hotspot/src/share/vm/runtime/stubRoutines.cpp
author rprotacio
Wed, 17 Feb 2016 14:03:18 -0500
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child 38018 1dc6c6f21231
child 37161 e881f320966e
permissions -rw-r--r--
8148630: Convert TraceStartupTime to Unified Logging Summary: The former -XX:+TraceStartupTime flag has been converted to the UL option -Xlog:startuptime=info Reviewed-by: coleenp, dholmes
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/*
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 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "asm/codeBuffer.hpp"
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#include "code/codeCacheExtensions.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/interfaceSupport.hpp"
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#include "runtime/logTimer.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/stubRoutines.hpp"
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#include "utilities/copy.hpp"
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#ifdef COMPILER2
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#include "opto/runtime.hpp"
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#endif
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// Implementation of StubRoutines - for a description
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// of how to extend it, see the header file.
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// Class Variables
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BufferBlob* StubRoutines::_code1                                = NULL;
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BufferBlob* StubRoutines::_code2                                = NULL;
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address StubRoutines::_call_stub_return_address                 = NULL;
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address StubRoutines::_call_stub_entry                          = NULL;
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address StubRoutines::_catch_exception_entry                    = NULL;
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address StubRoutines::_forward_exception_entry                  = NULL;
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address StubRoutines::_throw_AbstractMethodError_entry          = NULL;
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address StubRoutines::_throw_IncompatibleClassChangeError_entry = NULL;
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address StubRoutines::_throw_NullPointerException_at_call_entry = NULL;
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address StubRoutines::_throw_StackOverflowError_entry           = NULL;
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address StubRoutines::_throw_delayed_StackOverflowError_entry   = NULL;
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address StubRoutines::_handler_for_unsafe_access_entry          = NULL;
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jint    StubRoutines::_verify_oop_count                         = 0;
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address StubRoutines::_verify_oop_subroutine_entry              = NULL;
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address StubRoutines::_atomic_xchg_entry                        = NULL;
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address StubRoutines::_atomic_xchg_ptr_entry                    = NULL;
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address StubRoutines::_atomic_store_entry                       = NULL;
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address StubRoutines::_atomic_store_ptr_entry                   = NULL;
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address StubRoutines::_atomic_cmpxchg_entry                     = NULL;
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address StubRoutines::_atomic_cmpxchg_ptr_entry                 = NULL;
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address StubRoutines::_atomic_cmpxchg_byte_entry                = NULL;
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address StubRoutines::_atomic_cmpxchg_long_entry                = NULL;
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address StubRoutines::_atomic_add_entry                         = NULL;
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address StubRoutines::_atomic_add_ptr_entry                     = NULL;
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address StubRoutines::_fence_entry                              = NULL;
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address StubRoutines::_d2i_wrapper                              = NULL;
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address StubRoutines::_d2l_wrapper                              = NULL;
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jint    StubRoutines::_fpu_cntrl_wrd_std                        = 0;
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jint    StubRoutines::_fpu_cntrl_wrd_24                         = 0;
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jint    StubRoutines::_fpu_cntrl_wrd_64                         = 0;
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jint    StubRoutines::_fpu_cntrl_wrd_trunc                      = 0;
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jint    StubRoutines::_mxcsr_std                                = 0;
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jint    StubRoutines::_fpu_subnormal_bias1[3]                   = { 0, 0, 0 };
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jint    StubRoutines::_fpu_subnormal_bias2[3]                   = { 0, 0, 0 };
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// Compiled code entry points default values
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// The default functions don't have separate disjoint versions.
