[PATCH] D103082: [AArch64][SVE] Optimize svbool dupq ACLE intrinsic to fixed predicate patterns

[Bradley Smith via Phabricator via cfe-commits]

bsmith created this revision.
bsmith added reviewers: paulwalker-arm, peterwaller-arm, joechrisellis, sdesmalen.
Herald added subscribers: psnobl, hiraditya, kristof.beyls, tschuett.
Herald added a reviewer: efriedma.
bsmith requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

This patch introduces a new dupq LLVM intrinsic which is emitted upon
encountering the svbool dupq ACLE intrinsics, instead of expanding them
directly.

This allows us to defer the expansion of said intrinsic until much
later when we can reasonably optimize to fixed predicates using ptrue.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103082

Files:
  clang/include/clang/Basic/arm_sve.td
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dupq.c
  llvm/include/llvm/IR/IntrinsicsAArch64.td
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/test/CodeGen/AArch64/sve-intrinsics-dupq.ll
  llvm/test/Transforms/InstCombine/AArch64/sve-intrinsic-opts-dupq.ll

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