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  1. JDK
  2. JDK-8272968

AArch64: Remove redundant matching rules for commutative ops

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 18
    • Fix Version/s: 18
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b19
    • CPU:
      aarch64

      Description

      No need to add additional match rule for commutative op: mnegI, mnegL and smnegL, as MulL is commutative, matcher will create the rules automatically, see: matchrule_swap_commutative_op and count_commutative_op in formssel.cpp

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              Assignee:
              haosun Hao Sun
              Reporter:
              haosun Hao Sun
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                Updated:
                Resolved: