Switch to DMF syntax and DMR for all MMA operations.

Switch to DMF syntax and DMR for all MMA operations.

2022-10-11   Michael Meissner  <meissner@linux.ibm.com>

gcc/

	* config/rs6000/mma.md (vvi4i4i8_dmf): New int attribute.
	(avvi4i4i8_dmf): Likewise.
	(vvi4i4i2_dmf): Likewise.
	(avvi4i4i2_dmf): Likewise.
	(vvi4i4_dmf): Likewise.
	(avvi4i4_dmf): Likewise.
	(pvi4i2_dmf): Likewise.
	(apvi4i2_dmf): Likewise.
	(vvi4i4i4_dmf): Likewise.
	(avvi4i4i4_dmf): Likewise.
	(movxo_dmf): Spell dmxxextfmdr512 correctly.
	(mma_assemble_acc_dmf): Likewise.
	(mma_disassemble_acc_dmf): Likewise.
	(mma_<acc>): Change from using fpr_reg_operand in expand to just
	register_operand.  Limit insn to just non-DMF case.
	(mma_xxsetaccz): Break into 2 insns, depending on non-DMF vs. DMF.
	(mma_xxsetaccz_p10): Rename from mma_xxsetaccz.
	(mma_xxsetaccz_dmf): Use normal UNSPEC for DMF, not UNSPEC_VOLATILE.
	(mma_<vv>): Add support for running on DMF systems, generating the DMF
	instruction and using the DMF accumulator.
	(mma_<avv>): Likewise.
	(mma_<pv>): Likewise.
	(mma_<apv>): Likewise.
	(mma_<vvi4i4i8>): Likewise.
	(mma_<avvi4i4i8>): Likewise.
	(mma_<vvi4i4i2>): Likewise.
	(mma_<avvi4i4i2>): Likewise.
	(mma_<vvi4i4>): Likewise.
	(mma_<avvi4i4): Likewise.
	(mma_<pvi4i2>): Likewise.
	(mma_<apvi4i2): Likewise.
	(mma_<vvi4i4i4>): Likewise.
	(mma_<avvi4i4i4>): Likewise.