| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "object_utils.h" |
| |
| namespace art { |
| |
| #define DISPLAY_MISSING_TARGETS (cUnit->enableDebug & \ |
| (1 << kDebugDisplayMissingTargets)) |
| |
| const RegLocation badLoc = {kLocDalvikFrame, 0, 0, 0, 0, 0, 0, 0, |
| INVALID_REG, INVALID_REG, INVALID_SREG}; |
| |
| /* Mark register usage state and return long retloc */ |
| RegLocation oatGetReturnWide(CompilationUnit* cUnit, bool isDouble) |
| { |
| RegLocation gpr_res = LOC_C_RETURN_WIDE; |
| RegLocation fpr_res = LOC_C_RETURN_WIDE_DOUBLE; |
| RegLocation res = isDouble ? fpr_res : gpr_res; |
| oatClobber(cUnit, res.lowReg); |
| oatClobber(cUnit, res.highReg); |
| oatLockTemp(cUnit, res.lowReg); |
| oatLockTemp(cUnit, res.highReg); |
| oatMarkPair(cUnit, res.lowReg, res.highReg); |
| return res; |
| } |
| |
| RegLocation oatGetReturn(CompilationUnit* cUnit, bool isFloat) |
| { |
| RegLocation gpr_res = LOC_C_RETURN; |
| RegLocation fpr_res = LOC_C_RETURN_FLOAT; |
| RegLocation res = isFloat ? fpr_res : gpr_res; |
| oatClobber(cUnit, res.lowReg); |
| if (cUnit->instructionSet == kMips) { |
| oatMarkInUse(cUnit, res.lowReg); |
| } else { |
| oatLockTemp(cUnit, res.lowReg); |
| } |
| return res; |
| } |
| |
| void genInvoke(CompilationUnit* cUnit, BasicBlock* bb, MIR* mir, |
| InvokeType type, bool isRange) |
| { |
| if (genIntrinsic(cUnit, bb, mir, type, isRange)) { |
| return; |
| } |
| DecodedInstruction* dInsn = &mir->dalvikInsn; |
| InvokeType originalType = type; // avoiding mutation by ComputeInvokeInfo |
| int callState = 0; |
| LIR* nullCk; |
| LIR** pNullCk = NULL; |
| NextCallInsn nextCallInsn; |
| oatFlushAllRegs(cUnit); /* Everything to home location */ |
| // Explicit register usage |
| oatLockCallTemps(cUnit); |
| |
| OatCompilationUnit mUnit(cUnit->class_loader, cUnit->class_linker, |
| *cUnit->dex_file, *cUnit->dex_cache, |
| cUnit->code_item, cUnit->method_idx, |
| cUnit->access_flags); |
| |
| uint32_t dexMethodIdx = dInsn->vB; |
| int vtableIdx; |
| uintptr_t directCode; |
| uintptr_t directMethod; |
| bool skipThis; |
| bool fastPath = |
| cUnit->compiler->ComputeInvokeInfo(dexMethodIdx, &mUnit, type, |
| vtableIdx, directCode, |
| directMethod) |
| && !SLOW_INVOKE_PATH; |
| if (type == kInterface) { |
| nextCallInsn = fastPath ? nextInterfaceCallInsn |
| : nextInterfaceCallInsnWithAccessCheck; |
| skipThis = false; |
| } else if (type == kDirect) { |
| if (fastPath) { |
| pNullCk = &nullCk; |
| } |
| nextCallInsn = fastPath ? nextSDCallInsn : nextDirectCallInsnSP; |
| skipThis = false; |
| } else if (type == kStatic) { |
| nextCallInsn = fastPath ? nextSDCallInsn : nextStaticCallInsnSP; |
| skipThis = false; |
| } else if (type == kSuper) { |
| DCHECK(!fastPath); // Fast path is a direct call. |
| nextCallInsn = nextSuperCallInsnSP; |
| skipThis = false; |
| } else { |
| DCHECK_EQ(type, kVirtual); |
| nextCallInsn = fastPath ? nextVCallInsn : nextVCallInsnSP; |
| skipThis = fastPath; |
| } |
| if (!isRange) { |
| callState = genDalvikArgsNoRange(cUnit, mir, dInsn, callState, pNullCk, |
| nextCallInsn, dexMethodIdx, |
| vtableIdx, directCode, directMethod, |
| originalType, skipThis); |
| } else { |
| callState = genDalvikArgsRange(cUnit, mir, dInsn, callState, pNullCk, |
