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-rw-r--r--tests/simple/undef_eqx_nex.v11
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/simple/undef_eqx_nex.v b/tests/simple/undef_eqx_nex.v
new file mode 100644
index 00000000..63912a2f
--- /dev/null
+++ b/tests/simple/undef_eqx_nex.v
@@ -0,0 +1,11 @@
+module test(y);
+output [7:0] y;
+assign y[0] = 0/0;
+assign y[1] = 0/1;
+assign y[2] = 0/0 == 32'bx;
+assign y[3] = 0/0 != 32'bx;
+assign y[4] = 0/0 === 32'bx;
+assign y[5] = 0/0 !== 32'bx;
+assign y[6] = 0/1 === 32'bx;
+assign y[7] = 0/1 !== 32'bx;
+endmodule