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annotate src/cpu/x86/vm/c1_MacroAssembler_x86.hpp @ 10408:836a62f43af9
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 19 Jun 2013 10:45:56 +0200 |
| parents | ce248dc0a656 |
| children |
| rev | line source |
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| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef CPU_X86_VM_C1_MACROASSEMBLER_X86_HPP |
| 26 #define CPU_X86_VM_C1_MACROASSEMBLER_X86_HPP | |
| 27 | |
| 0 | 28 // C1_MacroAssembler contains high-level macros for C1 |
| 29 | |
| 30 private: | |
| 31 int _rsp_offset; // track rsp changes | |
| 32 // initialization | |
| 33 void pd_init() { _rsp_offset = 0; } | |
| 34 | |
| 35 public: | |
| 36 void try_allocate( | |
| 37 Register obj, // result: pointer to object after successful allocation | |
| 38 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
| 39 int con_size_in_bytes, // object size in bytes if known at compile time | |
| 40 Register t1, // temp register | |
| 41 Register t2, // temp register | |
| 42 Label& slow_case // continuation point if fast allocation fails | |
| 43 ); | |
| 44 | |
| 45 void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2); | |
| 46 void initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1); | |
| 47 | |
| 48 // locking | |
| 49 // hdr : must be rax, contents destroyed | |
| 50 // obj : must point to the object to lock, contents preserved | |
| 51 // disp_hdr: must point to the displaced header location, contents preserved | |
| 52 // scratch : scratch register, contents destroyed | |
| 53 // returns code offset at which to add null check debug information | |
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ce248dc0a656
removed all Graal modifications to ci and c1
Doug Simon <doug.simon@oracle.com>
parents:
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54 int lock_object (Register swap, Register obj, Register disp_hdr, Register scratch, Label& slow_case); |
| 0 | 55 |
| 56 // unlocking | |
| 57 // hdr : contents destroyed | |
| 58 // obj : must point to the object to lock, contents preserved | |
| 59 // disp_hdr: must be eax & must point to the displaced header location, contents destroyed | |
|
7126
ce248dc0a656
removed all Graal modifications to ci and c1
Doug Simon <doug.simon@oracle.com>
parents:
3714
diff
changeset
|
60 void unlock_object(Register swap, Register obj, Register lock, Label& slow_case); |
| 0 | 61 |
| 62 void initialize_object( | |
| 63 Register obj, // result: pointer to object after successful allocation | |
| 64 Register klass, // object klass | |
| 65 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
| 66 int con_size_in_bytes, // object size in bytes if known at compile time | |
| 67 Register t1, // temp register | |
| 68 Register t2 // temp register | |
| 69 ); | |
| 70 | |
| 71 // allocation of fixed-size objects | |
| 72 // (can also be used to allocate fixed-size arrays, by setting | |
| 73 // hdr_size correctly and storing the array length afterwards) | |
| 74 // obj : must be rax, will contain pointer to allocated object | |
| 75 // t1, t2 : scratch registers - contents destroyed | |
| 76 // header_size: size of object header in words | |
| 77 // object_size: total size of object in words | |
| 78 // slow_case : exit to slow case implementation if fast allocation fails | |
| 79 void allocate_object(Register obj, Register t1, Register t2, int header_size, int object_size, Register klass, Label& slow_case); | |
| 80 | |
| 81 enum { | |
| 82 max_array_allocation_length = 0x00FFFFFF | |
| 83 }; | |
| 84 | |
| 85 // allocation of arrays | |
| 86 // obj : must be rax, will contain pointer to allocated object | |
| 87 // len : array length in number of elements | |
| 88 // t : scratch register - contents destroyed | |
| 89 // header_size: size of object header in words | |
| 90 // f : element scale factor | |
| 91 // slow_case : exit to slow case implementation if fast allocation fails | |
| 92 void allocate_array(Register obj, Register len, Register t, Register t2, int header_size, Address::ScaleFactor f, Register klass, Label& slow_case); | |
| 93 | |
| 94 int rsp_offset() const { return _rsp_offset; } | |
| 95 void set_rsp_offset(int n) { _rsp_offset = n; } | |
| 96 | |
| 97 // Note: NEVER push values directly, but only through following push_xxx functions; | |
| 98 // This helps us to track the rsp changes compared to the entry rsp (->_rsp_offset) | |
| 99 | |
| 304 | 100 void push_jint (jint i) { _rsp_offset++; push(i); } |
| 0 | 101 void push_oop (jobject o) { _rsp_offset++; pushoop(o); } |
| 304 | 102 // Seems to always be in wordSize |
| 103 void push_addr (Address a) { _rsp_offset++; pushptr(a); } | |
| 104 void push_reg (Register r) { _rsp_offset++; push(r); } | |
| 105 void pop_reg (Register r) { _rsp_offset--; pop(r); assert(_rsp_offset >= 0, "stack offset underflow"); } | |
| 0 | 106 |
| 107 void dec_stack (int nof_words) { | |
| 108 _rsp_offset -= nof_words; | |
| 109 assert(_rsp_offset >= 0, "stack offset underflow"); | |
| 304 | 110 addptr(rsp, wordSize * nof_words); |
| 0 | 111 } |
| 112 | |
| 113 void dec_stack_after_call (int nof_words) { | |
| 114 _rsp_offset -= nof_words; | |
| 115 assert(_rsp_offset >= 0, "stack offset underflow"); | |
| 116 } | |
| 117 | |
| 118 void invalidate_registers(bool inv_rax, bool inv_rbx, bool inv_rcx, bool inv_rdx, bool inv_rsi, bool inv_rdi) PRODUCT_RETURN; | |
| 1972 | 119 |
| 120 #endif // CPU_X86_VM_C1_MACROASSEMBLER_X86_HPP |