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Added warning for use of 'z' constants in HDL

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This commit is contained in:
Clifford Wolf 2014-11-14 19:59:50 +01:00
parent 4e5350b409
commit 87333f3ae2
3 changed files with 14 additions and 6 deletions
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8
frontends/verilog/verilog_parser.y
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@ -1251,7 +1251,7 @@ basic_expr:
if ($4->substr(0, 1) != "'")
frontend_verilog_yyerror("Syntax error.");
AstNode *bits = $2;
AstNode *val = const2ast(*$4, case_type_stack.size() == 0 ? 0 : case_type_stack.back());
AstNode *val = const2ast(*$4, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), true);
if (val == NULL)
log_error("Value conversion failed: `%s'\n", $4->c_str());
$$ = new AstNode(AST_TO_BITS, bits, val);
@ -1262,7 +1262,7 @@ basic_expr:
frontend_verilog_yyerror("Syntax error.");
AstNode *bits = new AstNode(AST_IDENTIFIER);
bits->str = *$1;
AstNode *val = const2ast(*$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back());
AstNode *val = const2ast(*$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), true);
if (val == NULL)
log_error("Value conversion failed: `%s'\n", $2->c_str());
$$ = new AstNode(AST_TO_BITS, bits, val);
@ -1270,14 +1270,14 @@ basic_expr:
delete $2;
} |
TOK_CONST TOK_CONST {
$$ = const2ast(*$1 + *$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back());
$$ = const2ast(*$1 + *$2, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), true);
if ($$ == NULL || (*$2)[0] != '\'')
log_error("Value conversion failed: `%s%s'\n", $1->c_str(), $2->c_str());
delete $1;
delete $2;
} |
TOK_CONST {
$$ = const2ast(*$1, case_type_stack.size() == 0 ? 0 : case_type_stack.back());
$$ = const2ast(*$1, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), true);
if ($$ == NULL)
log_error("Value conversion failed: `%s'\n", $1->c_str());
delete $1;