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Do not generate "reg assigned in a continuous assignment" warnings for "rand reg"

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2018-11-01 15:25:24 +01:00
parent b6781c6f4b
commit d86ea6badd
1 changed files with 15 additions and 2 deletions
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17
frontends/ast/simplify.cc
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@ -450,8 +450,21 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
children[0]->id2ast->is_reg = true; // if logic type is used in a block asignment
if ((type == AST_ASSIGN_LE || type == AST_ASSIGN_EQ) && !children[0]->id2ast->is_reg)
log_warning("wire '%s' is assigned in a block at %s:%d.\n", children[0]->str.c_str(), filename.c_str(), linenum);
if (type == AST_ASSIGN && children[0]->id2ast->is_reg)
log_warning("reg '%s' is assigned in a continuous assignment at %s:%d.\n", children[0]->str.c_str(), filename.c_str(), linenum);
if (type == AST_ASSIGN && children[0]->id2ast->is_reg) {
bool is_rand_reg = false;
if (children[1]->type == AST_FCALL) {
if (children[1]->str == "\\$anyconst")
is_rand_reg = true;
if (children[1]->str == "\\$anyseq")
is_rand_reg = true;
if (children[1]->str == "\\$allconst")
is_rand_reg = true;
if (children[1]->str == "\\$allseq")
is_rand_reg = true;
}
if (!is_rand_reg)
log_warning("reg '%s' is assigned in a continuous assignment at %s:%d.\n", children[0]->str.c_str(), filename.c_str(), linenum);
}
children[0]->was_checked = true;
}
break;