[PATCH] D81850: [AArch64][SVE] NFC: Choose consistent naming for predicated SDAG nodes

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen created this revision.
sdesmalen added reviewers: paulwalker-arm, cameron.mcinally, eli.friedman, dancgr.
Herald added subscribers: danielkiss, psnobl, rkruppe, hiraditya, kristof.beyls, tschuett.
Herald added a reviewer: efriedma.
Herald added a project: LLVM.

This patch proposes a naming convention for operations that take
a general predicate (and are thus predicated) that specifies
what happens to the false lanes.

Currently the _PRED suffix is used, which doesn't really say much other
than that it takes a predicate. In some instances this means it has
merging predication and in other cases it means zeroing-predication.

This patch should clear up that confusion and also proposes a naming
convention for two other kinds of predication that are currently
not used yet; 'undef' (false lanes are explicitly left unspecified)
and 'passthru' (a passthru vector is explicitly merged into the false
lanes).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D81850

Files:
  llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
  llvm/lib/Target/AArch64/SVEInstrFormats.td

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