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-rw-r--r--frontends/ast/genrtlil.cc3
1 files changed, 3 insertions, 0 deletions
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc
index 25881d63..8ee46eb8 100644
--- a/frontends/ast/genrtlil.cc
+++ b/frontends/ast/genrtlil.cc
@@ -786,10 +786,12 @@ RTLIL::SigSpec AstNode::genRTLIL(int width_hint, bool sign_hint)
log_error("Signal `%s' with non-constant width at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
+ bool wire_upto = false;
if (range_left < range_right && (range_left != -1 || range_right != 0)) {
int tmp = range_left;
range_left = range_right;
range_right = tmp;
+ wire_upto = true;
}
RTLIL::Wire *wire = current_module->addWire(str, range_left - range_right + 1);
@@ -798,6 +800,7 @@ RTLIL::SigSpec AstNode::genRTLIL(int width_hint, bool sign_hint)
wire->port_id = port_id;
wire->port_input = is_input;
wire->port_output = is_output;
+ wire->upto = wire_upto;
for (auto &attr : attributes) {
if (attr.second->type != AST_CONSTANT)