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address StubRoutines::_jbyte_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);
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address StubRoutines::_jshort_arraycopy         = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);
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address StubRoutines::_jint_arraycopy           = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);
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address StubRoutines::_jlong_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);
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address StubRoutines::_oop_arraycopy            = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);
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address StubRoutines::_oop_arraycopy_uninit     = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit);
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address StubRoutines::_jbyte_disjoint_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);
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address StubRoutines::_jshort_disjoint_arraycopy         = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);
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address StubRoutines::_jint_disjoint_arraycopy           = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);
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address StubRoutines::_jlong_disjoint_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);
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address StubRoutines::_oop_disjoint_arraycopy            = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);
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address StubRoutines::_oop_disjoint_arraycopy_uninit     = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit);
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address StubRoutines::_arrayof_jbyte_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);
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address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);
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address StubRoutines::_arrayof_jint_arraycopy   = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);
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address StubRoutines::_arrayof_jlong_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);
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address StubRoutines::_arrayof_oop_arraycopy    = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);
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address StubRoutines::_arrayof_oop_arraycopy_uninit      = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit);
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address StubRoutines::_arrayof_jbyte_disjoint_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);
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address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);
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address StubRoutines::_arrayof_jint_disjoint_arraycopy   = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);
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address StubRoutines::_arrayof_jlong_disjoint_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);
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address StubRoutines::_arrayof_oop_disjoint_arraycopy    = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);
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address StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit);
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address StubRoutines::_zero_aligned_words = CAST_FROM_FN_PTR(address, Copy::zero_to_words);
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address StubRoutines::_checkcast_arraycopy               = NULL;
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address StubRoutines::_checkcast_arraycopy_uninit        = NULL;
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address StubRoutines::_unsafe_arraycopy                  = NULL;
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address StubRoutines::_generic_arraycopy                 = NULL;
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address StubRoutines::_jbyte_fill;
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address StubRoutines::_jshort_fill;
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address StubRoutines::_jint_fill;
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address StubRoutines::_arrayof_jbyte_fill;
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address StubRoutines::_arrayof_jshort_fill;
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address StubRoutines::_arrayof_jint_fill;
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address StubRoutines::_aescrypt_encryptBlock               = NULL;
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address StubRoutines::_aescrypt_decryptBlock               = NULL;
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address StubRoutines::_cipherBlockChaining_encryptAESCrypt = NULL;
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address StubRoutines::_cipherBlockChaining_decryptAESCrypt = NULL;
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address StubRoutines::_counterMode_AESCrypt                = NULL;
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address StubRoutines::_ghash_processBlocks                 = NULL;
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address StubRoutines::_sha1_implCompress     = NULL;
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address StubRoutines::_sha1_implCompressMB   = NULL;
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address StubRoutines::_sha256_implCompress   = NULL;
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address StubRoutines::_sha256_implCompressMB = NULL;
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address StubRoutines::_sha512_implCompress   = NULL;
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address StubRoutines::_sha512_implCompressMB = NULL;
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address StubRoutines::_updateBytesCRC32 = NULL;
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address StubRoutines::_crc_table_adr =    NULL;
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address StubRoutines::_crc32c_table_addr = NULL;
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address StubRoutines::_updateBytesCRC32C = NULL;
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address StubRoutines::_updateBytesAdler32 = NULL;
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address StubRoutines::_multiplyToLen = NULL;
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address StubRoutines::_squareToLen = NULL;
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address StubRoutines::_mulAdd = NULL;
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address StubRoutines::_montgomeryMultiply = NULL;
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address StubRoutines::_montgomerySquare = NULL;
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address StubRoutines::_vectorizedMismatch = NULL;
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address StubRoutines::_dexp = NULL;
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address StubRoutines::_dlog = NULL;
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address StubRoutines::_dpow = NULL;
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address StubRoutines::_dsin = NULL;
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address StubRoutines::_dcos = NULL;
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address StubRoutines::_dlibm_sin_cos_huge = NULL;
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address StubRoutines::_dlibm_reduce_pi04l = NULL;
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double (* StubRoutines::_intrinsic_log10 )(double) = NULL;
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double (* StubRoutines::_intrinsic_sin   )(double) = NULL;
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double (* StubRoutines::_intrinsic_cos   )(double) = NULL;
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double (* StubRoutines::_intrinsic_tan   )(double) = NULL;
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address StubRoutines::_safefetch32_entry                 = NULL;
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address StubRoutines::_safefetch32_fault_pc              = NULL;
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address StubRoutines::_safefetch32_continuation_pc       = NULL;
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address StubRoutines::_safefetchN_entry                  = NULL;
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address StubRoutines::_safefetchN_fault_pc               = NULL;
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address StubRoutines::_safefetchN_continuation_pc        = NULL;
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// Initialization
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//
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// Note: to break cycle with universe initialization, stubs are generated in two phases.
