#2957 Reusing old, wrong value

[Philipp Klaus Krause]

For the following code:

char test(char *p, int i, char c)
{
    p[0] = c;
    p[i] = 8;
    return p[0];
}

current SDCC 3.9.5 #11483 (I didn't check older versions) will always return c. I saw this bug for all ports I tried (mcs51, z80, stm8, hc08).

Apparently, the bug is introduced in a computeDataFlow (ebbi) call.

Giving this higher than default priority, since bad code is generated silently.

Philipp

[Philipp Klaus Krause]

In [r11485], I added a (currently disabled) test for this bug.

[Erik Petrich]

Fixed in [r13788]