PowerPC update comments for the MMA instruction name changes.
The mnemonics for the pmxvf16ger*, pmxvf32ger*,pmxvf64ger*, pmxvi4ger8*, pmxvi8ger4*, and pmxvi16ger2* instructions were officially changed to pmdmxbf16ger*, pmdmxvf32ger*, pmdmxvf64ger*, pmdmxvi4ger8*, pmdmxvi8ger4*, pmdmxvi16ger* respectively. The old mnemonics are still supported by the assembler as extended mnemonics. The disassembler generates the new mnemonics. The name changes occurred in commit: commit bb98553c Author: Peter Bergner <bergner@linux.ibm.com> Date: Sat Oct 8 16:19:51 2022 -0500 PowerPC: Add support for RFC02658 - MMA+ Outer-Product Instructions gas/ * config/tc-ppc.c (md_assemble): Only check for prefix opcodes. * testsuite/gas/ppc/rfc02658.s: New test. * testsuite/gas/ppc/rfc02658.d: Likewise. * testsuite/gas/ppc/ppc.exp: Run it. opcodes/ * ppc-opc.c (XMSK8, P_GERX4_MASK, P_GERX2_MASK, XX3GERX_MASK): New. (powerpc_opcodes): Add dmxvi8gerx4pp, dmxvi8gerx4, dmxvf16gerx2pp, dmxvf16gerx2, dmxvbf16gerx2pp, dmxvf16gerx2np, dmxvbf16gerx2, dmxvi8gerx4spp, dmxvbf16gerx2np, dmxvf16gerx2pn, dmxvbf16gerx2pn, dmxvf16gerx2nn, dmxvbf16gerx2nn, pmdmxvi8gerx4pp, pmdmxvi8gerx4, pmdmxvf16gerx2pp, pmdmxvf16gerx2, pmdmxvbf16gerx2pp, pmdmxvf16gerx2np, pmdmxvbf16gerx2, pmdmxvi8gerx4spp, pmdmxvbf16gerx2np, pmdmxvf16gerx2pn, pmdmxvbf16gerx2pn, pmdmxvf16gerx2nn, pmdmxvbf16gerx2nn. This patch updates the comments in the various gdb files to reflect the name changes. There are no functional changes made by this patch. The older instruction names are still used in the test gdb.reverse/ppc_record_test_isa_3_1.exp for backwards compatibility. Patch has been tested on Power 10 with no regressions.
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