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// The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry).
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// The second phase includes all other stubs (which may depend on universe being initialized.)
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extern void StubGenerator_generate(CodeBuffer* code, bool all); // only interface to generators
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void StubRoutines::initialize1() {
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  if (_code1 == NULL) {
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    ResourceMark rm;
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    TraceStartupTime timer("StubRoutines generation 1");
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    _code1 = BufferBlob::create("StubRoutines (1)", code_size1);
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    if (_code1 == NULL) {
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      vm_exit_out_of_memory(code_size1, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (1)");
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    }
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    CodeBuffer buffer(_code1);
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    StubGenerator_generate(&buffer, false);
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    // When new stubs added we need to make sure there is some space left
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    // to catch situation when we should increase size again.
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    assert(code_size1 == 0 || buffer.insts_remaining() > 200, "increase code_size1");
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  }
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}
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#ifdef ASSERT
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typedef void (*arraycopy_fn)(address src, address dst, int count);
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// simple tests of generated arraycopy functions
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static void test_arraycopy_func(address func, int alignment) {
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  if (CodeCacheExtensions::use_pregenerated_interpreter() || !CodeCacheExtensions::is_executable(func)) {
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    // Exit safely if stubs were generated but cannot be used.
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    // Also excluding pregenerated interpreter since the code may depend on
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    // some registers being properly initialized (for instance Rthread)
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    return;
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  }
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  int v = 0xcc;
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  int v2 = 0x11;
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  jlong lbuffer[8];
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  jlong lbuffer2[8];
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  address fbuffer  = (address) lbuffer;
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  address fbuffer2 = (address) lbuffer2;
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  unsigned int i;
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  for (i = 0; i < sizeof(lbuffer); i++) {
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    fbuffer[i] = v; fbuffer2[i] = v2;
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  }
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  // C++ does not guarantee jlong[] array alignment to 8 bytes.
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  // Use middle of array to check that memory before it is not modified.
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  address buffer  = (address) round_to((intptr_t)&lbuffer[4], BytesPerLong);
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  address buffer2 = (address) round_to((intptr_t)&lbuffer2[4], BytesPerLong);
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  // do an aligned copy
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  ((arraycopy_fn)func)(buffer, buffer2, 0);
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  for (i = 0; i < sizeof(lbuffer); i++) {
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    assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
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  }
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  // adjust destination alignment
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  ((arraycopy_fn)func)(buffer, buffer2 + alignment, 0);
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  for (i = 0; i < sizeof(lbuffer); i++) {
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    assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
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  }
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  // adjust source alignment
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  ((arraycopy_fn)func)(buffer + alignment, buffer2, 0);
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  for (i = 0; i < sizeof(lbuffer); i++) {
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    assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
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  }
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}
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// simple test for SafeFetch32
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static void test_safefetch32() {
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  if (CanUseSafeFetch32()) {
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    int dummy = 17;
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    int* const p_invalid = (int*) get_segfault_address();
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    int* const p_valid = &dummy;
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    int result_invalid = SafeFetch32(p_invalid, 0xABC);
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    assert(result_invalid == 0xABC, "SafeFetch32 error");
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    int result_valid = SafeFetch32(p_valid, 0xABC);
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    assert(result_valid == 17, "SafeFetch32 error");
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  }
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}
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// simple test for SafeFetchN
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static void test_safefetchN() {
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  if (CanUseSafeFetchN()) {
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#ifdef _LP64
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    const intptr_t v1 = UCONST64(0xABCD00000000ABCD);
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    const intptr_t v2 = UCONST64(0xDEFD00000000DEFD);
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#else
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    const intptr_t v1 = 0xABCDABCD;
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    const intptr_t v2 = 0xDEFDDEFD;
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#endif
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    intptr_t dummy = v1;
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    intptr_t* const p_invalid = (intptr_t*) get_segfault_address();
