Ralloc.cpp revision a8b91c52fd8a90b784835dfe1f8898035266c4dd 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/*
18 * This file contains codegen for the Mips ISA and is intended to be
19 * includes by:
20 *
21 *        Codegen-$(TARGET_ARCH_VARIANT).c
22 *
23 */
24
25/*
26 * Alloc a pair of core registers, or a double.  Low reg in low byte,
27 * high reg in next byte.
28 */
29int dvmCompilerAllocTypedTempPair(CompilationUnit *cUnit, bool fpHint,
30                                  int regClass)
31{
32    int highReg;
33    int lowReg;
34    int res = 0;
35
36#ifdef __mips_hard_float
37    if (((regClass == kAnyReg) && fpHint) || (regClass == kFPReg)) {
38        lowReg = dvmCompilerAllocTempDouble(cUnit);
39        highReg = lowReg + 1;
40        res = (lowReg & 0xff) | ((highReg & 0xff) << 8);
41        return res;
42    }
43#endif
44
45    lowReg = dvmCompilerAllocTemp(cUnit);
46    highReg = dvmCompilerAllocTemp(cUnit);
47    res = (lowReg & 0xff) | ((highReg & 0xff) << 8);
48    return res;
49}
50
51int dvmCompilerAllocTypedTemp(CompilationUnit *cUnit, bool fpHint, int regClass)
52{
53#ifdef __mips_hard_float
54    if (((regClass == kAnyReg) && fpHint) || (regClass == kFPReg))
55{
56        return dvmCompilerAllocTempFloat(cUnit);
57}
58#endif
59    return dvmCompilerAllocTemp(cUnit);
60}
61