msp430.c (msp430_check_index_not_high_mem): New.

msp430.c (msp430_check_index_not_high_mem): New.

gcc/ChangeLog:

2019-10-30  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.c (msp430_check_index_not_high_mem): New.
	(msp430_check_plus_not_high_mem): New.
	(msp430_op_not_in_high_mem): Use new functions to check if the operand
	might be in low memory.
	Indicate that a 16-bit absolute address is in lower memory.

gcc/testsuite/ChangeLog:

2019-10-30  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* gcc.target/msp430/mlarge-use-430-insn.c: New test.

From-SVN: r277623