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Add "whitebox" attribute, add "read_verilog -wb"

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2019-04-18 17:42:12 +02:00
parent ea8ac0aaad
commit f4abc21d8a
23 changed files with 81 additions and 42 deletions
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10
frontends/verilog/verilog_parser.y
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@ -59,7 +59,7 @@ namespace VERILOG_FRONTEND {
std::vector<char> case_type_stack;
bool do_not_require_port_stubs;
bool default_nettype_wire;
bool sv_mode, formal_mode, lib_mode;
bool sv_mode, formal_mode, lib_mode, wb_mode;
bool noassert_mode, noassume_mode, norestrict_mode;
bool assume_asserts_mode, assert_assumes_mode;
bool current_wire_rand, current_wire_const;
@ -1906,7 +1906,7 @@ basic_expr:
if ($4->substr(0, 1) != "'")
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);
AstNode *val = const2ast(*$4, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode && !wb_mode);
if (val == NULL)
log_error("Value conversion failed: `%s'\n", $4->c_str());
$$ = new AstNode(AST_TO_BITS, bits, val);
@ -1917,7 +1917,7 @@ basic_expr:
frontend_verilog_yyerror("Cast operation must be applied on sized constants, e.g. <ID>\'d0, while %s is not a sized constant.", $2->c_str());
AstNode *bits = new AstNode(AST_IDENTIFIER);
bits->str = *$1;
AstNode *val = const2ast(*$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode);
AstNode *val = const2ast(*$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode && !wb_mode);
if (val == NULL)
log_error("Value conversion failed: `%s'\n", $2->c_str());
$$ = new AstNode(AST_TO_BITS, bits, val);
@ -1925,14 +1925,14 @@ basic_expr:
delete $2;
} |
TOK_CONSTVAL TOK_CONSTVAL {
$$ = const2ast(*$1 + *$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode);
$$ = const2ast(*$1 + *$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode && !wb_mode);
if ($$ == NULL || (*$2)[0] != '\'')
log_error("Value conversion failed: `%s%s'\n", $1->c_str(), $2->c_str());
delete $1;
delete $2;
} |
TOK_CONSTVAL {
$$ = const2ast(*$1, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode);
$$ = const2ast(*$1, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode && !wb_mode);
if ($$ == NULL)
log_error("Value conversion failed: `%s'\n", $1->c_str());
delete $1;