1 /*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_SPARC_C1_MACROASSEMBLER_SPARC_HPP
26 #define CPU_SPARC_C1_MACROASSEMBLER_SPARC_HPP
27
28 void pd_init() { /* nothing to do */ }
29
30 public:
31 void try_allocate(
32 Register obj, // result: pointer to object after successful allocation
33 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
34 int con_size_in_bytes, // object size in bytes if known at compile time
35 Register t1, // temp register
36 Register t2, // temp register
37 Label& slow_case // continuation point if fast allocation fails
38 );
39
40 void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
41 void initialize_body(Register base, Register index);
42
43 // locking/unlocking
44 void lock_object (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
45 void unlock_object(Register Rmark, Register Roop, Register Rbox, Label& slow_case);
46
47 void initialize_object(
48 Register obj, // result: pointer to object after successful allocation
49 Register klass, // object klass
50 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
51 int con_size_in_bytes, // object size in bytes if known at compile time
52 Register t1, // temp register
53 Register t2, // temp register
54 bool is_tlab_allocated // the object was allocated in a TLAB; relevant for the implementation of ZeroTLAB
55 );
56
57 // allocation of fixed-size objects
58 // (can also be used to allocate fixed-size arrays, by setting
59 // hdr_size correctly and storing the array length afterwards)
60 void allocate_object(
61 Register obj, // result: pointer to object after successful allocation
62 Register t1, // temp register
63 Register t2, // temp register
64 Register t3, // temp register
65 int hdr_size, // object header size in words
66 int obj_size, // object size in words
67 Register klass, // object klass
68 Label& slow_case // continuation point if fast allocation fails
69 );
70
71 enum {
72 max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
73 };
74
75 // allocation of arrays
76 void allocate_array(
77 Register obj, // result: pointer to array after successful allocation
78 Register len, // array length
79 Register t1, // temp register
80 Register t2, // temp register
81 Register t3, // temp register
82 int hdr_size, // object header size in words
83 int elt_size, // element size in bytes
84 Register klass, // object klass
85 Label& slow_case // continuation point if fast allocation fails
86 );
87
88 // invalidates registers in this window
89 void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
90 Register preserve1 = noreg, Register preserve2 = noreg);
91
92 // This platform only uses signal-based null checks. The Label is not needed.
93 void null_check(Register r, Label *Lnull = NULL) { MacroAssembler::null_check(r); }
94
95 void save_live_registers_no_oop_map(bool save_fpu_registers);
96 void restore_live_registers(bool restore_fpu_registers);
97
98 #endif // CPU_SPARC_C1_MACROASSEMBLER_SPARC_HPP