re PR rtl-optimization/57003 (gcc breaks -O2 optimization with Wine(64) - links/info/bisect of commits included)

	PR rtl-optimization/57003
	* regcprop.c (copyprop_hardreg_forward_1): If ksvd.ignore_set_reg,
	also check CALL_INSN_FUNCTION_USAGE for clobbers again after
	killing regs_invalidated_by_call.

From-SVN: r216026