[PATCH] Fix cfg around tablejumps after tree_expand_cfg (PR rtl-optimization/18861)

[Richard Henderson]

On Wed, Jan 05, 2005 at 11:51:40AM -0500, Jakub Jelinek wrote:
> 	PR rtl-optimization/18861
> 	* cfgbuild.c (BLOCK_USED_BY_TABLEJUMP): Define.
> 	(FULL_STATE): Define.
> 	(mark_tablejump_edge): New function.
> 	(purge_dead_tablejump_edges): New function.
> 	(find_bb_boundaries): Use it.

Ok, except,

> +  /* Some targets (eg, ARM) emit a conditional jump that also
> +     contains the out-of-range target.  Scan for these and
> +     add an edge if necessary.  */
> +  if ((tmp = single_set (insn)) != NULL
> +       && SET_DEST (tmp) == pc_rtx
> +       && GET_CODE (SET_SRC (tmp)) == IF_THEN_ELSE
> +       && GET_CODE (XEXP (SET_SRC (tmp), 2)) == LABEL_REF)
> +    mark_tablejump_edge (XEXP (XEXP (SET_SRC (tmp), 2), 0));

condjump_label?


r~