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    intptr_t* const p_valid = &dummy;
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    intptr_t result_invalid = SafeFetchN(p_invalid, v2);
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    assert(result_invalid == v2, "SafeFetchN error");
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    intptr_t result_valid = SafeFetchN(p_valid, v2);
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    assert(result_valid == v1, "SafeFetchN error");
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  }
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}
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#endif
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void StubRoutines::initialize2() {
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  if (_code2 == NULL) {
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    ResourceMark rm;
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    TraceStartupTime timer("StubRoutines generation 2");
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    _code2 = BufferBlob::create("StubRoutines (2)", code_size2);
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    if (_code2 == NULL) {
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      vm_exit_out_of_memory(code_size2, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (2)");
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    }
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    CodeBuffer buffer(_code2);
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    StubGenerator_generate(&buffer, true);
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    // When new stubs added we need to make sure there is some space left
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    // to catch situation when we should increase size again.
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    assert(code_size2 == 0 || buffer.insts_remaining() > 200, "increase code_size2");
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  }
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#ifdef ASSERT
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#define TEST_ARRAYCOPY(type)                                                    \
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  test_arraycopy_func(          type##_arraycopy(),          sizeof(type));     \
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  test_arraycopy_func(          type##_disjoint_arraycopy(), sizeof(type));     \
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  test_arraycopy_func(arrayof_##type##_arraycopy(),          sizeof(HeapWord)); \
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  test_arraycopy_func(arrayof_##type##_disjoint_arraycopy(), sizeof(HeapWord))
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  // Make sure all the arraycopy stubs properly handle zero count
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  TEST_ARRAYCOPY(jbyte);
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  TEST_ARRAYCOPY(jshort);
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  TEST_ARRAYCOPY(jint);
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  TEST_ARRAYCOPY(jlong);
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#undef TEST_ARRAYCOPY
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#define TEST_FILL(type)                                                                      \
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  if (_##type##_fill != NULL) {                                                              \
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    union {                                                                                  \
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      double d;                                                                              \
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      type body[96];                                                                         \
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    } s;                                                                                     \
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                                                                                             \
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    int v = 32;                                                                              \
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    for (int offset = -2; offset <= 2; offset++) {                                           \
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      for (int i = 0; i < 96; i++) {                                                         \
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        s.body[i] = 1;                                                                       \
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      }                                                                                      \
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      type* start = s.body + 8 + offset;                                                     \
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      for (int aligned = 0; aligned < 2; aligned++) {                                        \
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        if (aligned) {                                                                       \
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          if (((intptr_t)start) % HeapWordSize == 0) {                                       \
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            ((void (*)(type*, int, int))StubRoutines::_arrayof_##type##_fill)(start, v, 80); \
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   324
          } else {                                                                           \
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            continue;                                                                        \
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          }                                                                                  \
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        } else {                                                                             \
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          ((void (*)(type*, int, int))StubRoutines::_##type##_fill)(start, v, 80);           \
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        }                                                                                    \
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        for (int i = 0; i < 96; i++) {                                                       \
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          if (i < (8 + offset) || i >= (88 + offset)) {                                      \
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            assert(s.body[i] == 1, "what?");                                                 \
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          } else {                                                                           \
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            assert(s.body[i] == 32, "what?");                                                \
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   335
          }                                                                                  \
