re PR target/70123 (Miscompilation of cfitsio testcase on s390x-linux starting with...

re PR target/70123 (Miscompilation of cfitsio testcase on s390x-linux starting with r222144)

	PR target/70123
	* lra-remat.c (operand_to_remat): Disallow hard regs in the value t
	be rematerialized.
	(reg_overlap_for_remat_p): Renamed from input_regno_present_p.
	Arguments swapped.  All callers changed.  Take reg_renumber into
	account, and Calculate and compare register ranges for hard regs.

	PR target/70123
	* gcc.dg/torture/pr70123.c: New test.

From-SVN: r234152