Improves test for jumps

bench/tests/op/beq.s

@@ -1,15 +1,54 @@
-# expected: 000001BC, 000002BC
+# expected: 000001BC, 000002BC, 000003BC, 00000AC, 00000AC
     .text
 _start:
+    li x5, 0x0
+    # case1: not equal -> should not jump -> write 0x1BC
     add x1, x0, 0x00A
     add x2, x0, 0x00B
-    beq x1, x2, finish # Should not jump
+    beq x1, x2, case1_skip
     add x31, x0, 0x1BC
+case1_skip:
 
+    # case2: equal -> should jump -> write 0x2BC
     add x1, x0, 0x1BC
     add x2, x0, 0x1BC
-    beq x1, x2, finish # Should jump to finish 
+    beq x1, x2, case2_target
     add x31, x0, 0x3BC
-
-finish: 
+case2_target:
     add x31, x0, 0x2BC
+
+back_label:
+    bne x5, x0, back_label_flagged
+    add x1, x0, 0x000
+    add x2, x0, 0x001
+    add x31, x0, 0x3BC
+    jal x0, back_label_cont
+back_label_flagged:
+    add x31, x0, 0x0BC
+    add x5, x0, 0x0
+    jal x0, after_backward
+back_label_cont:
+
+    # case3: zero equality -> should jump -> write 0x4BC
+    add x1, x0, 0x000
+    add x2, x0, 0x000
+    beq x1, x2, case3_target
+    add x31, x0, 0x5BC
+case3_target:
+
+    # set flag and branch backwards to test negative offset
+    add x5, x0, 0x1
+    add x1, x0, 0x002
+    add x2, x0, 0x001
+    beq x1, x2, back_label
+
+    # same-register: always equal -> should jump -> write 0x0AC
+    add x1, x0, 0x00A
+    beq x1, x1, same_reg_target
+    add x31, x0, 0x6BC
+same_reg_target:
+    add x31, x0, 0x0AC
+
+after_backward:
+    # final marker
+    add x31, x0, 0x0AC