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        }                                                                                    \
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      }                                                                                      \
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    }                                                                                        \
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  }                                                                                          \
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  TEST_FILL(jbyte);
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  TEST_FILL(jshort);
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  TEST_FILL(jint);
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#undef TEST_FILL
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   346
5883
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#define TEST_COPYRTN(type) \
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  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_##type##s_atomic),  sizeof(type)); \
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  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::arrayof_conjoint_##type##s), (int)MAX2(sizeof(HeapWord), sizeof(type)))
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   350
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  // Make sure all the copy runtime routines properly handle zero count
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  TEST_COPYRTN(jbyte);
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  TEST_COPYRTN(jshort);
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  TEST_COPYRTN(jint);
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  TEST_COPYRTN(jlong);
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   356
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#undef TEST_COPYRTN
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   358
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   359
  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_words), sizeof(HeapWord));
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  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words), sizeof(HeapWord));
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   361
  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words_atomic), sizeof(HeapWord));
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   362
  // Aligned to BytesPerLong
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   363
  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong));
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diff changeset
   364
  test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong));
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diff changeset
   365
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   366
  // test safefetch routines
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   367
  // Not on Windows 32bit until 8074860 is fixed
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   368
#if ! (defined(_WIN32) && defined(_M_IX86))
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  test_safefetch32();
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  test_safefetchN();
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   371
#endif
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1
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#endif
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}
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void stubRoutines_init1() { StubRoutines::initialize1(); }
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void stubRoutines_init2() { StubRoutines::initialize2(); }
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   379
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//
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   381
// Default versions of arraycopy functions
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   382
//
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   383
8498
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
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diff changeset
   384
static void gen_arraycopy_barrier_pre(oop* dest, size_t count, bool dest_uninitialized) {
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4645
diff changeset
   385
    assert(count != 0, "count should be non-zero");
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4645
diff changeset
   386
    assert(count <= (size_t)max_intx, "count too large");
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4645
diff changeset
   387
    BarrierSet* bs = Universe::heap()->barrier_set();
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4645
diff changeset
   388
    assert(bs->has_write_ref_array_pre_opt(), "Must have pre-barrier opt");
8498
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   389
    bs->write_ref_array_pre(dest, (int)count, dest_uninitialized);
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4645
diff changeset
   390
}
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
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diff changeset
   391
1
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   392
static void gen_arraycopy_barrier(oop* dest, size_t count) {
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   393
    assert(count != 0, "count should be non-zero");
489c9b5090e2 Initial load
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   394
    BarrierSet* bs = Universe::heap()->barrier_set();
489c9b5090e2 Initial load
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   395
    assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
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diff changeset
   396
    bs->write_ref_array((HeapWord*)dest, count);
1
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diff changeset
   397
}
489c9b5090e2 Initial load
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parents:
diff changeset
   398
489c9b5090e2 Initial load
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parents:
diff changeset
   399
JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count))
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   400
#ifndef PRODUCT
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   401
  SharedRuntime::_jbyte_array_copy_ctr++;      // Slow-path byte array copy
489c9b5090e2 Initial load
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   402
#endif // !PRODUCT
5883
8dc4bdc132d5 6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
kvn
parents: 5547
diff changeset
   403
  Copy::conjoint_jbytes_atomic(src, dest, count);
1
489c9b5090e2 Initial load
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parents:
diff changeset
   404
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
#ifndef PRODUCT
489c9b5090e2 Initial load
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parents:
diff changeset
   408
  SharedRuntime::_jshort_array_copy_ctr++;     // Slow-path short/char array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  Copy::conjoint_jshorts_atomic(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  SharedRuntime::_jint_array_copy_ctr++;       // Slow-path int/float array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
#endif // !PRODUCT
489c9b5090e2 Initial load
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parents:
diff changeset
   417
  Copy::conjoint_jints_atomic(src, dest, count);
489c9b5090e2 Initial load
