Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/mips/vm/interpreter_mips.hpp@3cedde979d75 (annotated)
src/cpu/mips/vm/interpreter_mips.hpp
Tue, 31 May 2016 00:22:06 -0400
- author
- aoqi
- date
- Tue, 31 May 2016 00:22:06 -0400
- changeset 16
- 3cedde979d75
- parent 1
- 2d8a650513c2
- child 6880
- 52ea28d233d2
- permissions
- -rw-r--r--
[Code Reorganization] load_two_bytes_from_at_bcp -> get_2_byte_integer_at_bcp
remove useless MacroAssembler::store_two_byts_to_at_bcp
change MacroAssembler::load_two_bytes_from_at_bcp to InterpreterMacroAssembler::get_2_byte_integer_at_bcp
change MacroAssembler::get_4_byte_integer_at_bcp to InterpreterMacroAssembler::get_4_byte_integer_at_bcp
| aoqi@1 | 1 | /* |
| aoqi@1 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| aoqi@1 | 3 | * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved. |
| aoqi@1 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@1 | 5 | * |
| aoqi@1 | 6 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@1 | 7 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@1 | 8 | * published by the Free Software Foundation. |
| aoqi@1 | 9 | * |
| aoqi@1 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@1 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@1 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@1 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@1 | 14 | * accompanied this code). |
| aoqi@1 | 15 | * |
| aoqi@1 | 16 | * You should have received a copy of the GNU General Public License version |
| aoqi@1 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@1 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@1 | 19 | * |
| aoqi@1 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@1 | 21 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@1 | 22 | * questions. |
| aoqi@1 | 23 | * |
| aoqi@1 | 24 | */ |
| aoqi@1 | 25 | |
| aoqi@1 | 26 | #ifndef CPU_MIPS_VM_INTERPRETER_MIPS_HPP |
| aoqi@1 | 27 | #define CPU_MIPS_VM_INTERPRETER_MIPS_HPP |
| aoqi@1 | 28 | |
| aoqi@1 | 29 | public: |
| aoqi@1 | 30 | |
| aoqi@1 | 31 | // Sentinel placed in the code for interpreter returns so |
| aoqi@1 | 32 | // that i2c adapters and osr code can recognize an interpreter |
| aoqi@1 | 33 | // return address and convert the return to a specialized |
| aoqi@1 | 34 | // block of code to handle compiedl return values and cleaning |
| aoqi@1 | 35 | // the fpu stack. |
| aoqi@1 | 36 | static const int return_sentinel; |
| aoqi@1 | 37 | |
| aoqi@1 | 38 | static Address::ScaleFactor stackElementScale() { |
| aoqi@1 | 39 | // return TaggedStackInterpreter? Address::times_8 : Address::times_4; |
| aoqi@1 | 40 | return NOT_LP64(Address::times_4)LP64_ONLY(Address::times_8); |
| aoqi@1 | 41 | } |
| aoqi@1 | 42 | |
| aoqi@1 | 43 | // Offset from rsp (which points to the last stack element) |
| aoqi@1 | 44 | static int expr_offset_in_bytes(int i) { return stackElementSize*i ; } |
| aoqi@1 | 45 | // Size of interpreter code. Increase if too small. Interpreter will |
| aoqi@1 | 46 | // fail with a guarantee ("not enough space for interpreter generation"); |
| aoqi@1 | 47 | // if too small. |
| aoqi@1 | 48 | // Run with +PrintInterpreterSize to get the VM to print out the size. |
| aoqi@1 | 49 | // Max size with JVMTI and TaggedStackInterpreter |
| aoqi@1 | 50 | const static int InterpreterCodeSize = 168 * 1024; |
| aoqi@1 | 51 | #if 0 |
| aoqi@1 | 52 | // Support for Tagged Stacks |
| aoqi@1 | 53 | |
| aoqi@1 | 54 | // Stack index relative to tos (which points at value) |
| aoqi@1 | 55 | static int expr_index_at(int i) { |
| aoqi@1 | 56 | return stackElementWords() * i; |
| aoqi@1 | 57 | } |
| aoqi@1 | 58 | |
| aoqi@1 | 59 | static int expr_tag_index_at(int i) { |
| aoqi@1 | 60 | assert(TaggedStackInterpreter, "should not call this"); |
| aoqi@1 | 61 | // tag is one word above java stack element |
| aoqi@1 | 62 | return stackElementWords() * i + 1; |
| aoqi@1 | 63 | } |
| aoqi@1 | 64 | |
| aoqi@1 | 65 | // Already negated by c++ interpreter |
| aoqi@1 | 66 | static int local_index_at(int i) { |
| aoqi@1 | 67 | assert(i<=0, "local direction already negated"); |
| aoqi@1 | 68 | return stackElementWords() * i + (value_offset_in_bytes()/wordSize); |
| aoqi@1 | 69 | } |
| aoqi@1 | 70 | |
| aoqi@1 | 71 | static int local_tag_index_at(int i) { |
| aoqi@1 | 72 | assert(i<=0, "local direction already negated"); |
| aoqi@1 | 73 | assert(TaggedStackInterpreter, "should not call this"); |
| aoqi@1 | 74 | return stackElementWords() * i + (tag_offset_in_bytes()/wordSize); |
| aoqi@1 | 75 | } |
| aoqi@1 | 76 | #endif |
| aoqi@1 | 77 | #endif // CPU_MIPS_VM_INTERPRETER_MIPS_HPP |
| aoqi@1 | 78 |
