[PATCH] D74334: [ARM,MVE] Add the vrev16q, vrev32q, vrev64q family.

[Simon Tatham via Phabricator via cfe-commits]

simon_tatham created this revision.
simon_tatham added reviewers: dmgreen, miyuki, MarkMurrayARM, ostannard.
Herald added subscribers: cfe-commits, kristof.beyls.
Herald added a project: clang.

These intrinsics just reorder the lanes of a vector, so the natural IR
representation is as a shufflevector operation. Existing LLVM codegen
already recognizes those particular shufflevectors and generates the
MVE VREV instruction.

This commit adds the unpredicated forms only.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D74334

Files:
  clang/include/clang/Basic/arm_mve.td
  clang/include/clang/Basic/arm_mve_defs.td
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/arm-mve-intrinsics/vrev.c

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