re PR rtl-optimization/55010 (Internal consistency failure : invalid rtl sharing found in the insn)

	PR rtl-optimization/55010
	* cse.c (fold_rtx) <RTX_COMPARE>: Call copy_rtx on folded_arg{0,1}
	before passing it to simplify_relational_operation.

	* gcc.dg/pr55010.c: New test.

From-SVN: r192760