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parents:
diff changeset
   418
JRT_END
489c9b5090e2 Initial load
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parents:
diff changeset
   419
489c9b5090e2 Initial load
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parents:
diff changeset
   420
JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count))
489c9b5090e2 Initial load
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parents:
diff changeset
   421
#ifndef PRODUCT
489c9b5090e2 Initial load
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parents:
diff changeset
   422
  SharedRuntime::_jlong_array_copy_ctr++;      // Slow-path long/double array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
#endif // !PRODUCT
489c9b5090e2 Initial load
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parents:
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   424
  Copy::conjoint_jlongs_atomic(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
  SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy
489c9b5090e2 Initial load
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parents:
diff changeset
   430
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  assert(count != 0, "count should be non-zero");
8498
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   432
  gen_arraycopy_barrier_pre(dest, count, /*dest_uninitialized*/false);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   433
  Copy::conjoint_oops_atomic(src, dest, count);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   434
  gen_arraycopy_barrier(dest, count);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   435
JRT_END
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   436
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   437
JRT_LEAF(void, StubRoutines::oop_copy_uninit(oop* src, oop* dest, size_t count))
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   438
#ifndef PRODUCT
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   439
  SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   440
#endif // !PRODUCT
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   441
  assert(count != 0, "count should be non-zero");
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   442
  gen_arraycopy_barrier_pre(dest, count, /*dest_uninitialized*/true);
1
489c9b5090e2 Initial load
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parents:
diff changeset
   443
  Copy::conjoint_oops_atomic(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  gen_arraycopy_barrier(dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  SharedRuntime::_jbyte_array_copy_ctr++;      // Slow-path byte array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
#endif // !PRODUCT
5883
8dc4bdc132d5 6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
kvn
parents: 5547
diff changeset
   451
  Copy::arrayof_conjoint_jbytes(src, dest, count);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
  SharedRuntime::_jshort_array_copy_ctr++;     // Slow-path short/char array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
  Copy::arrayof_conjoint_jshorts(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  SharedRuntime::_jint_array_copy_ctr++;       // Slow-path int/float array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  Copy::arrayof_conjoint_jints(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  SharedRuntime::_jlong_array_copy_ctr++;       // Slow-path int/float array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  Copy::arrayof_conjoint_jlongs(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  assert(count != 0, "count should be non-zero");
8498
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   480
  gen_arraycopy_barrier_pre((oop *) dest, count, /*dest_uninitialized*/false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  Copy::arrayof_conjoint_oops(src, dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  gen_arraycopy_barrier((oop *) dest, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
JRT_END
6433
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   484
8498
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   485
JRT_LEAF(void, StubRoutines::arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count))
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   486
#ifndef PRODUCT
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   487
  SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   488
#endif // !PRODUCT
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   489
  assert(count != 0, "count should be non-zero");
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   490
  gen_arraycopy_barrier_pre((oop *) dest, count, /*dest_uninitialized*/true);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   491
  Copy::arrayof_conjoint_oops(src, dest, count);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   492
  gen_arraycopy_barrier((oop *) dest, count);
6398004126b9 6627983: G1: Bad oop deference during marking
iveresov
parents: 7397
diff changeset
   493
JRT_END
6433
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   494
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   495
address StubRoutines::select_fill_function(BasicType t, bool aligned, const char* &name) {
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   496
#define RETURN_STUB(xxx_fill) { \
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   497
  name = #xxx_fill; \
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   498
  return StubRoutines::xxx_fill(); }
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   499
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   500
  switch (t) {
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   501
  case T_BYTE:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   502
  case T_BOOLEAN:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   503
    if (!aligned) RETURN_STUB(jbyte_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   504
    RETURN_STUB(arrayof_jbyte_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   505
  case T_CHAR:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   506
  case T_SHORT:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   507
    if (!aligned) RETURN_STUB(jshort_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   508
    RETURN_STUB(arrayof_jshort_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   509
  case T_INT:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   510
  case T_FLOAT:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   511
    if (!aligned) RETURN_STUB(jint_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   512
    RETURN_STUB(arrayof_jint_fill);
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   513
  case T_DOUBLE:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   514
  case T_LONG:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   515
  case T_ARRAY:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   516
  case T_OBJECT:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   517
  case T_NARROWOOP:
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13391
diff changeset
   518
  case T_NARROWKLASS:
6433
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   519
  case T_ADDRESS:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   520
    // Currently unsupported
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   521
    return NULL;
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   522
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   523
  default:
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   524
    ShouldNotReachHere();
