Add Expand Whens test

1 files changed, 47 insertions, 0 deletions

diff --git a/src/test/resources/passes/ExpandWhens/ExpandWhens.fir b/src/test/resources/passes/ExpandWhens/ExpandWhens.fir
new file mode 100644
index 00000000..021533e0
--- /dev/null
+++ b/src/test/resources/passes/ExpandWhens/ExpandWhens.fir
@@ -0,0 +1,47 @@
+
+circuit ExpandWhens :
+  module ExpandWhens :
+    input clk : Clock
+    input reset : UInt<1>
+
+    node done = UInt(6)
+
+    reg x : UInt<16>, clk with :
+      reset => (reset, UInt(0))
+    x <= x
+
+    x <= UInt(2)
+
+    ; Tricky assignment only in else
+    when geq(x, UInt(1)) :
+    else :
+      x <= UInt(1)
+
+    when geq(x, UInt(2)) :
+      when lt(x, UInt(3)) :
+        x <= UInt(3)
+      else :
+        x <= UInt(4)
+
+    when reset :
+    else :
+      when geq(x, UInt(4)) :
+        x <= UInt(6)
+        when lt(x, UInt(5)) :
+          x <= UInt(5)
+
+    reg count : UInt<16>, clk with :
+      reset => (reset, UInt(0))
+    when neq(count, done) :
+      count <= add(count, UInt(1))
+
+    printf(clk, UInt(1), "count = %d, x = %d\n", count, x)
+
+    when not(reset) :
+      when neq(x, count) : 
+        printf(clk, UInt(1), "Assertion failed! x =/= count!\n")
+        stop(clk, UInt(1), 1)
+      when eq(x, done) :
+        stop(clk, UInt(1), 0)
+
+