re PR tree-optimization/71405 (ICE on valid C++ code at -Os and above on x86_64-linux-gnu: verify_gimple failed)

	PR tree-optimization/71405
	* tree-ssa.c (execute_update_addresses_taken): For clobber with
	incompatible type, build a new clobber with the right type instead
	of building a VIEW_CONVERT_EXPR around it.

	* g++.dg/torture/pr71405.C: New test.

From-SVN: r237091