diff options
Diffstat (limited to 'frontends/ast/ast.cc')
| -rw-r--r-- | frontends/ast/ast.cc | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index 7d5295a6..0e65f1cb 100644 --- a/frontends/ast/ast.cc +++ b/frontends/ast/ast.cc @@ -171,6 +171,7 @@ AstNode::AstNode(AstNodeType type, AstNode *child1, AstNode *child2) is_output = false; is_reg = false; is_signed = false; + is_string = false; range_valid = false; port_id = 0; range_left = -1; @@ -591,6 +592,8 @@ bool AstNode::operator==(const AstNode &other) const return false; if (is_signed != other.is_signed) return false; + if (is_string != other.is_string) + return false; if (range_valid != other.range_valid) return false; if (port_id != other.port_id) @@ -658,6 +661,14 @@ AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signe return node; } +// create an AST node for a constant (using a string in bit vector form as value) +AstNode *AstNode::mkconst_str(const std::vector<RTLIL::State> &v) +{ + AstNode *node = mkconst_str(RTLIL::Const(v).decode_string()); + log_assert(node->bits == v); + return node; +} + // create an AST node for a constant (using a string as value) AstNode *AstNode::mkconst_str(const std::string &str) { @@ -671,6 +682,7 @@ AstNode *AstNode::mkconst_str(const std::string &str) } } AstNode *node = AstNode::mkconst_bits(data, false); + node->is_string = true; node->str = str; return node; } @@ -702,7 +714,7 @@ RTLIL::Const AstNode::asAttrConst() RTLIL::Const val; val.bits = bits; - if (!str.empty()) { + if (is_string) { val.flags |= RTLIL::CONST_FLAG_STRING; log_assert(val.decode_string() == str); } |