re PR rtl-optimization/15921 (gcc.c-torture/compile/920501-4.c fails on powerpc-*)

re PR rtl-optimization/15921 (gcc.c-torture/compile/920501-4.c fails on powerpc-*)

2004-07-12 Vladimir Makarov <vmakarov@redhat.com>

	PR rtl-optimization/15921
	* Makefile.in (global.o): Add recog.h.

	* global.c (recog.h): Add the include-clause.
	(bb_info): New member earlyclobber.
	(allocate_bb_info, free_bb_info): Initialize/finish the new
	member.
	(earlyclobber_regclass, earlyclobber_regclass_length): The new
	global variables.
	(check_earlyclobber, regclass_intersect,
	mark_reg_use_for_earlyclobber, mark_reg_use_for_earlyclobber_1):
	New functions.
	(calculate_local_reg_bb_info): Calculate value of earlyclobber.
	(make_accurate_live_analysis): Modify pavin.

From-SVN: r84569