re PR target/53811 (ICE: in insn_default_length, at config/i386/i386.md:529 (unrecognizable insn) with -mcmodel=large)

	PR target/53811
	* config/i386/i386.c (x86_output_mi_thunk): Check if fnaddr satisfies
	sibcall_insn_operand.  Move it to a temporary register if not.

testsuite/ChangLog:

	PR target/53811
	* g++.dg/other/pr53811.C: New test.

From-SVN: r189218