Add tests

examples/ir4/struct.ir

@@ -0,0 +1,73 @@
+struct %t1 : { i8,  struct %t0, f64 }
+struct %t0 : { [4 x [5 x i32]] }
+
+fun unit @init (i32, i32, *[5 x i32]) {
+init:
+  bid: b0
+  allocations: 
+
+
+block b0:
+  j b2(0:i32)
+
+block b2:
+  %b2:p0:i32:i
+  %b2:i0:u1 = cmp lt %b2:p0:i32 %b0:p0:i32
+  br %b2:i0:u1, b3(), b5()
+
+block b3:
+  j b7(0:i32)
+
+block b5:
+  ret unit:unit
+
+block b7:
+  %b7:p0:i32:j
+  %b7:i0:u1 = cmp lt %b7:p0:i32 %b0:p1:i32
+  br %b7:i0:u1, b8(), b10()
+
+block b8:
+  %b8:i0:i64 = typecast %b2:p0:i32 to i64
+  %b8:i1:i64 = mul %b8:i0:i64 20:i64
+  %b8:i2:*[5 x i32] = getelementptr %b0:p2:*[5 x i32] offset %b8:i1:i64
+  %b8:i3:*i32 = getelementptr %b8:i2:*[5 x i32] offset 0:i32
+  %b8:i4:i64 = typecast %b7:p0:i32 to i64
+  %b8:i5:i64 = mul %b8:i4:i64 4:i64
+  %b8:i6:*i32 = getelementptr %b8:i3:*i32 offset %b8:i5:i64
+  %b8:i7:i32 = mul %b2:p0:i32 %b7:p0:i32
+  %b8:i8:unit = store %b8:i7:i32 %b8:i6:*i32
+  %b8:i9:i32 = add %b7:p0:i32 1:i32
+  j b7(%b8:i9:i32)
+
+block b10:
+  %b10:i0:i32 = add %b2:p0:i32 1:i32
+  j b2(%b10:i0:i32)
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0: struct %t1:temp
+    %l1: struct %t1:temp2
+
+block b0:
+  %b0:i0:*[4 x [5 x i32]] = getelementptr %l0:* struct %t1 offset 4:i64
+  %b0:i1:*[5 x i32] = getelementptr %b0:i0:*[4 x [5 x i32]] offset 0:i32
+  %b0:i2:unit = call @init:*[ret:unit params:(i32, i32, *[5 x i32])](4:i32, 5:i32, %b0:i1:*[5 x i32])
+  %b0:i3: struct %t1 = load %l0:* struct %t1
+  %b0:i4:unit = store %b0:i3: struct %t1 %l1:* struct %t1
+  %b0:i5:*[4 x [5 x i32]] = getelementptr %l1:* struct %t1 offset 4:i64
+  %b0:i6:*[5 x i32] = getelementptr %b0:i5:*[4 x [5 x i32]] offset 0:i32
+  %b0:i7:i64 = typecast 2:i32 to i64
+  %b0:i8:i64 = mul %b0:i7:i64 20:i64
+  %b0:i9:*[5 x i32] = getelementptr %b0:i6:*[5 x i32] offset %b0:i8:i64
+  %b0:i10:*i32 = getelementptr %b0:i9:*[5 x i32] offset 0:i32
+  %b0:i11:i64 = typecast 3:i32 to i64
+  %b0:i12:i64 = mul %b0:i11:i64 4:i64
+  %b0:i13:*i32 = getelementptr %b0:i10:*i32 offset %b0:i12:i64
+  %b0:i14:i32 = load %b0:i13:*i32
+  %b0:i15:u1 = cmp eq %b0:i14:i32 6:i32
+  %b0:i16:i32 = typecast %b0:i15:u1 to i32
+  ret %b0:i16:i32
+}