JDK-8254814 : [Vector API] Fix an AVX512 crash after JDK-8223347
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 16
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-10-15
- Updated: 2020-10-25
- Resolved: 2020-10-16
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| JDK 16 |
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16 b21Fixed  |
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Description
# Reproduce Run jdk/incubator/vector/Short64VectorTests.java on AVX512 machines # Symptom ``` # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (/home/jdk/src/hotspot/cpu/x86/assembler_x86.cpp:8714), pid=96989, tid=97022 # assert(((dst_enc < 16 && nds_enc < 16 && src_enc < 16) || (!attributes->is_legacy_mode()))) failed: XMM register should be 0-15 # # JRE version: OpenJDK Runtime Environment (16.0+4) (fastdebug build 16-internal+4-adhoc..jdk) # Java VM: OpenJDK 64-Bit Server VM (fastdebug 16-internal+4-adhoc..jdk, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64) # Problematic frame: # V [libjvm.so+0x63259f] Assembler::vex_prefix_and_encode(int, int, int, Assembler::VexSimdPrefix, Assembler::VexOpcode, InstructionAttr*) [clone .constprop.1]+0x21f # ```
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