src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp

8248238: Adding Windows support to OpenJDK on AArch64

Summary: LP64 vs LLP64 changes to add Windows support

Contributed-by: Monica Beckwith <monica.beckwith@microsoft.com>, Ludovic Henry <luhenry@microsoft.com>
Reviewed-by:
8248238: Adding Windows support to OpenJDK on AArch64

Summary: Adding Windows support for AArch64

Contributed-by: Ludovic Henry <luhenry@microsoft.com>, Monica Beckwith <monica.beckwith@microsoft.com>
Reviewed-by:

*** 1350,1360 ****
      // get object class
      // not a safepoint as obj null check happens earlier
      __ load_klass(klass_RInfo, obj);
      if (k->is_loaded()) {
        // See if we get an immediate positive hit
!       __ ldr(rscratch1, Address(klass_RInfo, long(k->super_check_offset())));
        __ cmp(k_RInfo, rscratch1);
        if ((juint)in_bytes(Klass::secondary_super_cache_offset()) != k->super_check_offset()) {
          __ br(Assembler::NE, *failure_target);
          // successful cast, fall through to profile or jump
        } else {
--- 1350,1360 ----
      // get object class
      // not a safepoint as obj null check happens earlier
      __ load_klass(klass_RInfo, obj);
      if (k->is_loaded()) {
        // See if we get an immediate positive hit
!       __ ldr(rscratch1, Address(klass_RInfo, int64_t(k->super_check_offset())));
        __ cmp(k_RInfo, rscratch1);
        if ((juint)in_bytes(Klass::secondary_super_cache_offset()) != k->super_check_offset()) {
          __ br(Assembler::NE, *failure_target);
          // successful cast, fall through to profile or jump
        } else {
*** 2014,2024 ****
        ShouldNotReachHere();
      }
    } else if (code == lir_cmp_l2i) {
      Label done;
      __ cmp(left->as_register_lo(), right->as_register_lo());
!     __ mov(dst->as_register(), (u_int64_t)-1L);
      __ br(Assembler::LT, done);
      __ csinc(dst->as_register(), zr, zr, Assembler::EQ);
      __ bind(done);
    } else {
      ShouldNotReachHere();
--- 2014,2024 ----
        ShouldNotReachHere();
      }
    } else if (code == lir_cmp_l2i) {
      Label done;
      __ cmp(left->as_register_lo(), right->as_register_lo());
!     __ mov(dst->as_register(), (uint64_t)-1L);
      __ br(Assembler::LT, done);
      __ csinc(dst->as_register(), zr, zr, Assembler::EQ);
      __ bind(done);
    } else {
      ShouldNotReachHere();
*** 2282,2292 ****
    }
  
    assert(default_type != NULL && default_type->is_array_klass() && default_type->is_loaded(), "must be true at this point");
  
    int elem_size = type2aelembytes(basic_type);
-   int shift_amount;
    int scale = exact_log2(elem_size);
  
    Address src_length_addr = Address(src, arrayOopDesc::length_offset_in_bytes());
    Address dst_length_addr = Address(dst, arrayOopDesc::length_offset_in_bytes());
    Address src_klass_addr = Address(src, oopDesc::klass_offset_in_bytes());
--- 2282,2291 ----
*** 2673,2683 ****
    Register crc = op->crc()->as_register();
    Register val = op->val()->as_register();
    Register res = op->result_opr()->as_register();
  
    assert_different_registers(val, crc, res);
!   unsigned long offset;
    __ adrp(res, ExternalAddress(StubRoutines::crc_table_addr()), offset);
    if (offset) __ add(res, res, offset);
  
    __ mvnw(crc, crc); // ~crc
    __ update_byte_crc32(crc, val, res);
--- 2672,2682 ----
    Register crc = op->crc()->as_register();
    Register val = op->val()->as_register();
    Register res = op->result_opr()->as_register();
  
    assert_different_registers(val, crc, res);
!   uint64_t offset;
    __ adrp(res, ExternalAddress(StubRoutines::crc_table_addr()), offset);
    if (offset) __ add(res, res, offset);
  
    __ mvnw(crc, crc); // ~crc
    __ update_byte_crc32(crc, val, res);