| nextCallInsn, dexMethodIdx, vtableIdx, |
| directCode, directMethod, originalType, |
| skipThis); |
| } |
| // Finish up any of the call sequence not interleaved in arg loading |
| while (callState >= 0) { |
| callState = nextCallInsn(cUnit, mir, callState, dexMethodIdx, |
| vtableIdx, directCode, directMethod, |
| originalType); |
| } |
| if (DISPLAY_MISSING_TARGETS) { |
| genShowTarget(cUnit); |
| } |
| #if !defined(TARGET_X86) |
| opReg(cUnit, kOpBlx, rINVOKE_TGT); |
| #else |
| if (fastPath && type != kInterface) { |
| opMem(cUnit, kOpBlx, rARG0, Method::GetCodeOffset().Int32Value()); |
| } else { |
| int trampoline = 0; |
| switch (type) { |
| case kInterface: |
| trampoline = fastPath ? ENTRYPOINT_OFFSET(pInvokeInterfaceTrampoline) |
| : ENTRYPOINT_OFFSET(pInvokeInterfaceTrampolineWithAccessCheck); |
| break; |
| case kDirect: |
| trampoline = ENTRYPOINT_OFFSET(pInvokeDirectTrampolineWithAccessCheck); |
| break; |
| case kStatic: |
| trampoline = ENTRYPOINT_OFFSET(pInvokeStaticTrampolineWithAccessCheck); |
| break; |
| case kSuper: |
| trampoline = ENTRYPOINT_OFFSET(pInvokeSuperTrampolineWithAccessCheck); |
| break; |
| case kVirtual: |
| trampoline = ENTRYPOINT_OFFSET(pInvokeVirtualTrampolineWithAccessCheck); |
| break; |
| default: |
| LOG(FATAL) << "Unexpected invoke type"; |
| } |
| opThreadMem(cUnit, kOpBlx, trampoline); |
| } |
| #endif |
| |
| oatClobberCalleeSave(cUnit); |
| } |
| |
| /* |
| * Target-independent code generation. Use only high-level |
| * load/store utilities here, or target-dependent genXX() handlers |
| * when necessary. |
| */ |
| bool compileDalvikInstruction(CompilationUnit* cUnit, MIR* mir, |
| BasicBlock* bb, LIR* labelList) |
| { |
| bool res = false; // Assume success |
| RegLocation rlSrc[3]; |
| RegLocation rlDest = badLoc; |
| RegLocation rlResult = badLoc; |
| Instruction::Code opcode = mir->dalvikInsn.opcode; |
| int optFlags = mir->optimizationFlags; |
| uint32_t vA = mir->dalvikInsn.vA; |
| uint32_t vB = mir->dalvikInsn.vB; |
| uint32_t vC = mir->dalvikInsn.vC; |
| |
| /* Prep Src and Dest locations */ |
| int nextSreg = 0; |
| int nextLoc = 0; |
| int attrs = oatDataFlowAttributes[opcode]; |
| rlSrc[0] = rlSrc[1] = rlSrc[2] = badLoc; |
| if (attrs & DF_UA) { |
| if (attrs & DF_A_WIDE) { |
| rlSrc[nextLoc++] = oatGetSrcWide(cUnit, mir, nextSreg, nextSreg + 1); |
| nextSreg+= 2; |
| } else { |
| rlSrc[nextLoc++] = oatGetSrc(cUnit, mir, nextSreg); |
| nextSreg++; |
| } |
| } |
| if (attrs & DF_UB) { |
| if (attrs & DF_B_WIDE) { |
| rlSrc[nextLoc++] = oatGetSrcWide(cUnit, mir, nextSreg, nextSreg + 1); |
| nextSreg+= 2; |
| } else { |
| rlSrc[nextLoc++] = oatGetSrc(cUnit, mir, nextSreg); |
| nextSreg++; |
| } |
| } |
| if (attrs & DF_UC) { |
| if (attrs & DF_C_WIDE) { |
| rlSrc[nextLoc++] = oatGetSrcWide(cUnit, mir, nextSreg, nextSreg + 1); |
| } else { |
| rlSrc[nextLoc++] = oatGetSrc(cUnit, mir, nextSreg); |
| } |
| } |
| if (attrs & DF_DA) { |
| if (attrs & DF_A_WIDE) { |
| rlDest = oatGetDestWide(cUnit, mir, 0, 1); |
| } else { |
| rlDest = oatGetDest(cUnit, mir, 0); |
| } |
| } |
| switch (opcode) { |
| case Instruction::NOP: |
| break; |
| |
| case Instruction::MOVE_EXCEPTION: { |
| int exOffset = Thread::ExceptionOffset().Int32Value(); |
