[Tinycc-devel] tricky little bounds-checking bug

[Joe Soroka]

---------------------
char xyz[123];

void main(void)
{
    int i = 0;
    xyz[0] = !i;
}
--------------------

This comes from trying to get tcc to run itself with bounds-checking
turned on.  This is a reduced form of "init isid table" in
preprocess_new().

Looking at the disassembly, it seems that the '!' operator causes a
register to be stomped on.  Some other expressions do the same thing,
like "i || 1".

I've tried to fix it, but I'm kinda lost in the bounds-checking logic.
 Anyone have any ideas?