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  1. JDK
  2. JDK-8362383

C2 compilation fails with assert(VM_Version::supports_3dnow_prefetch()) failed: must support

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      Fails with SDE emulating Intel(R) Goldmont CPU.

      sde64 -glm -- java -Xbatch -XX:+TieredCompilation -XX:AllocatePrefetchInstr=3 Test.java

      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/workspace/open/src/hotspot/cpu/x86/assembler_x86.cpp:5762), pid=446762, tid=446782
      # assert(VM_Version::supports_3dnow_prefetch()) failed: must support
      #
      # JRE version: Java(TM) SE Runtime Environment (26.0+7) (fastdebug build 26-ea+7-633)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 26-ea+7-633, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0x788070] Assembler::prefetchw(Address)+0x1f0
      #

      Current CompileTask:
      C2:17308 146 b 4 java.util.HashMap::putVal (300 bytes)

      Stack: [0x00007a4cc73f4000,0x00007a4cc74f4000], sp=0x00007a4cc74ef6e0, free space=1005k
      Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0x788070] Assembler::prefetchw(Address)+0x1f0 (assembler_x86.cpp:5762)
      V [libjvm.so+0x3c6e3b] prefetchAllocNode::emit(C2_MacroAssembler*, PhaseRegAlloc*) const+0x10b
      V [libjvm.so+0x17c1094] PhaseOutput::scratch_emit_size(Node const*)+0x4a4
      V [libjvm.so+0x17b8e2f] PhaseOutput::shorten_branches(unsigned int*)+0x35f
      V [libjvm.so+0x17cbf23] PhaseOutput::Output()+0xb23
      V [libjvm.so+0xb4ffb0] Compile::Code_Gen()+0xa20
      V [libjvm.so+0xb5542f] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x209f
      V [libjvm.so+0x97a437] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x467
      V [libjvm.so+0xb64698] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xb58
      V [libjvm.so+0xb65868] CompileBroker::compiler_thread_loop()+0x578
      V [libjvm.so+0x10bc88b] JavaThread::thread_main_inner()+0x13b
      V [libjvm.so+0x1b2eb26] Thread::call_run()+0xb6
      V [libjvm.so+0x179e698] thread_native_entry(Thread*)+0x128

            Unassigned Unassigned
            thartmann Tobias Hartmann
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              Created:
              Updated: