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  1. JDK
  2. JDK-8241911

AArch64: Fix a potential issue about register allocation effect rule in reduce_add2I

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    • Subcomponent:
    • Resolved In Build:
      b19
    • CPU:
      aarch64

      Description

      instruct reduce_add2I
        effect(TEMP tmp, TEMP tmp2);
        "addw $dst, $src1, $tmp\n\t"
        "addw $dst, $dst, $tmp2\t add reduction2I"

      dst may be same with tmp2. Then register conflict happens.

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            • Assignee:
              yzhang Yang Zhang
              Reporter:
              yzhang Yang Zhang
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