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   525
    return NULL;
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   526
  }
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   527
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   528
#undef RETURN_STUB
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 5883
diff changeset
   529
}
9102
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   530
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   531
// constants for computing the copy function
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   532
enum {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   533
  COPYFUNC_UNALIGNED = 0,
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   534
  COPYFUNC_ALIGNED = 1,                 // src, dest aligned to HeapWordSize
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   535
  COPYFUNC_CONJOINT = 0,
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   536
  COPYFUNC_DISJOINT = 2                 // src != dest, or transfer can descend
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   537
};
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   538
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   539
// Note:  The condition "disjoint" applies also for overlapping copies
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   540
// where an descending copy is permitted (i.e., dest_offset <= src_offset).
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   541
address
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   542
StubRoutines::select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   543
  int selector =
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   544
    (aligned  ? COPYFUNC_ALIGNED  : COPYFUNC_UNALIGNED) +
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   545
    (disjoint ? COPYFUNC_DISJOINT : COPYFUNC_CONJOINT);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   546
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   547
#define RETURN_STUB(xxx_arraycopy) { \
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   548
  name = #xxx_arraycopy; \
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   549
  return StubRoutines::xxx_arraycopy(); }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   550
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   551
#define RETURN_STUB_PARM(xxx_arraycopy, parm) {           \
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   552
  name = #xxx_arraycopy; \
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   553
  return StubRoutines::xxx_arraycopy(parm); }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   554
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   555
  switch (t) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   556
  case T_BYTE:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   557
  case T_BOOLEAN:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   558
    switch (selector) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   559
    case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jbyte_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   560
    case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jbyte_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   561
    case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jbyte_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   562
    case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jbyte_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   563
    }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   564
  case T_CHAR:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   565
  case T_SHORT:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   566
    switch (selector) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   567
    case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jshort_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   568
    case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jshort_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   569
    case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jshort_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   570
    case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jshort_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   571
    }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   572
  case T_INT:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   573
  case T_FLOAT:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   574
    switch (selector) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   575
    case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   576
    case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   577
    case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jint_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   578
    case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jint_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   579
    }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   580
  case T_DOUBLE:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   581
  case T_LONG:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   582
    switch (selector) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   583
    case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jlong_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   584
    case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jlong_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   585
    case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB(jlong_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   586
    case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED:    RETURN_STUB(arrayof_jlong_disjoint_arraycopy);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   587
    }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   588
  case T_ARRAY:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   589
  case T_OBJECT:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   590
    switch (selector) {
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   591
    case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB_PARM(oop_arraycopy, dest_uninitialized);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   592
    case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED:    RETURN_STUB_PARM(arrayof_oop_arraycopy, dest_uninitialized);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   593
    case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED:  RETURN_STUB_PARM(oop_disjoint_arraycopy, dest_uninitialized);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   594
    case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED:    RETURN_STUB_PARM(arrayof_oop_disjoint_arraycopy, dest_uninitialized);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   595
    }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   596
  default:
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   597
    ShouldNotReachHere();
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   598
    return NULL;
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   599
  }
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   600
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
diff changeset
   601
#undef RETURN_STUB
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8498
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   602
#undef RETURN_STUB_PARM
4708a4aefb33 7033154: Improve C1 arraycopy performance
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parents: 8498
diff changeset
   603
}