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Re: PR c/8068

On Fri, Feb 14, 2003 at 11:36:04PM +0100, Arend Bayer wrote:
> +++ gcc/fold-const.c	14 Feb 2003 22:08:53 -0000
> @@ -4693,6 +4693,14 @@ extract_muldiv (t, c, code, wide_type)
>  	  && integer_zerop (const_binop (TRUNC_MOD_EXPR, op1, c, 0)))
>  	return omit_one_operand (type, integer_zero_node, op0);
> 
> +      /* We sort op0 and op1 so that op0 is the easier one. */
> +      if (TREE_CODE(op1) == INTEGER_CST && TREE_CODE(op0) != INTEGER_CST)
> +        {
> +	  tree tmp = op0;
> +	  op0 = op1;
> +	  op1 = tmp;
> +	}
> +
>        /* ... fall through ...  */
> 
>      case TRUNC_DIV_EXPR:  case CEIL_DIV_EXPR:  case FLOOR_DIV_EXPR:

The problem also occurs for TRUNC_DIV_EXPR, etc.
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