Re: [avr-gcc-list] reproducable gcc error: unrecognizable insn

[Denis Chertykov]

address@hidden (Joerg Wunsch) writes:

> Denis Chertykov <address@hidden> wrote:
> 
> > This is the fix. (FSF CVS tree already have this fix)
> > Apply the following patch to gcc/config/avr/avr.md and recompile
> > avr-gcc.
> 
> Unfortunately, gcc doesn't compile anymore for me when this fix has
> been applied, regardless whether i use the source from current CVS
> (which needs a hack in gcc/output.h in order to compile at all, as has
> been discussed here), or whether i apply the patch to the sources from
> 2002-09-01 which compiles cleanly without the patch.

The fix:

Index: avr.md
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/avr/avr.md,v
retrieving revision 1.36
diff -c -3 -p -r1.36 avr.md
*** avr.md      9 Sep 2002 18:20:45 -0000       1.36
--- avr.md      10 Sep 2002 15:41:20 -0000
***************
*** 360,369 ****
  
    if (GET_CODE (operands[2]) != CONST_INT)
      FAIL;
!   cnt8 = byte_immediate_operand (operands[1], GET_MODE (operands[1]));
    mode = cnt8 ? QImode : HImode;
!   operands[1] = copy_to_mode_reg (mode,
!                                   gen_int_mode (INTVAL (operands[1]), mode));
    addr0 = copy_to_mode_reg (Pmode, XEXP (operands[0], 0));
    addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0));
  
--- 360,370 ----
  
    if (GET_CODE (operands[2]) != CONST_INT)
      FAIL;
!   cnt8 = byte_immediate_operand (operands[2], GET_MODE (operands[2]));
    mode = cnt8 ? QImode : HImode;
!   operands[2] = copy_to_mode_reg (mode,
!                                   gen_int_mode (INTVAL (operands[2]), mode));
!   operands[4] = operands[2];
    addr0 = copy_to_mode_reg (Pmode, XEXP (operands[0], 0));
    addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0));
  

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