tree-into-ssa.c (prepare_operand_for_rename): New argument is_use.

tree-into-ssa.c (prepare_operand_for_rename): New argument is_use.

	* tree-into-ssa.c (prepare_operand_for_rename): New argument is_use.
	If the operand is for a use, then strip away the SSA_NAME, do not
	strip away the SSA_NAME for a set.  Never call release_ssa_name.
	(mark_def_sites): Appropriately pass additional argument to
	prepare_operand_for_rename.  If a VDEF_RESULT is not an SSA_NAME,
	then set the VDEF_RESULT to the VDEF_OP.
	(set_def_block): Strip away any SSA_NAME to get to the real
	underlying variable.

From-SVN: r82035