8293245: x86_64: Extract Adler32 stub implementation into stubGenerator_x86_64_adler.cpp

Reviewed-by: kvn, dlong

Author: Vladimir Ivanov

src/hotspot/cpu/x86/macroAssembler_x86.hpp

@@ -1961,7 +1961,6 @@ class MacroAssembler: public Assembler {
   void kernel_crc32_avx512_256B(Register crc, Register buf, Register len, Register key, Register pos,
                                 Register tmp1, Register tmp2, Label& L_barrett, Label& L_16B_reduction_loop,
                                 Label& L_get_last_two_xmms, Label& L_128_done, Label& L_cleanup);
-  void updateBytesAdler32(Register adler32, Register buf, Register length, XMMRegister shuf0, XMMRegister shuf1, ExternalAddress scale);
 #endif // _LP64
 
   // CRC32C code for java.util.zip.CRC32C::updateBytes() intrinsic

src/hotspot/cpu/x86/macroAssembler_x86_adler.cpp

@@ -6733,46 +6733,6 @@ address StubGenerator::generate_updateBytesCRC32C(bool is_pclmulqdq_supported) {
 }
 
 
-/***
- *  Arguments:
- *
- *  Inputs:
- *   c_rarg0   - int   adler
- *   c_rarg1   - byte* buff
- *   c_rarg2   - int   len
- *
- * Output:
- *   rax   - int adler result
- */
-
-address StubGenerator::generate_updateBytesAdler32() {
-  assert(UseAdler32Intrinsics, "need AVX2");
-
-  __ align(CodeEntryAlignment);
-  StubCodeMark mark(this, "StubRoutines", "updateBytesAdler32");
-  address start = __ pc();
-
-  const Register data = r9;
-  const Register size = r10;
-
-  const XMMRegister yshuf0 = xmm6;
-  const XMMRegister yshuf1 = xmm7;
-  assert_different_registers(c_rarg0, c_rarg1, c_rarg2, data, size);
-
-  BLOCK_COMMENT("Entry:");
-  __ enter(); // required for proper stackwalking of RuntimeStub frame
-
-  __ vmovdqu(yshuf0, ExternalAddress((address) StubRoutines::x86::_adler32_shuf0_table), r9);
-  __ vmovdqu(yshuf1, ExternalAddress((address) StubRoutines::x86::_adler32_shuf1_table), r9);
-  __ movptr(data, c_rarg1); //data
-  __ movl(size, c_rarg2); //length
-  __ updateBytesAdler32(c_rarg0, data, size, yshuf0, yshuf1, ExternalAddress((address) StubRoutines::x86::_adler32_ascale_table));
-  __ leave();
-  __ ret(0);
-
-  return start;
-}
-
 /**
  *  Arguments:
  *