Useless jumps with nested if
hsaturn opened this issue · comments
Hello
Some useless jumps are generated with nested if.
Here is the smallest code I've found, but with large code, I saw a bunch of 7 useless jumps !!
var c;
if (c < 10) {
if (c < 5)
c = 5;
else
c = 10;
}
else
c = 23;The generated code is
0 jump 6 greaterThanEq c:1:4 10
1 jump 4 greaterThanEq c:1:4 5
2 set c:1:4 5
3 jump 5 always --> JUMP TO 5
4 set c:1:4 10
5 jump 7 always --> THEN JUMP TO 7 !
6 set c:1:4 23
7 endAs we can see, the jump at line 3 goes to line 5 wich jumps then to line 7.
I think this is easy to add a pass to optimize this, without having to remove a line (which could cause some issue with indirect jumps such as those made with @counter (arrays etc..))
Best regards, MLogJs is so great !
