Prepare for Spring 2025.

examples/ir2/lost_copy.ir

@@ -0,0 +1,29 @@
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:i32:i
+    %l1:i32:result
+
+block b0:
+  %b0:i0:unit = nop
+  %b0:i1:unit = nop
+  j b1(0:i32, 0:i32)
+
+block b1:
+  %b1:p0:i32:i
+  %b1:p1:i32:result
+  %b1:i0:unit = nop
+  %b1:i1:unit = nop
+  %b1:i2:unit = nop
+  %b1:i3:i32 = add %b1:p0:i32 1:i32
+  %b1:i4:unit = nop
+  %b1:i5:unit = nop
+  %b1:i6:u1 = cmp lt %b1:i3:i32 4:i32
+  br %b1:i6:u1, b1(%b1:i3:i32, %b1:p0:i32), b3()
+
+block b3:
+  %b3:i0:unit = nop
+  ret %b1:p0:i32
+}