* rtl.def (CODE_LABEL): Remove slot 8.
* rtl.h (struct rtx_def): Document new uses of jump and call fields.
(LABEL_ALTERNATE_NAME): Delete.
(LABEL_KIND, SET_LABEL_KIND, LABEL_ALT_ENTRY_P): New.
* defaults.h: Remove default for ASM_OUTPUT_ALTERNATE_LABEL_NAME.
* final.c (output_alternate_entry_point): New.
(final_scan_insn): Use it instead of
ASM_OUTPUT_ALTERNATE_LABEL_NAME. Do not consider possibility
of a case label being an alternate entry point.
* cfgbuild.c (make_edges, find_bb_boundaries): Use LABEL_ALT_ENTRY_P.
* emit-rtl.c (gen_label_rtx): Adjust call to gen_rtx_CODE_LABEL.
Do not clear LABEL_NUSES (unnecessary) or LABEL_ALTERNATE_NAME
(field deleted).
* print-rtl.c, ra-debug.c: Update code to output CODE_LABELs.
* doc/rtl.texi: Document LABEL_KIND, SET_LABEL_KIND, and
LABEL_ALT_ENTRY_P; not LABEL_ALTERNATE_NAME.
* doc/tm.texi: Delete documentation of
ASM_OUTPUT_ALTERNATE_LABEL_NAME.
From-SVN: r55597
