--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/templateInterpreterGenerator_x86_64.cpp Sat Dec 05 10:40:22 2015 -0500
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "asm/macroAssembler.hpp"
+#include "interpreter/interpreter.hpp"
+#include "interpreter/interpreterGenerator.hpp"
+#include "runtime/arguments.hpp"
+
+#define __ _masm->
+
+#ifndef CC_INTERP
+
+/**
+ * Method entry for static native methods:
+ * int java.util.zip.CRC32.update(int crc, int b)
+ */
+address InterpreterGenerator::generate_CRC32_update_entry() {
+ if (UseCRC32Intrinsics) {
+ address entry = __ pc();
+
+ // rbx,: Method*
+ // r13: senderSP must preserved for slow path, set SP to it on fast path
+ // c_rarg0: scratch (rdi on non-Win64, rcx on Win64)
+ // c_rarg1: scratch (rsi on non-Win64, rdx on Win64)
+
+ Label slow_path;
+ // If we need a safepoint check, generate full interpreter entry.
+ ExternalAddress state(SafepointSynchronize::address_of_state());
+ __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
+ SafepointSynchronize::_not_synchronized);
+ __ jcc(Assembler::notEqual, slow_path);
+
+ // We don't generate local frame and don't align stack because
+ // we call stub code and there is no safepoint on this path.
+
+ // Load parameters
+ const Register crc = rax; // crc
+ const Register val = c_rarg0; // source java byte value
+ const Register tbl = c_rarg1; // scratch
+
+ // Arguments are reversed on java expression stack
+ __ movl(val, Address(rsp, wordSize)); // byte value
+ __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC
+
+ __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr()));
+ __ notl(crc); // ~crc
+ __ update_byte_crc32(crc, val, tbl);
+ __ notl(crc); // ~crc
+ // result in rax
+
+ // _areturn
+ __ pop(rdi); // get return address
+ __ mov(rsp, r13); // set sp to sender sp
+ __ jmp(rdi);
+
+ // generate a vanilla native entry as the slow path
+ __ bind(slow_path);
+ __ jump_to_entry(Interpreter::entry_for_kind(Interpreter::native));
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+ * Method entry for static native methods:
+ * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len)
+ * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len)
+ */
+address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
+ if (UseCRC32Intrinsics) {
+ address entry = __ pc();
+
+ // rbx,: Method*
+ // r13: senderSP must preserved for slow path, set SP to it on fast path
+
+ Label slow_path;
+ // If we need a safepoint check, generate full interpreter entry.
+ ExternalAddress state(SafepointSynchronize::address_of_state());
+ __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
+ SafepointSynchronize::_not_synchronized);
+ __ jcc(Assembler::notEqual, slow_path);
+
+ // We don't generate local frame and don't align stack because
+ // we call stub code and there is no safepoint on this path.
+
+ // Load parameters
+ const Register crc = c_rarg0; // crc
+ const Register buf = c_rarg1; // source java byte array address
+ const Register len = c_rarg2; // length
+ const Register off = len; // offset (never overlaps with 'len')
+
+ // Arguments are reversed on java expression stack
+ // Calculate address of start element
+ if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) {
+ __ movptr(buf, Address(rsp, 3*wordSize)); // long buf
+ __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset
+ __ addq(buf, off); // + offset
+ __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC
+ } else {
+ __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array
+ __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
+ __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset
+ __ addq(buf, off); // + offset
+ __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC
+ }
+ // Can now load 'len' since we're finished with 'off'
+ __ movl(len, Address(rsp, wordSize)); // Length
+
+ __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len);
+ // result in rax
+
+ // _areturn
+ __ pop(rdi); // get return address
+ __ mov(rsp, r13); // set sp to sender sp
+ __ jmp(rdi);
+
+ // generate a vanilla native entry as the slow path
+ __ bind(slow_path);
+ __ jump_to_entry(Interpreter::entry_for_kind(Interpreter::native));
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+* Method entry for static native methods:
+* int java.util.zip.CRC32C.updateBytes(int crc, byte[] b, int off, int end)
+* int java.util.zip.CRC32C.updateByteBuffer(int crc, long address, int off, int end)
+*/
+address InterpreterGenerator::generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
+ if (UseCRC32CIntrinsics) {
+ address entry = __ pc();
+ // Load parameters
+ const Register crc = c_rarg0; // crc
+ const Register buf = c_rarg1; // source java byte array address
+ const Register len = c_rarg2;
+ const Register off = c_rarg3; // offset
+ const Register end = len;
+
+ // Arguments are reversed on java expression stack
+ // Calculate address of start element
+ if (kind == Interpreter::java_util_zip_CRC32C_updateDirectByteBuffer) {
+ __ movptr(buf, Address(rsp, 3 * wordSize)); // long buf
+ __ movl2ptr(off, Address(rsp, 2 * wordSize)); // offset
+ __ addq(buf, off); // + offset
+ __ movl(crc, Address(rsp, 5 * wordSize)); // Initial CRC
+ // Note on 5 * wordSize vs. 4 * wordSize:
+ // * int java.util.zip.CRC32C.updateByteBuffer(int crc, long address, int off, int end)
+ // 4 2,3 1 0
+ // end starts at SP + 8
+ // The Java(R) Virtual Machine Specification Java SE 7 Edition
+ // 4.10.2.3. Values of Types long and double
+ // "When calculating operand stack length, values of type long and double have length two."
+ } else {
+ __ movptr(buf, Address(rsp, 3 * wordSize)); // byte[] array
+ __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
+ __ movl2ptr(off, Address(rsp, 2 * wordSize)); // offset
+ __ addq(buf, off); // + offset
+ __ movl(crc, Address(rsp, 4 * wordSize)); // Initial CRC
+ }
+ __ movl(end, Address(rsp, wordSize)); // end
+ __ subl(end, off); // end - off
+ __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32C()), crc, buf, len);
+ // result in rax
+ // _areturn
+ __ pop(rdi); // get return address
+ __ mov(rsp, r13); // set sp to sender sp
+ __ jmp(rdi);
+
+ return entry;
+ }
+
+ return NULL;
+}
+#endif // ! CC_INTERP