On Wed, Jul 17, 2002 at 05:47:20PM -0700, Zack Weinberg wrote:
> ===================================================================
> Index: rtl.h
> +++ rtl.h	18 Jul 2002 00:38:34 -0000
> @@ -876,8 +877,55 @@ extern const char * const note_insn_name
>     of LABEL_REFs that point at it, so unused labels can be deleted.  */
>  #define LABEL_NUSES(RTX) XCINT (RTX, 4, CODE_LABEL)
>  
> -/* Associate a name with a CODE_LABEL.  */
> -#define LABEL_ALTERNATE_NAME(RTX) XCSTR (RTX, 8, CODE_LABEL)
> +/* Labels carry a two-bit field composed of the ->jump and ->call
> +   bits.  This field indicates whether the label is an alternate
> +   entry point, and if so, what kind.  */
> +enum label_kind
> +{
> +  LABEL_NORMAL = 0,	/* ordinary label */
> +  LABEL_STATIC_ENTRY,	/* alternate entry point, not exported */
> +  LABEL_GLOBAL_ENTRY,	/* alternate entry point, exported */
> +  LABEL_WEAK_ENTRY	/* alternate entry point, exported as weak symbol */
> +};
> +
> +#if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION > 2007)
> +
> +/* Retrieve the kind of LABEL.  */
> +#define LABEL_KIND(LABEL) __extension__					\
> +({ rtx const _label = (LABEL);						\
> +   if (GET_CODE (_label) != CODE_LABEL)					\
> +     rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__,	\
> +			    __FUNCTION__);				\
> +   (enum label_kind) ((_label->jump << 1) & _label->call); })
                                             ^
Shouldn't this be `|'?

> +
> +/* Set the kind of LABEL.  */
> +#define SET_LABEL_KIND(LABEL, KIND) do {				\
> +   rtx _label = (LABEL);						\
> +   unsigned int _kind = (KIND);						\
> +   if (GET_CODE (_label) != CODE_LABEL)					\
> +     rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \
> +			    __FUNCTION__);				\
> +   _label->jump = ((kind >> 1) & 1);					\
> +   _label->call = (kind & 1);						\
> +} while (0)
> +
> +#else
> +
> +/* Retrieve the kind of LABEL.  */
> +#define LABEL_KIND(LABEL) \
> +   (enum label_kind) (((LABEL)->jump << 1) & (LABEL)->call); })
                                              ^
Likewise.

Matt