src/cpu/x86/vm/assembler_x86.cpp

*** 2321,2330 ****
--- 2321,2339 ----
    int encode = vex_prefix_and_encode(src1->encoding(), 0, src2->encoding(), VEX_SIMD_NONE, VEX_OPCODE_0F, &attributes);
    emit_int8((unsigned char)0x98);
    emit_int8((unsigned char)(0xC0 | encode));
  }
  
+ // This instruction produces ZF or CF flags
+ void Assembler::ktestql(KRegister src1, KRegister src2) {
+   assert(VM_Version::supports_avx512bw(), "");
+   InstructionAttr attributes(AVX_128bit, /* rex_w */ true, /* legacy_mode */ true, /* no_mask_reg */ true, /* uses_vl */ false);
+   int encode = vex_prefix_and_encode(src1->encoding(), 0, src2->encoding(), VEX_SIMD_NONE, VEX_OPCODE_0F, &attributes);
+   emit_int8((unsigned char)0x99);
+   emit_int8((unsigned char)(0xC0 | encode));
+ }
+ 
  void Assembler::movb(Address dst, int imm8) {
    InstructionMark im(this);
     prefix(dst);
    emit_int8((unsigned char)0xC6);
    emit_operand(rax, dst, 1);
*** 2489,2498 ****
--- 2498,2521 ----
    vex_prefix(dst, 0, src->encoding(), (Assembler::VexSimdPrefix)prefix, VEX_OPCODE_0F, &attributes);
    emit_int8(0x7F);
    emit_operand(src, dst);
  }
  
+ void Assembler::evmovdqub(KRegister mask, bool zeroing, XMMRegister dst, Address src, int vector_len) {
+   assert(VM_Version::supports_avx512vlbw(), "");
+   assert(is_programmed_mask_reg(), "");
+   InstructionMark im(this);
+   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ _legacy_mode_bw, /* no_mask_reg */ false, /* uses_vl */ true);
+   attributes.set_address_attributes(/* tuple_type */ EVEX_FVM, /* input_size_in_bits */ EVEX_NObit);
+   attributes.set_embedded_opmask_register_specifier(mask);
+   if (zeroing) attributes.set_is_clear_context();
+   attributes.set_is_evex_instruction();
+   vex_prefix(src, 0, dst->encoding(), VEX_SIMD_F2, VEX_OPCODE_0F, &attributes);
+   emit_int8(0x6F);
+   emit_operand(dst, src);
+ }
+ 
  void Assembler::evmovdquw(XMMRegister dst, XMMRegister src, int vector_len) {
    assert(VM_Version::supports_evex(), "");
    InstructionAttr attributes(vector_len, /* vex_w */ true, /* legacy_mode */ _legacy_mode_bw, /* no_mask_reg */ true, /* uses_vl */ true);
    attributes.set_is_evex_instruction();
    int prefix = (_legacy_mode_bw) ? VEX_SIMD_F2 : VEX_SIMD_F3;
*** 3273,3282 ****
--- 3296,3322 ----
    vex_prefix(src, nds->encoding(), dst_enc, VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
    emit_int8(0x74);
    emit_operand(as_Register(dst_enc), src);
  }
  
+ void Assembler::evpcmpeqb(KRegister mask, bool zeroing, KRegister kdst, XMMRegister nds, Address src, int vector_len) {
+   bool no_reg_mask = (mask == NULL  && zeroing == false) ? true : false;
+   assert(VM_Version::supports_avx512vlbw(), "");
+   assert(is_programmed_mask_reg(), "");
+   InstructionMark im(this);
+   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ false, no_reg_mask, /* uses_vl */ false);
+   attributes.set_address_attributes(/* tuple_type */ EVEX_FVM, /* input_size_in_bits */ EVEX_NObit);
+   if (!no_reg_mask) {
+     attributes.set_embedded_opmask_register_specifier(mask);
+     if (zeroing) attributes.set_is_clear_context();
+   }
+   attributes.set_is_evex_instruction();
+   vex_prefix(src, nds->encoding(), kdst->encoding(), VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
+   emit_int8(0x74);
+   emit_operand(as_Register(kdst->encoding()), src);
+ }
+ 
  // In this context, the dst vector contains the components that are equal, non equal components are zeroed in dst
  void Assembler::pcmpeqw(XMMRegister dst, XMMRegister src) {
    assert(VM_Version::supports_sse2(), "");
    InstructionAttr attributes(AVX_128bit, /* rex_w */ false, /* legacy_mode */ true, /* no_mask_reg */ false, /* uses_vl */ false);
    int encode = simd_prefix_and_encode(dst, dst, src, VEX_SIMD_66, VEX_OPCODE_0F, &attributes);