| rlResult = oatEvalLoc(cUnit, rlDest, kCoreReg, true); |
| #if defined(TARGET_X86) |
| newLIR2(cUnit, kX86Mov32RT, rlResult.lowReg, exOffset); |
| newLIR2(cUnit, kX86Mov32TI, exOffset, 0); |
| #else |
| int resetReg = oatAllocTemp(cUnit); |
| loadWordDisp(cUnit, rSELF, exOffset, rlResult.lowReg); |
| loadConstant(cUnit, resetReg, 0); |
| storeWordDisp(cUnit, rSELF, exOffset, resetReg); |
| oatFreeTemp(cUnit, resetReg); |
| #endif |
| storeValue(cUnit, rlDest, rlResult); |
| break; |
| } |
| case Instruction::RETURN_VOID: |
| if (!cUnit->attrs & METHOD_IS_LEAF) { |
| genSuspendTest(cUnit, optFlags); |
| } |
| break; |
| |
| case Instruction::RETURN: |
| case Instruction::RETURN_OBJECT: |
| if (!cUnit->attrs & METHOD_IS_LEAF) { |
| genSuspendTest(cUnit, optFlags); |
| } |
| storeValue(cUnit, oatGetReturn(cUnit, cUnit->shorty[0] == 'F'), rlSrc[0]); |
| break; |
| |
| case Instruction::RETURN_WIDE: |
| if (!cUnit->attrs & METHOD_IS_LEAF) { |
| genSuspendTest(cUnit, optFlags); |
| } |
| storeValueWide(cUnit, oatGetReturnWide(cUnit, |
| cUnit->shorty[0] == 'D'), rlSrc[0]); |
| break; |
| |
| case Instruction::MOVE_RESULT_WIDE: |
| if (optFlags & MIR_INLINED) |
| break; // Nop - combined w/ previous invoke |
| storeValueWide(cUnit, rlDest, oatGetReturnWide(cUnit, rlDest.fp)); |
| break; |
| |
| case Instruction::MOVE_RESULT: |
| case Instruction::MOVE_RESULT_OBJECT: |
| if (optFlags & MIR_INLINED) |
| break; // Nop - combined w/ previous invoke |
| storeValue(cUnit, rlDest, oatGetReturn(cUnit, rlDest.fp)); |
| break; |
| |
| case Instruction::MOVE: |
| case Instruction::MOVE_OBJECT: |
| case Instruction::MOVE_16: |
| case Instruction::MOVE_OBJECT_16: |
| case Instruction::MOVE_FROM16: |
| case Instruction::MOVE_OBJECT_FROM16: |
| storeValue(cUnit, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::MOVE_WIDE: |
| case Instruction::MOVE_WIDE_16: |
| case Instruction::MOVE_WIDE_FROM16: |
| storeValueWide(cUnit, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::CONST: |
| case Instruction::CONST_4: |
| case Instruction::CONST_16: |
| rlResult = oatEvalLoc(cUnit, rlDest, kAnyReg, true); |
| loadConstantNoClobber(cUnit, rlResult.lowReg, vB); |
| storeValue(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::CONST_HIGH16: |
| rlResult = oatEvalLoc(cUnit, rlDest, kAnyReg, true); |
| loadConstantNoClobber(cUnit, rlResult.lowReg, vB << 16); |
| storeValue(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::CONST_WIDE_16: |
| case Instruction::CONST_WIDE_32: |
| rlResult = oatEvalLoc(cUnit, rlDest, kAnyReg, true); |
| loadConstantValueWide(cUnit, rlResult.lowReg, rlResult.highReg, vB, |
| (vB & 0x80000000) ? -1 : 0); |
| storeValueWide(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::CONST_WIDE: |
| rlResult = oatEvalLoc(cUnit, rlDest, kAnyReg, true); |
| loadConstantValueWide(cUnit, rlResult.lowReg, rlResult.highReg, |
| mir->dalvikInsn.vB_wide & 0xffffffff, |
| (mir->dalvikInsn.vB_wide >> 32) & 0xffffffff); |
| storeValueWide(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::CONST_WIDE_HIGH16: |
| rlResult = oatEvalLoc(cUnit, rlDest, kAnyReg, true); |
| loadConstantValueWide(cUnit, rlResult.lowReg, rlResult.highReg, |
| 0, vB << 16); |
| storeValueWide(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::MONITOR_ENTER: |
