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| author | Clifford Wolf <clifford@clifford.at> | 2017-02-09 13:51:44 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2017-02-09 13:51:44 +0100 |
| commit | 848062088cfc702ba2f4616e1091f63c636bbe5b (patch) | |
| tree | 8707acb831d3afb34580c24b014e0a8db29a7c34 /frontends/verilog | |
| parent | 2ca8d483dde46e72f17f862ca117e2dd944e9709 (diff) | |
| download | yosys-848062088cfc702ba2f4616e1091f63c636bbe5b.tar.gz yosys-848062088cfc702ba2f4616e1091f63c636bbe5b.tar.bz2 yosys-848062088cfc702ba2f4616e1091f63c636bbe5b.zip | |
Add checker support to verilog front-end
Diffstat (limited to 'frontends/verilog')
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 20 | ||||
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 15 |
2 files changed, 24 insertions, 11 deletions
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index 97af0ae2d..ff2fa5753 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -175,15 +175,17 @@ YOSYS_NAMESPACE_END "always_ff" { SV_KEYWORD(TOK_ALWAYS); } "always_latch" { SV_KEYWORD(TOK_ALWAYS); } -"assert" { if (formal_mode) return TOK_ASSERT; SV_KEYWORD(TOK_ASSERT); } -"assume" { if (formal_mode) return TOK_ASSUME; SV_KEYWORD(TOK_ASSUME); } -"cover" { if (formal_mode) return TOK_COVER; SV_KEYWORD(TOK_COVER); } -"restrict" { if (formal_mode) return TOK_RESTRICT; SV_KEYWORD(TOK_RESTRICT); } -"property" { if (formal_mode) return TOK_PROPERTY; SV_KEYWORD(TOK_PROPERTY); } -"rand" { if (formal_mode) return TOK_RAND; SV_KEYWORD(TOK_RAND); } -"const" { if (formal_mode) return TOK_CONST; SV_KEYWORD(TOK_CONST); } -"logic" { SV_KEYWORD(TOK_REG); } -"bit" { SV_KEYWORD(TOK_REG); } +"assert" { if (formal_mode) return TOK_ASSERT; SV_KEYWORD(TOK_ASSERT); } +"assume" { if (formal_mode) return TOK_ASSUME; SV_KEYWORD(TOK_ASSUME); } +"cover" { if (formal_mode) return TOK_COVER; SV_KEYWORD(TOK_COVER); } +"restrict" { if (formal_mode) return TOK_RESTRICT; SV_KEYWORD(TOK_RESTRICT); } +"property" { if (formal_mode) return TOK_PROPERTY; SV_KEYWORD(TOK_PROPERTY); } +"rand" { if (formal_mode) return TOK_RAND; SV_KEYWORD(TOK_RAND); } +"const" { if (formal_mode) return TOK_CONST; SV_KEYWORD(TOK_CONST); } +"checker" { if (formal_mode) return TOK_CHECKER; SV_KEYWORD(TOK_CHECKER); } +"endchecker" { if (formal_mode) return TOK_ENDCHECKER; SV_KEYWORD(TOK_ENDCHECKER); } +"logic" { SV_KEYWORD(TOK_REG); } +"bit" { SV_KEYWORD(TOK_REG); } "input" { return TOK_INPUT; } "output" { return TOK_OUTPUT; } diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 3eb03dfd8..1879ff441 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -116,7 +116,7 @@ static void free_attr(std::map<std::string, AstNode*> *al) %token TOK_SUPPLY0 TOK_SUPPLY1 TOK_TO_SIGNED TOK_TO_UNSIGNED %token TOK_POS_INDEXED TOK_NEG_INDEXED TOK_ASSERT TOK_ASSUME %token TOK_RESTRICT TOK_COVER TOK_PROPERTY TOK_ENUM TOK_TYPEDEF -%token TOK_RAND TOK_CONST +%token TOK_RAND TOK_CONST TOK_CHECKER TOK_ENDCHECKER %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 @@ -465,7 +465,18 @@ module_body: module_body_stmt: task_func_decl | param_decl | localparam_decl | defparam_decl | wire_decl | assign_stmt | cell_stmt | - always_stmt | TOK_GENERATE module_gen_body TOK_ENDGENERATE | defattr | assert_property; + always_stmt | TOK_GENERATE module_gen_body TOK_ENDGENERATE | defattr | assert_property | checker_decl; + +checker_decl: + TOK_CHECKER TOK_ID ';' { + AstNode *node = new AstNode(AST_GENBLOCK); + node->str = *$2; + ast_stack.back()->children.push_back(node); + ast_stack.push_back(node); + } module_body TOK_ENDCHECKER { + delete $2; + ast_stack.pop_back(); + }; task_func_decl: attr TOK_DPI_FUNCTION TOK_ID TOK_ID { |