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Allow $past, $stable, $rose, $fell in $global_clock blocks

This commit is contained in:
Clifford Wolf 2017-10-10 11:59:32 +02:00
parent adf1754729
commit caa78388cd
1 changed files with 5 additions and 1 deletions
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6
frontends/ast/simplify.cc
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@ -405,9 +405,13 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
current_always_clocked = false; current_always_clocked = false;
if (type == AST_ALWAYS) if (type == AST_ALWAYS)
for (auto child : children) for (auto child : children) {
if (child->type == AST_POSEDGE || child->type == AST_NEGEDGE) if (child->type == AST_POSEDGE || child->type == AST_NEGEDGE)
current_always_clocked = true; current_always_clocked = true;
if (child->type == AST_EDGE && GetSize(child->children) == 1 &&
child->children[0]->type == AST_IDENTIFIER && child->children[0]->str == "\\$global_clock")
current_always_clocked = true;
}
} }
int backup_width_hint = width_hint; int backup_width_hint = width_hint;