| genMonitorEnter(cUnit, optFlags, rlSrc[0]); |
| break; |
| |
| case Instruction::MONITOR_EXIT: |
| genMonitorExit(cUnit, optFlags, rlSrc[0]); |
| break; |
| |
| case Instruction::CHECK_CAST: |
| genCheckCast(cUnit, vB, rlSrc[0]); |
| break; |
| |
| case Instruction::INSTANCE_OF: |
| genInstanceof(cUnit, vC, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::NEW_INSTANCE: |
| genNewInstance(cUnit, vB, rlDest); |
| break; |
| |
| case Instruction::THROW: |
| genThrow(cUnit, rlSrc[0]); |
| break; |
| |
| case Instruction::THROW_VERIFICATION_ERROR: |
| genThrowVerificationError(cUnit, vA, vB); |
| break; |
| |
| case Instruction::ARRAY_LENGTH: |
| int lenOffset; |
| lenOffset = Array::LengthOffset().Int32Value(); |
| rlSrc[0] = loadValue(cUnit, rlSrc[0], kCoreReg); |
| genNullCheck(cUnit, rlSrc[0].sRegLow, rlSrc[0].lowReg, optFlags); |
| rlResult = oatEvalLoc(cUnit, rlDest, kCoreReg, true); |
| loadWordDisp(cUnit, rlSrc[0].lowReg, lenOffset, rlResult.lowReg); |
| storeValue(cUnit, rlDest, rlResult); |
| break; |
| |
| case Instruction::CONST_STRING: |
| case Instruction::CONST_STRING_JUMBO: |
| genConstString(cUnit, vB, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::CONST_CLASS: |
| genConstClass(cUnit, vB, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::FILL_ARRAY_DATA: |
| genFillArrayData(cUnit, vB, rlSrc[0]); |
| break; |
| |
| case Instruction::FILLED_NEW_ARRAY: |
| genFilledNewArray(cUnit, mir, false /* not range */); |
| break; |
| |
| case Instruction::FILLED_NEW_ARRAY_RANGE: |
| genFilledNewArray(cUnit, mir, true /* range */); |
| break; |
| |
| case Instruction::NEW_ARRAY: |
| genNewArray(cUnit, vC, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::GOTO: |
| case Instruction::GOTO_16: |
| case Instruction::GOTO_32: |
| if (bb->taken->startOffset <= mir->offset) { |
| genSuspendTestAndBranch(cUnit, optFlags, &labelList[bb->taken->id]); |
| } else { |
| opUnconditionalBranch(cUnit, &labelList[bb->taken->id]); |
| } |
| break; |
| |
| case Instruction::PACKED_SWITCH: |
| genPackedSwitch(cUnit, vB, rlSrc[0]); |
| break; |
| |
| case Instruction::SPARSE_SWITCH: |
| genSparseSwitch(cUnit, vB, rlSrc[0], labelList); |
| break; |
| |
| case Instruction::CMPL_FLOAT: |
| case Instruction::CMPG_FLOAT: |
| case Instruction::CMPL_DOUBLE: |
| case Instruction::CMPG_DOUBLE: |
| res = genCmpFP(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::CMP_LONG: |
| genCmpLong(cUnit, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::IF_EQ: |
| case Instruction::IF_NE: |
| case Instruction::IF_LT: |
| case Instruction::IF_GE: |
| case Instruction::IF_GT: |
| case Instruction::IF_LE: { |
| bool backwardBranch; |
| backwardBranch = (bb->taken->startOffset <= mir->offset); |
| if (backwardBranch) { |
| genSuspendTest(cUnit, optFlags); |
| } |
| genCompareAndBranch(cUnit, bb, opcode, rlSrc[0], rlSrc[1], labelList); |
| break; |
| } |
| |
| case Instruction::IF_EQZ: |
| case Instruction::IF_NEZ: |
| case Instruction::IF_LTZ: |
| case Instruction::IF_GEZ: |
| case Instruction::IF_GTZ: |
| case Instruction::IF_LEZ: { |
| bool backwardBranch; |
| backwardBranch = (bb->taken->startOffset <= mir->offset); |
| if (backwardBranch) { |
| genSuspendTest(cUnit, optFlags); |
| } |
