Prepare for Spring 2025.

examples/ir0/lost_copy.ir

@@ -0,0 +1,33 @@
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:i32:i
+    %l1:i32:result
+
+block b0:
+  %b0:i0:unit = store 0:i32 %l0:i32*
+  %b0:i1:unit = store 0:i32 %l1:i32*
+  j b1()
+
+block b1:
+  %b1:i0:i32 = load %l0:i32*
+  %b1:i1:unit = store %b1:i0:i32 %l1:i32*
+  %b1:i2:i32 = load %l0:i32*
+  %b1:i3:i32 = add %b1:i2:i32 1:i32
+  %b1:i4:unit = store %b1:i3:i32 %l0:i32*
+  j b2()
+
+block b2:
+  %b2:i0:i32 = load %l0:i32*
+  %b2:i1:u1 = cmp lt %b2:i0:i32 4:i32
+  br %b2:i1:u1, b1(), b3()
+
+block b3:
+  %b3:i0:i32 = load %l1:i32*
+  ret %b3:i0:i32
+
+block b4:
+  ret 0:i32
+}