mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-07-24 05:08:56 +00:00
Code Activity

Added basic support for $expect cells

Browse source
This commit is contained in:
Clifford Wolf 2016-07-13 16:56:17 +02:00
parent b3155af5f6
commit 721f1f5ecf
16 changed files with 82 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

12
frontends/ast/simplify.cc
View file

@ -1348,10 +1348,10 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
skip_dynamic_range_lvalue_expansion:;
if (stage > 1 && (type == AST_ASSERT || type == AST_ASSUME) && current_block != NULL)
if (stage > 1 && (type == AST_ASSERT || type == AST_ASSUME || type == AST_EXPECT) && current_block != NULL)
{
std::stringstream sstr;
sstr << "$assert$" << filename << ":" << linenum << "$" << (autoidx++);
sstr << "$formal$" << filename << ":" << linenum << "$" << (autoidx++);
std::string id_check = sstr.str() + "_CHECK", id_en = sstr.str() + "_EN";
AstNode *wire_check = new AstNode(AST_WIRE);
@ -1363,8 +1363,10 @@ skip_dynamic_range_lvalue_expansion:;
AstNode *wire_en = new AstNode(AST_WIRE);
wire_en->str = id_en;
current_ast_mod->children.push_back(wire_en);
current_ast_mod->children.push_back(new AstNode(AST_INITIAL, new AstNode(AST_BLOCK, new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), AstNode::mkconst_int(0, false, 1)))));
current_ast_mod->children.back()->children[0]->children[0]->children[0]->str = id_en;
if (current_always == nullptr || current_always->type != AST_INITIAL) {
current_ast_mod->children.push_back(new AstNode(AST_INITIAL, new AstNode(AST_BLOCK, new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), AstNode::mkconst_int(0, false, 1)))));
current_ast_mod->children.back()->children[0]->children[0]->children[0]->str = id_en;
}
current_scope[wire_en->str] = wire_en;
while (wire_en->simplify(true, false, false, 1, -1, false, false)) { }
@ -1403,7 +1405,7 @@ skip_dynamic_range_lvalue_expansion:;
goto apply_newNode;
}
if (stage > 1 && (type == AST_ASSERT || type == AST_ASSUME) && children.size() == 1)
if (stage > 1 && (type == AST_ASSERT || type == AST_ASSUME || type == AST_EXPECT) && children.size() == 1)
{
children.push_back(mkconst_int(1, false, 1));
did_something = true;