| genCompareZeroAndBranch(cUnit, bb, opcode, rlSrc[0], labelList); |
| break; |
| } |
| |
| case Instruction::AGET_WIDE: |
| genArrayGet(cUnit, optFlags, kLong, rlSrc[0], rlSrc[1], rlDest, 3); |
| break; |
| case Instruction::AGET: |
| case Instruction::AGET_OBJECT: |
| genArrayGet(cUnit, optFlags, kWord, rlSrc[0], rlSrc[1], rlDest, 2); |
| break; |
| case Instruction::AGET_BOOLEAN: |
| genArrayGet(cUnit, optFlags, kUnsignedByte, rlSrc[0], rlSrc[1], rlDest, 0); |
| break; |
| case Instruction::AGET_BYTE: |
| genArrayGet(cUnit, optFlags, kSignedByte, rlSrc[0], rlSrc[1], rlDest, 0); |
| break; |
| case Instruction::AGET_CHAR: |
| genArrayGet(cUnit, optFlags, kUnsignedHalf, rlSrc[0], rlSrc[1], rlDest, 1); |
| break; |
| case Instruction::AGET_SHORT: |
| genArrayGet(cUnit, optFlags, kSignedHalf, rlSrc[0], rlSrc[1], rlDest, 1); |
| break; |
| case Instruction::APUT_WIDE: |
| genArrayPut(cUnit, optFlags, kLong, rlSrc[1], rlSrc[2], rlSrc[0], 3); |
| break; |
| case Instruction::APUT: |
| genArrayPut(cUnit, optFlags, kWord, rlSrc[1], rlSrc[2], rlSrc[0], 2); |
| break; |
| case Instruction::APUT_OBJECT: |
| genArrayObjPut(cUnit, optFlags, rlSrc[1], rlSrc[2], rlSrc[0], 2); |
| break; |
| case Instruction::APUT_SHORT: |
| case Instruction::APUT_CHAR: |
| genArrayPut(cUnit, optFlags, kUnsignedHalf, rlSrc[1], rlSrc[2], rlSrc[0], 1); |
| break; |
| case Instruction::APUT_BYTE: |
| case Instruction::APUT_BOOLEAN: |
| genArrayPut(cUnit, optFlags, kUnsignedByte, rlSrc[1], rlSrc[2], |
| rlSrc[0], 0); |
| break; |
| |
| case Instruction::IGET_OBJECT: |
| //case Instruction::IGET_OBJECT_VOLATILE: |
| genIGet(cUnit, vC, optFlags, kWord, rlDest, rlSrc[0], false, true); |
| break; |
| |
| case Instruction::IGET_WIDE: |
| //case Instruction::IGET_WIDE_VOLATILE: |
| genIGet(cUnit, vC, optFlags, kLong, rlDest, rlSrc[0], true, false); |
| break; |
| |
| case Instruction::IGET: |
| //case Instruction::IGET_VOLATILE: |
| genIGet(cUnit, vC, optFlags, kWord, rlDest, rlSrc[0], false, false); |
| break; |
| |
| case Instruction::IGET_CHAR: |
| genIGet(cUnit, vC, optFlags, kUnsignedHalf, rlDest, rlSrc[0], false, false); |
| break; |
| |
| case Instruction::IGET_SHORT: |
| genIGet(cUnit, vC, optFlags, kSignedHalf, rlDest, rlSrc[0], false, false); |
| break; |
| |
| case Instruction::IGET_BOOLEAN: |
| case Instruction::IGET_BYTE: |
| genIGet(cUnit, vC, optFlags, kUnsignedByte, rlDest, rlSrc[0], false, false); |
| break; |
| |
| case Instruction::IPUT_WIDE: |
| //case Instruction::IPUT_WIDE_VOLATILE: |
| genIPut(cUnit, vC, optFlags, kLong, rlSrc[0], rlSrc[1], true, false); |
| break; |
| |
| case Instruction::IPUT_OBJECT: |
| //case Instruction::IPUT_OBJECT_VOLATILE: |
| genIPut(cUnit, vC, optFlags, kWord, rlSrc[0], rlSrc[1], false, true); |
| break; |
| |
| case Instruction::IPUT: |
| //case Instruction::IPUT_VOLATILE: |
| genIPut(cUnit, vC, optFlags, kWord, rlSrc[0], rlSrc[1], false, false); |
| break; |
| |
| case Instruction::IPUT_BOOLEAN: |
| case Instruction::IPUT_BYTE: |
| genIPut(cUnit, vC, optFlags, kUnsignedByte, rlSrc[0], rlSrc[1], false, false); |
| break; |
| |
| case Instruction::IPUT_CHAR: |
| genIPut(cUnit, vC, optFlags, kUnsignedHalf, rlSrc[0], rlSrc[1], false, false); |
| break; |
| |
| case Instruction::IPUT_SHORT: |
