re PR middle-end/42224 (32bit pointers to 32bit pointers abort on 64bit VMS and S390X)

re PR middle-end/42224 (32bit pointers to 32bit pointers abort on 64bit VMS and S390X)

gcc/
	PR middle-end/42224
	* tree.h (int_or_pointer_precision): Remove.
	* tree.c (int_or_pointer_precision): Remove.
	(integer_pow2p): Use TYPE_PRECISION instead.
	(tree_log2): Likewise.
	(tree_floor_log2): Likewise.
	(signed_or_unsigned_type_for): Likewise.
	* fold-const.c (fit_double_type): Likewise.
	* varasm.c (initializer_constant_valid_p): Likewise.

gcc/testsuite/
	PR middle-end/42224
	* gcc.target/s390/pr42224.c: New test.

From-SVN: r154908