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| author | Clifford Wolf <clifford@clifford.at> | 2017-02-04 14:14:26 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2017-02-04 14:14:26 +0100 |
| commit | 3928482a3c4fb71b8e6ccdcb362c030eef34a479 (patch) | |
| tree | 482ea8a72c3bae5bafc377136d10426898cb8ac5 /frontends/verilog | |
| parent | 911c44d164e04026bd3a3a2eb1bf0c5d9cca5c19 (diff) | |
| download | yosys-3928482a3c4fb71b8e6ccdcb362c030eef34a479.tar.gz yosys-3928482a3c4fb71b8e6ccdcb362c030eef34a479.tar.bz2 yosys-3928482a3c4fb71b8e6ccdcb362c030eef34a479.zip | |
Add $cover cell type and SVA cover() support
Diffstat (limited to 'frontends/verilog')
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 1 | ||||
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 8 |
2 files changed, 8 insertions, 1 deletions
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index c22fdf39c..4d040e3d1 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -177,6 +177,7 @@ YOSYS_NAMESPACE_END "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); } "logic" { SV_KEYWORD(TOK_REG); } diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index ba47bf2d3..0f823a082 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -114,7 +114,7 @@ static void free_attr(std::map<std::string, AstNode*> *al) %token TOK_SYNOPSYS_FULL_CASE TOK_SYNOPSYS_PARALLEL_CASE %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_PROPERTY TOK_ENUM TOK_TYPEDEF +%token TOK_RESTRICT TOK_COVER TOK_PROPERTY TOK_ENUM TOK_TYPEDEF %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 @@ -1000,6 +1000,9 @@ assert: TOK_ASSUME '(' expr ')' ';' { ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $3)); } | + TOK_COVER '(' expr ')' ';' { + ast_stack.back()->children.push_back(new AstNode(AST_COVER, $3)); + } | TOK_RESTRICT '(' expr ')' ';' { if (norestrict_mode) delete $3; @@ -1014,6 +1017,9 @@ assert_property: TOK_ASSUME TOK_PROPERTY '(' expr ')' ';' { ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $4)); } | + TOK_COVER TOK_PROPERTY '(' expr ')' ';' { + ast_stack.back()->children.push_back(new AstNode(AST_COVER, $4)); + } | TOK_RESTRICT TOK_PROPERTY '(' expr ')' ';' { if (norestrict_mode) delete $4; |