| genIPut(cUnit, vC, optFlags, kSignedHalf, rlSrc[0], rlSrc[1], false, false); |
| break; |
| |
| case Instruction::SGET_OBJECT: |
| genSget(cUnit, vB, rlDest, false, true); |
| break; |
| case Instruction::SGET: |
| case Instruction::SGET_BOOLEAN: |
| case Instruction::SGET_BYTE: |
| case Instruction::SGET_CHAR: |
| case Instruction::SGET_SHORT: |
| genSget(cUnit, vB, rlDest, false, false); |
| break; |
| |
| case Instruction::SGET_WIDE: |
| genSget(cUnit, vB, rlDest, true, false); |
| break; |
| |
| case Instruction::SPUT_OBJECT: |
| genSput(cUnit, vB, rlSrc[0], false, true); |
| break; |
| |
| case Instruction::SPUT: |
| case Instruction::SPUT_BOOLEAN: |
| case Instruction::SPUT_BYTE: |
| case Instruction::SPUT_CHAR: |
| case Instruction::SPUT_SHORT: |
| genSput(cUnit, vB, rlSrc[0], false, false); |
| break; |
| |
| case Instruction::SPUT_WIDE: |
| genSput(cUnit, vB, rlSrc[0], true, false); |
| break; |
| |
| case Instruction::INVOKE_STATIC_RANGE: |
| genInvoke(cUnit, bb, mir, kStatic, true /*range*/); |
| break; |
| case Instruction::INVOKE_STATIC: |
| genInvoke(cUnit, bb, mir, kStatic, false /*range*/); |
| break; |
| |
| case Instruction::INVOKE_DIRECT: |
| genInvoke(cUnit, bb, mir, kDirect, false /*range*/); |
| break; |
| case Instruction::INVOKE_DIRECT_RANGE: |
| genInvoke(cUnit, bb, mir, kDirect, true /*range*/); |
| break; |
| |
| case Instruction::INVOKE_VIRTUAL: |
| genInvoke(cUnit, bb, mir, kVirtual, false /*range*/); |
| break; |
| case Instruction::INVOKE_VIRTUAL_RANGE: |
| genInvoke(cUnit, bb, mir, kVirtual, true /*range*/); |
| break; |
| |
| case Instruction::INVOKE_SUPER: |
| genInvoke(cUnit, bb, mir, kSuper, false /*range*/); |
| break; |
| case Instruction::INVOKE_SUPER_RANGE: |
| genInvoke(cUnit, bb, mir, kSuper, true /*range*/); |
| break; |
| |
| case Instruction::INVOKE_INTERFACE: |
| genInvoke(cUnit, bb, mir, kInterface, false /*range*/); |
| break; |
| case Instruction::INVOKE_INTERFACE_RANGE: |
| genInvoke(cUnit, bb, mir, kInterface, true /*range*/); |
| break; |
| |
| case Instruction::NEG_INT: |
| case Instruction::NOT_INT: |
| res = genArithOpInt(cUnit, opcode, rlDest, rlSrc[0], rlSrc[0]); |
| break; |
| |
| case Instruction::NEG_LONG: |
| case Instruction::NOT_LONG: |
| res = genArithOpLong(cUnit, opcode, rlDest, rlSrc[0], rlSrc[0]); |
| break; |
| |
| case Instruction::NEG_FLOAT: |
| res = genArithOpFloat(cUnit, opcode, rlDest, rlSrc[0], rlSrc[0]); |
| break; |
| |
| case Instruction::NEG_DOUBLE: |
| res = genArithOpDouble(cUnit, opcode, rlDest, rlSrc[0], rlSrc[0]); |
| break; |
| |
| case Instruction::INT_TO_LONG: |
| genIntToLong(cUnit, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::LONG_TO_INT: |
| rlSrc[0] = oatUpdateLocWide(cUnit, rlSrc[0]); |
| rlSrc[0] = oatWideToNarrow(cUnit, rlSrc[0]); |
| storeValue(cUnit, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::INT_TO_BYTE: |
| case Instruction::INT_TO_SHORT: |
| case Instruction::INT_TO_CHAR: |
| genIntNarrowing(cUnit, opcode, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::INT_TO_FLOAT: |
| case Instruction::INT_TO_DOUBLE: |
| case Instruction::LONG_TO_FLOAT: |
| case Instruction::LONG_TO_DOUBLE: |
| case Instruction::FLOAT_TO_INT: |
| case Instruction::FLOAT_TO_LONG: |
| case Instruction::FLOAT_TO_DOUBLE: |
