msp430.c (msp430_expand_helper): Support expansion of calls to __mspabi_mpy* functions.

msp430.c (msp430_expand_helper): Support expansion of calls to __mspabi_mpy* functions.

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

	* config/msp430/msp430.c (msp430_expand_helper): Support expansion of
	calls to __mspabi_mpy* functions.
	* config/msp430/msp430.md (mulhisi3): New define_expand.
	(umulhisi3): New define_expand.
	(*mulhisi3_inline): Use old mulhisi3 define_insn.
	(*umulhisi3_inline): Use old umulhisi3 define_insn.

From-SVN: r277624