[sdcc-devel] [ sdcc-Bugs-1512044 ] pic16: bad code for unitialized variable

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Bugs item #1512044, was opened at 2006-06-25 10:50
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Category: pic16 target
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Borut Razem (borutr)
Assigned to: Nobody/Anonymous (nobody)
Summary: pic16: bad code for unitialized variable

Initial Comment:
unsigned char ttt[] = {0xff, 1};

unsigned char test(void)
{
  unsigned char a, i;

//  a = 0;  /* uncomment this line to generate correct
code */

  for (i = 0; i < sizeof(ttt); i++) {
    a |= ttt[i];
  }
  return a;
}

The return value is 1, but is should be 0xff.
If the variable a is initialized, the result is correct.

This is a minimized code from the regression test
bug-971834.c.

$sdcc --version
SDCC :
mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08
2.5.6 #4244 (Jun 24 2006) (MINGW32)

sdcc -mpic16 -pp18f452 t.c


Borut

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