[avr-gcc-list] Broken warnings with gcc-3.3-20030127?

[Bernd Trog]

Hi,
I'm trying to inline a function with an asm() statment:

---------------------------------------------------------
#define PORTD 0x12

static inline void
write_byte( unsigned char adr, unsigned char data )
{
    asm("out %0, %1" : : "I" (adr), "r" (data));
}

void main(void)
{

  unsigned char i;
  
  for( i=0; i < 255;i++) { 
    write_byte( PORTD, i );
  }
}
---------------------------------------------------------
>avr-gcc test.c  -Os -Wall -c -g

test.c:6: warning: asm operand 0 probably doesn't match constraints
test.c: In function `write_byte':
test.c:6: warning: asm operand 0 probably doesn't match constraints

IMHO, the asm-code looks fine:
---------------------------------------------------------
        ldi r24,lo8(0)
.L7:    
        out 18, r24
        subi r24,lo8(-(1))
        cpi r24,lo8(-1)   
        brne .L7
---------------------------------------------------------


Is this a bug or a feature?


Bernd,
who knows that the rest of the world uses #defines...








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