Codegen.h revision bff121aa3e5d3c34caf837227cb00a46bf3f1966 
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 register alloction support and is intended to be
19 * included by:
20 *
21 *        Codegen-$(TARGET_ARCH_VARIANT).c
22 *
23 */
24
25#include "compiler/CompilerIR.h"
26#include "CalloutHelper.h"
27
28#if defined(_CODEGEN_C)
29/*
30 * loadConstant() sometimes needs to add a small imm to a pre-existing constant
31 */
32static ArmLIR *opRegImm(CompilationUnit *cUnit, OpKind op, int rDestSrc1,
33                        int value);
34static ArmLIR *opRegReg(CompilationUnit *cUnit, OpKind op, int rDestSrc1,
35                        int rSrc2);
36
37/* Forward decalraton the portable versions due to circular dependency */
38static bool genArithOpFloatPortable(CompilationUnit *cUnit, MIR *mir,
39                                    RegLocation rlDest, RegLocation rlSrc1,
40                                    RegLocation rlSrc2);
41
42static bool genArithOpDoublePortable(CompilationUnit *cUnit, MIR *mir,
43                                     RegLocation rlDest, RegLocation rlSrc1,
44                                     RegLocation rlSrc2);
45
46static bool genConversionPortable(CompilationUnit *cUnit, MIR *mir);
47
48#if defined(WITH_DEADLOCK_PREDICTION) || defined(WITH_MONITOR_TRACKING) || \
49    defined(__ARM_ARCH_5__)
50static void genMonitorPortable(CompilationUnit *cUnit, MIR *mir);
51#endif
52
53static void genInterpSingleStep(CompilationUnit *cUnit, MIR *mir);
54
55#endif
56
57
58#if defined(WITH_SELF_VERIFICATION)
59/* Self Verification memory instruction decoder */
60void dvmSelfVerificationMemOpDecode(int lr, int* sp);
61#endif
62
63/*
64 * Architecture-dependent register allocation routines implemented in
65 * Thumb[2]/Ralloc.c
66 */
67extern int dvmCompilerAllocTypedTempPair(CompilationUnit *cUnit,
68                                         bool fpHint, int regClass);
69
70extern int dvmCompilerAllocTypedTemp(CompilationUnit *cUnit, bool fpHint,
71                                     int regClass);
72
73extern ArmLIR* dvmCompilerRegCopyNoInsert(CompilationUnit *cUnit, int rDest,
74                                          int rSrc);
75
76extern ArmLIR* dvmCompilerRegCopy(CompilationUnit *cUnit, int rDest, int rSrc);
77
78extern void dvmCompilerRegCopyWide(CompilationUnit *cUnit, int destLo,
79                                   int destHi, int srcLo, int srcHi);
80
81extern void dvmCompilerSetupResourceMasks(ArmLIR *lir);
82
83extern void dvmCompilerFlushRegImpl(CompilationUnit *cUnit, int rBase,
84                                    int displacement, int rSrc, OpSize size);
85
86extern void dvmCompilerFlushRegWideImpl(CompilationUnit *cUnit, int rBase,
87                                        int displacement, int rSrcLo,
88                                        int rSrcHi);
89