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-rw-r--r--tests/various/bug2014.ys12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/various/bug2014.ys b/tests/various/bug2014.ys
new file mode 100644
index 000000000..10131fc43
--- /dev/null
+++ b/tests/various/bug2014.ys
@@ -0,0 +1,12 @@
+read_verilog <<EOT
+module test (
+ input signed [1:0] n,
+ output [3:0] dout
+);
+ assign dout = n + 4'sd 4;
+endmodule
+EOT
+
+alumacc
+select -assert-count 1 t:$alu
+equiv_opt -assert opt -fine