Fri, 25 Mar 2011 09:35:39 +0100
7029017: Additional architecture support for c2 compiler
Summary: Enables cross building of a c2 VM. Support masking of shift counts when the processor architecture mandates it.
Reviewed-by: kvn, never
1 /*
2 * Copyright (c) 1999, 2011, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
25 #ifndef CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP
26 #define CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP
28 void pd_init() { /* nothing to do */ }
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 );
40 void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
41 void initialize_body(Register base, Register index);
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);
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 );
56 // allocation of fixed-size objects
57 // (can also be used to allocate fixed-size arrays, by setting
58 // hdr_size correctly and storing the array length afterwards)
59 void allocate_object(
60 Register obj, // result: pointer to object after successful allocation
61 Register t1, // temp register
62 Register t2, // temp register
63 Register t3, // temp register
64 int hdr_size, // object header size in words
65 int obj_size, // object size in words
66 Register klass, // object klass
67 Label& slow_case // continuation point if fast allocation fails
68 );
70 enum {
71 max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
72 };
74 // allocation of arrays
75 void allocate_array(
76 Register obj, // result: pointer to array after successful allocation
77 Register len, // array length
78 Register t1, // temp register
79 Register t2, // temp register
80 Register t3, // temp register
81 int hdr_size, // object header size in words
82 int elt_size, // element size in bytes
83 Register klass, // object klass
84 Label& slow_case // continuation point if fast allocation fails
85 );
87 // invalidates registers in this window
88 void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
89 Register preserve1 = noreg, Register preserve2 = noreg);
91 #endif // CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP