[PATCH] D116734: [AArch64] Update addo and subo costs

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: fhahn, sdesmalen, david-arm, efriedma, t.p.northover.
Herald added subscribers: hiraditya, kristof.beyls.
dmgreen requested review of this revision.
Herald added a project: LLVM.

Similar to D116732 <https://reviews.llvm.org/D116732>, this adds basic sadd_with_overflow, uadd_with_overflow, ssub_with_overflow and usub_with_overflow costs for aarch64, which are usually quite efficiently lowered.


https://reviews.llvm.org/D116734

Files:
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/AArch64/arith-overflow.ll
  llvm/test/Analysis/CostModel/AArch64/arith-ssat.ll
  llvm/test/Analysis/CostModel/AArch64/arith-usat.ll
  llvm/test/Transforms/LoopVectorize/AArch64/intrinsiccost.ll

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