1 /*
 2  * Copyright (c) 2006, 2021, 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 #include "precompiled.hpp"
26 #include "asm/assembler.hpp"
27 #include "code/vmreg.hpp"
28 #include "vmreg_x86.inline.hpp"
29 
30 
31 void VMRegImpl::set_regName() {
32   Register reg = ::as_Register(0);
33   int i;
34   for (i = 0; i < ConcreteRegisterImpl::max_gpr ; ) {
35     regName[i++] = reg->name();
36 #ifdef AMD64
37     regName[i++] = reg->name();
38 #endif // AMD64
39     reg = reg->successor();
40   }
41 
42   FloatRegister freg = ::as_FloatRegister(0);
43   for ( ; i < ConcreteRegisterImpl::max_fpr ; ) {
44     regName[i++] = freg->name();
45     regName[i++] = freg->name();
46     freg = freg->successor();
47   }
48 
49   XMMRegister xreg = ::as_XMMRegister(0);
50   for (; i < ConcreteRegisterImpl::max_xmm;) {
51     for (int j = 0 ; j < XMMRegisterImpl::max_slots_per_register ; j++) {
52       regName[i++] = xreg->name();
53     }
54     xreg = xreg->successor();
55   }
56 
57   KRegister kreg = ::as_KRegister(0);
58   for (; i < ConcreteRegisterImpl::max_kpr;) {
59     for (int j = 0; j < KRegisterImpl::max_slots_per_register; j++) {
60       regName[i++] = kreg->name();
61     }
62     kreg = kreg->successor();
63   }
64 
65   for ( ; i < ConcreteRegisterImpl::number_of_registers ; i ++ ) {
66     regName[i] = "NON-GPR-FPR-XMM-KREG";
67   }
68 }
69 
70 #define INTEGER_TYPE 0
71 #define VECTOR_TYPE 1
72 #define X87_TYPE 2
73 #define STACK_TYPE 3
74 
75 //TODO: Case for KRegisters
76 VMReg VMRegImpl::vmStorageToVMReg(int type, int index) {
77   switch(type) {
78     case INTEGER_TYPE: return ::as_Register(index)->as_VMReg();
79     case VECTOR_TYPE: return ::as_XMMRegister(index)->as_VMReg();
80     case STACK_TYPE: return VMRegImpl::stack2reg(index LP64_ONLY(* 2)); // numbering on x64 goes per 64-bits
81   }
82   return VMRegImpl::Bad();
83 }