| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8260776 | openjdk8u292 | Andrew Hughes | P4 | Resolved | Fixed | b01 |
When the superword optimization encounters a misaligned offset, it tries to align the loop induction variable so the memory access is aligned. So even though the aarch64 port only supports align vector memory accesses ( Matcher::misaligned_vectors_ok() return false), vector node can still get a misaligned offset which results in:
# Internal Error (/scratch/rwestrel/hs-comp/hotspot/src/cpu/aarch64/vm/assembler_aarch64.hpp:251), pid=3780, tid=3807
# guarantee(chk == -1 || chk == 0) failed: Field too big for insn
# Internal Error (/scratch/rwestrel/hs-comp/hotspot/src/cpu/aarch64/vm/assembler_aarch64.hpp:251), pid=3780, tid=3807
# guarantee(chk == -1 || chk == 0) failed: Field too big for insn
- backported by
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JDK-8260776 Aarch64: vector nodes need to support misaligned offset
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- Resolved
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- relates to
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JDK-8155653 TestVectorUnalignedOffset.java not pushed with 8155612
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- Resolved
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JDK-8257192 Integrate AArch64 JIT port into 8u
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- Resolved
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