re PR target/60991 ([avr] Stack corruption when using 24-bit integers __int24 or __memx pointers in large stack frame)

gcc/ChangeLog

	PR target/60991
	* config/avr/avr.c (avr_out_store_psi): Use correct constant
	to restore Y.

gcc/testsuite/ChangeLog

	PR target/60991
	* gcc.target/avr/pr60991.c: New testcase.

From-SVN: r210325