[PATCH] D102353: [AArch64] Lower fpto*i.sat intrinsics.

[Jacob Bramley via Phabricator via llvm-commits]

jbramley created this revision.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
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AArch64's fctv* instructions implement the saturating behaviour that the
fpto*i.sat intrinsics require, in cases where the destination width
matches the saturation width. Lowering them removes a lot of unnecessary
generated code.

Only scalar lowerings are supported for now.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102353

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/fptosi-sat-scalar.ll
  llvm/test/CodeGen/AArch64/fptosi-sat-vector.ll
  llvm/test/CodeGen/AArch64/fptoui-sat-scalar.ll
  llvm/test/CodeGen/AArch64/fptoui-sat-vector.ll
  llvm/test/CodeGen/AArch64/round-fptosi-sat-scalar.ll
  llvm/test/CodeGen/AArch64/round-fptoui-sat-scalar.ll

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