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Added support for $stop system task

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This commit is contained in:
Clifford Wolf 2016-03-21 16:19:51 +01:00
parent ca8f8e30f2
commit 4f0d4899ce
1 changed files with 5 additions and 5 deletions
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10
frontends/ast/simplify.cc
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@ -174,8 +174,8 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
// deactivate all calls to non-synthesis system tasks
// note that $display and $finish are used for synthesis-time DRC so they're not in this list
if ((type == AST_FCALL || type == AST_TCALL) && (str == "$strobe" || str == "$monitor" || str == "$time" || str == "$stop" ||
// note that $display, $finish, and $stop are used for synthesis-time DRC so they're not in this list
if ((type == AST_FCALL || type == AST_TCALL) && (str == "$strobe" || str == "$monitor" || str == "$time" ||
str == "$dumpfile" || str == "$dumpvars" || str == "$dumpon" || str == "$dumpoff" || str == "$dumpall")) {
log_warning("Ignoring call to system %s %s at %s:%d.\n", type == AST_FCALL ? "function" : "task", str.c_str(), filename.c_str(), linenum);
delete_children();
@ -1698,12 +1698,12 @@ skip_dynamic_range_lvalue_expansion:;
if (type == AST_TCALL)
{
if (str == "$finish")
if (str == "$finish" || str == "$stop")
{
if (!current_always || current_always->type != AST_INITIAL)
log_error("System task `$finish' outside initial block is unsupported at %s:%d.\n", filename.c_str(), linenum);
log_error("System task `%s' outside initial block is unsupported at %s:%d.\n", str.c_str(), filename.c_str(), linenum);
log_error("System task `$finish' executed at %s:%d.\n", filename.c_str(), linenum);
log_error("System task `%s' executed at %s:%d.\n", str.c_str(), filename.c_str(), linenum);
}
if (str == "\\$readmemh" || str == "\\$readmemb")