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Added read_verilog -norestrict -assume-asserts

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This commit is contained in:
Clifford Wolf 2016-08-26 23:35:27 +02:00
parent 17233b11e1
commit 1276c87a56
4 changed files with 40 additions and 5 deletions
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19
frontends/verilog/verilog_parser.y
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@ -58,6 +58,7 @@ namespace VERILOG_FRONTEND {
bool do_not_require_port_stubs;
bool default_nettype_wire;
bool sv_mode, formal_mode, lib_mode;
bool norestrict_mode, assume_asserts_mode;
std::istream *lexin;
}
YOSYS_NAMESPACE_END
@ -113,7 +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_PREDICT TOK_PROPERTY
%token TOK_RESTRICT TOK_PREDICT TOK_PROPERTY
%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
@ -995,22 +996,34 @@ opt_label:
assert:
TOK_ASSERT '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_ASSERT, $3));
ast_stack.back()->children.push_back(new AstNode(assume_asserts_mode ? AST_ASSUME : AST_ASSERT, $3));
} |
TOK_ASSUME '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $3));
} |
TOK_RESTRICT '(' expr ')' ';' {
if (norestrict_mode)
delete $3;
else
ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $3));
} |
TOK_PREDICT '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_PREDICT, $3));
};
assert_property:
TOK_ASSERT TOK_PROPERTY '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_ASSERT, $4));
ast_stack.back()->children.push_back(new AstNode(assume_asserts_mode ? AST_ASSUME : AST_ASSERT, $4));
} |
TOK_ASSUME TOK_PROPERTY '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $4));
} |
TOK_RESTRICT TOK_PROPERTY '(' expr ')' ';' {
if (norestrict_mode)
delete $4;
else
ast_stack.back()->children.push_back(new AstNode(AST_ASSUME, $4));
} |
TOK_PREDICT TOK_PROPERTY '(' expr ')' ';' {
ast_stack.back()->children.push_back(new AstNode(AST_PREDICT, $4));
};