| case Instruction::DOUBLE_TO_INT: |
| case Instruction::DOUBLE_TO_LONG: |
| case Instruction::DOUBLE_TO_FLOAT: |
| genConversion(cUnit, opcode, rlDest, rlSrc[0]); |
| break; |
| |
| case Instruction::ADD_INT: |
| case Instruction::SUB_INT: |
| case Instruction::MUL_INT: |
| case Instruction::DIV_INT: |
| case Instruction::REM_INT: |
| case Instruction::AND_INT: |
| case Instruction::OR_INT: |
| case Instruction::XOR_INT: |
| case Instruction::SHL_INT: |
| case Instruction::SHR_INT: |
| case Instruction::USHR_INT: |
| case Instruction::ADD_INT_2ADDR: |
| case Instruction::SUB_INT_2ADDR: |
| case Instruction::MUL_INT_2ADDR: |
| case Instruction::DIV_INT_2ADDR: |
| case Instruction::REM_INT_2ADDR: |
| case Instruction::AND_INT_2ADDR: |
| case Instruction::OR_INT_2ADDR: |
| case Instruction::XOR_INT_2ADDR: |
| case Instruction::SHL_INT_2ADDR: |
| case Instruction::SHR_INT_2ADDR: |
| case Instruction::USHR_INT_2ADDR: |
| genArithOpInt(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::ADD_LONG: |
| case Instruction::SUB_LONG: |
| case Instruction::MUL_LONG: |
| case Instruction::DIV_LONG: |
| case Instruction::REM_LONG: |
| case Instruction::AND_LONG: |
| case Instruction::OR_LONG: |
| case Instruction::XOR_LONG: |
| case Instruction::ADD_LONG_2ADDR: |
| case Instruction::SUB_LONG_2ADDR: |
| case Instruction::MUL_LONG_2ADDR: |
| case Instruction::DIV_LONG_2ADDR: |
| case Instruction::REM_LONG_2ADDR: |
| case Instruction::AND_LONG_2ADDR: |
| case Instruction::OR_LONG_2ADDR: |
| case Instruction::XOR_LONG_2ADDR: |
| genArithOpLong(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::SHL_LONG: |
| case Instruction::SHR_LONG: |
| case Instruction::USHR_LONG: |
| case Instruction::SHL_LONG_2ADDR: |
| case Instruction::SHR_LONG_2ADDR: |
| case Instruction::USHR_LONG_2ADDR: |
| genShiftOpLong(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::ADD_FLOAT: |
| case Instruction::SUB_FLOAT: |
| case Instruction::MUL_FLOAT: |
| case Instruction::DIV_FLOAT: |
| case Instruction::REM_FLOAT: |
| case Instruction::ADD_FLOAT_2ADDR: |
| case Instruction::SUB_FLOAT_2ADDR: |
| case Instruction::MUL_FLOAT_2ADDR: |
| case Instruction::DIV_FLOAT_2ADDR: |
| case Instruction::REM_FLOAT_2ADDR: |
| genArithOpFloat(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::ADD_DOUBLE: |
| case Instruction::SUB_DOUBLE: |
| case Instruction::MUL_DOUBLE: |
| case Instruction::DIV_DOUBLE: |
| case Instruction::REM_DOUBLE: |
| case Instruction::ADD_DOUBLE_2ADDR: |
| case Instruction::SUB_DOUBLE_2ADDR: |
| case Instruction::MUL_DOUBLE_2ADDR: |
| case Instruction::DIV_DOUBLE_2ADDR: |
| case Instruction::REM_DOUBLE_2ADDR: |
| genArithOpDouble(cUnit, opcode, rlDest, rlSrc[0], rlSrc[1]); |
| break; |
| |
| case Instruction::RSUB_INT: |
| case Instruction::ADD_INT_LIT16: |
| case Instruction::MUL_INT_LIT16: |
| case Instruction::DIV_INT_LIT16: |
| case Instruction::REM_INT_LIT16: |
| case Instruction::AND_INT_LIT16: |
| case Instruction::OR_INT_LIT16: |
| case Instruction::XOR_INT_LIT16: |
| case Instruction::ADD_INT_LIT8: |
| case Instruction::RSUB_INT_LIT8: |
| case Instruction::MUL_INT_LIT8: |
| case Instruction::DIV_INT_LIT8: |
| case Instruction::REM_INT_LIT8: |
| case Instruction::AND_INT_LIT8: |
| case Instruction::OR_INT_LIT8: |
