Verilog: test for reduction operators

Author: kroening

regression/verilog/expressions/reduction1.desc

@@ -0,0 +1,7 @@
+CORE
+reduction1.v
+--bound 0
+^EXIT=0$
+^SIGNAL=0$
+--
+^warning: ignoring

regression/verilog/expressions/reduction1.v

@@ -0,0 +1,31 @@
+module main(input [31:0] in);
+
+  // reduction and
+  always assert reduction_and1:
+    &3'b111 == 1 && &3'b101 == 0;
+
+  // reduction nand
+  always assert reduction_nand1:
+    ~&in == !(&in);
+
+  // reduction or
+  always assert reduction_or1:
+    |3'b000 == 0 && |3'b101 == 1;
+
+  // reduction nor
+  always assert reduction_nor1:
+    ~|in == !(|in);
+
+  // reduction xor
+  always assert reduction_xor1:
+    ^3'b000 == 0 && ^3'b111 == 1;
+
+  // reduction xnor, variant 1
+  always assert reduction_xnor1:
+    ~^in == !(^in);
+
+  // reduction xnor, variant 2
+  always assert reduction_xnor2:
+    ^~in == !(^in);
+
+endmodule