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 */ 32 static ArmLIR *opRegImm(CompilationUnit *cUnit, OpKind op, int rDestSrc1, 33 int value); 34 static ArmLIR *opRegReg(CompilationUnit *cUnit, OpKind op, int rDestSrc1, 35 int rSrc2); 36 37 /* Forward decalraton the portable versions due to circular dependency */ 38 static bool genArithOpFloatPortable(CompilationUnit *cUnit, MIR *mir, 39 RegLocation rlDest, RegLocation rlSrc1, 40 RegLocation rlSrc2); 41 42 static bool genArithOpDoublePortable(CompilationUnit *cUnit, MIR *mir, 43 RegLocation rlDest, RegLocation rlSrc1, 44 RegLocation rlSrc2); 45 46 static bool genConversionPortable(CompilationUnit *cUnit, MIR *mir); 47 48 #if defined(WITH_DEADLOCK_PREDICTION) || defined(WITH_MONITOR_TRACKING) || \ 49 defined(__ARM_ARCH_5__) 50 static void genMonitorPortable(CompilationUnit *cUnit, MIR *mir); 51 #endif 52 53 static void genInterpSingleStep(CompilationUnit *cUnit, MIR *mir); 54 55 #endif 56 57 58 #if defined(WITH_SELF_VERIFICATION) 59 /* Self Verification memory instruction decoder */ 60 void dvmSelfVerificationMemOpDecode(int lr, int* sp); 61 #endif 62 63 /* 64 * Architecture-dependent register allocation routines implemented in 65 * Thumb[2]/Ralloc.c 66 */ 67 extern int dvmCompilerAllocTypedTempPair(CompilationUnit *cUnit, 68 bool fpHint, int regClass); 69 70 extern int dvmCompilerAllocTypedTemp(CompilationUnit *cUnit, bool fpHint, 71 int regClass); 72 73 extern ArmLIR* dvmCompilerRegCopyNoInsert(CompilationUnit *cUnit, int rDest, 74 int rSrc); 75 76 extern ArmLIR* dvmCompilerRegCopy(CompilationUnit *cUnit, int rDest, int rSrc); 77 78 extern void dvmCompilerRegCopyWide(CompilationUnit *cUnit, int destLo, 79 int destHi, int srcLo, int srcHi); 80 81 extern void dvmCompilerSetupResourceMasks(ArmLIR *lir); 82 83 extern void dvmCompilerFlushRegImpl(CompilationUnit *cUnit, int rBase, 84 int displacement, int rSrc, OpSize size); 85 86 extern void dvmCompilerFlushRegWideImpl(CompilationUnit *cUnit, int rBase, 87 int displacement, int rSrcLo, 88 int rSrcHi); 89