On Thu, Jul 16, 2026 at 11:28:14AM +0530, jeevitha wrote: > Hi All, > > The following patch has been bootstrapped and regtested on powerpc64le-linux. > > Add move support for the new TDOmode opaque type used to represent > 1024-bit Dense Math Registers that may be supported by future Power > processors. > > Implement the movtdo pattern to support moves between memory, VSX > registers, and Dense Math Registers. Memory moves and VSX > register-to-register moves are handled by the generic multi-register > splitter. Dense Math Register-to-Register moves use dmmr, while moves > between VSX and Dense Math Registers are expanded using dm_insert1024 > and dm_extract512. > > 2026-07-14 Jeevitha Palanisamy <[email protected]> > > gcc/ > * config/rs6000/mma.md (UNSPEC_DMF_EXTRACT512): New unspec. > (dm_extract512): New insn. > (movtdo): New expander. > (*movtdo): New insn_and_split to support TDOmode moves between > memory, VSX registers, and Dense Math Registers. > * config/rs6000/rs6000.cc (rs6000_emit_move): Diagnose constant > assignments to TDOmode objects. > (rs6000_split_multireg_move): Handle TDOmode when splitting > multi-register moves.
All of these patches are cleared to be back ported to the GCC 16 branch after a short delay to make sure the master branch was not broken, given they only modify PowerPC specific files or documentation files. -- Michael Meissner, IBM PO Box 98, Ayer, Massachusetts, USA, 01432 email: [email protected]
