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  1. JDK
  2. JDK-8154537

AArch64: some integer rotate instructions are never emitted

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Details

    • Bug
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 9
    • 9
    • hotspot
    • None
    • b120
    • aarch64

    Backports

      Description

        (src >>> shift) | (src << (32 - shift)) and (src >>> shift) | (src << (0 - shift)) with src an int have some support in the aarch64.ad ad file: rorI_rReg_Var_C_32 and rorI_rReg_Var_C0 but their definitions is broken and never match any ideal graph subtree.

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                roland Roland Westrelin
                roland Roland Westrelin
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                  Created:
                  Updated:
                  Resolved: