re PR rtl-optimization/32636 (25_algorithms/search_n/iterator.cc: miscompiled on hppa2.0w-hp-hpux11.11)

	PR rtl-optimization/32636
	* df-scan.c (df_get_entry_block_def_set): Set struct_value_rtx
	regno in entry_block_defs even if HAVE_prologue && epilogue_completed.

From-SVN: r130907