57f2a6ffae3b5770e38bf5a9af0df50db8522 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Fri, 7 Jun 2019 11:46:16 +0200 Subject: Cleanup tux3-implicit_named_connection Signed-off-by: Clifford Wolf --- frontends/verilog/verilog_parser.y | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'frontends/verilog/verilog_parser.y') diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 2fffc7536..6d3afed0e 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -154,7 +154,7 @@ struct specify_rise_fall { %token TOK_INCREMENT TOK_DECREMENT TOK_UNIQUE TOK_PRIORITY %type range range_or_multirange non_opt_range non_opt_multirange range_or_signed_int -%type wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list named_port +%type wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list %type opt_label opt_sva_label tok_prim_wrapper hierarchical_id %type opt_signed opt_property unique_case_attr %type attr case_attr -- cgit v1.2.3