re PR rtl-optimization/83030 (ICE in create_pseudo_cfg, at dwarf2cfi.c:2840)

re PR rtl-optimization/83030 (ICE in create_pseudo_cfg, at dwarf2cfi.c:2840)

	PR rtl-optimization/83030
	* doc/rtl.texi (Flags in an RTL Expression): Alphabetize, add entry
	for CROSSING_JUMP_P and mention usage of 'jump' for JUMP_INSNs.
	(Insns): Delete entry for REG_CROSSING_JUMP in register notes.
	* bb-reorder.c (update_crossing_jump_flags): Do not test whether the
	CROSSING_JUMP_P flag is already set before setting it.
	* cfgrtl.c (fixup_partition_crossing): Likewise.
	* reorg.c (relax_delay_slots): Do not consider a CROSSING_JUMP_P insn
	as useless.

From-SVN: r255083