aboutsummaryrefslogtreecommitdiffstats
path: root/frontends/verilog
diff options
context:
space:
mode:
authorClifford Wolf <clifford@clifford.at>2018-09-23 10:32:54 +0200
committerJim Lawson <ucbjrl@berkeley.edu>2018-10-08 11:38:10 -0700
commite8431d1508ff28bf8983d7f2f1859060c9d9fdcd (patch)
treef7d7c63ef13ce3d9af9a87fdd86f3e95ffa89c19 /frontends/verilog
parenta9085ff4af005f59d22403047ea7b3e0e7453ffd (diff)
downloadyosys-e8431d1508ff28bf8983d7f2f1859060c9d9fdcd.tar.gz
yosys-e8431d1508ff28bf8983d7f2f1859060c9d9fdcd.tar.bz2
yosys-e8431d1508ff28bf8983d7f2f1859060c9d9fdcd.zip
Added support for ommited "parameter" in Verilog-2001 style parameter decl in SV mode
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'frontends/verilog')
-rw-r--r--frontends/verilog/verilog_parser.y12
1 files changed, 9 insertions, 3 deletions
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index 2389d7d31..63cf646e9 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -881,9 +881,15 @@ param_decl_list:
single_param_decl:
TOK_ID '=' expr {
- if (astbuf1 == nullptr)
- frontend_verilog_yyerror("syntax error");
- AstNode *node = astbuf1->clone();
+ AstNode *node;
+ if (astbuf1 == nullptr) {
+ if (!sv_mode)
+ frontend_verilog_yyerror("syntax error");
+ node = new AstNode(AST_PARAMETER);
+ node->children.push_back(AstNode::mkconst_int(0, true));
+ } else {
+ node = astbuf1->clone();
+ }
node->str = *$1;
delete node->children[0];
node->children[0] = $3;