Mercurial > hg > truffle
annotate src/os_cpu/windows_x86/vm/windows_x86_64.ad @ 7554:9472211c812b
named constants for snippet probabilities (likely, frequent, fast_path, deopt), see CR-7
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Thu, 24 Jan 2013 18:20:46 +0100 |
parents | 9b8ce46870df |
children | e961c11b85fe |
rev | line source |
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0 | 1 // |
4950 | 2 // Copyright (c) 2003, 2012, 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 | |
25 // AMD64 Win32 Architecture Description File | |
26 | |
27 //----------OS-DEPENDENT ENCODING BLOCK----------------------------------------------------- | |
28 // This block specifies the encoding classes used by the compiler to output | |
29 // byte streams. Encoding classes generate functions which are called by | |
30 // Machine Instruction Nodes in order to generate the bit encoding of the | |
31 // instruction. Operands specify their base encoding interface with the | |
32 // interface keyword. There are currently supported four interfaces, | |
33 // REG_INTER, CONST_INTER, MEMORY_INTER, & COND_INTER. REG_INTER causes an | |
34 // operand to generate a function which returns its register number when | |
35 // queried. CONST_INTER causes an operand to generate a function which | |
36 // returns the value of the constant when queried. MEMORY_INTER causes an | |
37 // operand to generate four functions which return the Base Register, the | |
38 // Index Register, the Scale Value, and the Offset Value of the operand when | |
39 // queried. COND_INTER causes an operand to generate six functions which | |
40 // return the encoding code (ie - encoding bits for the instruction) | |
41 // associated with each basic boolean condition for a conditional instruction. | |
42 // Instructions specify two basic values for encoding. They use the | |
43 // ins_encode keyword to specify their encoding class (which must be one of | |
44 // the class names specified in the encoding block), and they use the | |
45 // opcode keyword to specify, in order, their primary, secondary, and | |
46 // tertiary opcode. Only the opcode sections which a particular instruction | |
47 // needs for encoding need to be specified. | |
48 encode %{ | |
49 // Build emit functions for each basic byte or larger field in the intel | |
50 // encoding scheme (opcode, rm, sib, immediate), and call them from C++ | |
51 // code in the enc_class source block. Emit functions will live in the | |
52 // main source block for now. In future, we can generalize this by | |
53 // adding a syntax that specifies the sizes of fields in an order, | |
54 // so that the adlc can build the emit functions automagically | |
55 | |
56 enc_class Java_To_Runtime (method meth) %{ // CALL Java_To_Runtime | |
57 // No relocation needed | |
58 | |
59 // movq r10, <meth> | |
60 emit_opcode(cbuf, Assembler::REX_WB); | |
61 emit_opcode(cbuf, 0xB8 | (R10_enc - 8)); | |
62 emit_d64(cbuf, (int64_t) $meth$$method); | |
63 | |
64 // call (r10) | |
65 emit_opcode(cbuf, Assembler::REX_B); | |
66 emit_opcode(cbuf, 0xFF); | |
67 emit_opcode(cbuf, 0xD0 | (R10_enc - 8)); | |
68 %} | |
69 | |
70 %} | |
71 | |
72 // | |
73 // Platform dependent source | |
74 // | |
75 source %{ | |
76 | |
77 int MachCallRuntimeNode::ret_addr_offset() | |
78 { | |
79 return 13; // movq r10,#addr; callq (r10) | |
80 } | |
81 | |
82 %} |