| case Instruction::XOR_INT_LIT8: |
| case Instruction::SHL_INT_LIT8: |
| case Instruction::SHR_INT_LIT8: |
| case Instruction::USHR_INT_LIT8: |
| genArithOpIntLit(cUnit, opcode, rlDest, rlSrc[0], vC); |
| break; |
| |
| default: |
| res = true; |
| } |
| return res; |
| } |
| |
| const char* extendedMIROpNames[kMirOpLast - kMirOpFirst] = { |
| "kMirOpPhi", |
| "kMirOpCopy", |
| "kMirFusedCmplFloat", |
| "kMirFusedCmpgFloat", |
| "kMirFusedCmplDouble", |
| "kMirFusedCmpgDouble", |
| "kMirFusedCmpLong", |
| "kMirNop", |
| "kMirOpNullNRangeUpCheck", |
| "kMirOpNullNRangeDownCheck", |
| "kMirOpLowerBound", |
| }; |
| |
| /* Extended MIR instructions like PHI */ |
| void handleExtendedMethodMIR(CompilationUnit* cUnit, BasicBlock* bb, MIR* mir) |
| { |
| int opOffset = mir->dalvikInsn.opcode - kMirOpFirst; |
| char* msg = NULL; |
| if (cUnit->printMe) { |
| msg = (char*)oatNew(cUnit, strlen(extendedMIROpNames[opOffset]) + 1, |
| false, kAllocDebugInfo); |
| strcpy(msg, extendedMIROpNames[opOffset]); |
| } |
| LIR* op = newLIR1(cUnit, kPseudoExtended, (int) msg); |
| |
| switch ((ExtendedMIROpcode)mir->dalvikInsn.opcode) { |
| case kMirOpPhi: { |
| char* ssaString = NULL; |
| if (cUnit->printMe) { |
| ssaString = oatGetSSAString(cUnit, mir->ssaRep); |
| } |
| op->flags.isNop = true; |
| newLIR1(cUnit, kPseudoSSARep, (int) ssaString); |
| break; |
| } |
| case kMirOpCopy: { |
| RegLocation rlSrc = oatGetSrc(cUnit, mir, 0); |
| RegLocation rlDest = oatGetDest(cUnit, mir, 0); |
| storeValue(cUnit, rlDest, rlSrc); |
| break; |
| } |
| #if defined(TARGET_ARM) |
| case kMirOpFusedCmplFloat: |
| genFusedFPCmpBranch(cUnit, bb, mir, false /*gt bias*/, false /*double*/); |
| break; |
| case kMirOpFusedCmpgFloat: |
| genFusedFPCmpBranch(cUnit, bb, mir, true /*gt bias*/, false /*double*/); |
| break; |
| case kMirOpFusedCmplDouble: |
| genFusedFPCmpBranch(cUnit, bb, mir, false /*gt bias*/, true /*double*/); |
| break; |
| case kMirOpFusedCmpgDouble: |
| genFusedFPCmpBranch(cUnit, bb, mir, true /*gt bias*/, true /*double*/); |
| break; |
| case kMirOpFusedCmpLong: |
| genFusedLongCmpBranch(cUnit, bb, mir); |
| break; |
| #endif |
| default: |
| break; |
| } |
| } |
| |
| /* Handle the content in each basic block */ |
| bool methodBlockCodeGen(CompilationUnit* cUnit, BasicBlock* bb) |
| { |
| MIR* mir; |
| LIR* labelList = (LIR*) cUnit->blockLabelList; |
| int blockId = bb->id; |
| |
| cUnit->curBlock = bb; |
| labelList[blockId].operands[0] = bb->startOffset; |
| |
| /* Insert the block label */ |
| labelList[blockId].opcode = kPseudoNormalBlockLabel; |
| oatAppendLIR(cUnit, (LIR*) &labelList[blockId]); |
| |
| /* Free temp registers and reset redundant store tracking */ |
| oatResetRegPool(cUnit); |
| oatResetDefTracking(cUnit); |
| |
| /* |
| * If control reached us from our immediate predecessor via |
| * fallthrough and we have no other incoming arcs we can |
| * reuse existing liveness. Otherwise, reset. |
| */ |
| if (!bb->fallThroughTarget || bb->predecessors->numUsed != 1) { |
| oatClobberAllRegs(cUnit); |
| } |
| |
| LIR* headLIR = NULL; |
| |
| if (bb->blockType == kEntryBlock) { |
| genEntrySequence(cUnit, bb); |
| } else if (bb->blockType == kExitBlock) { |
| genExitSequence(cUnit, bb); |
| } |
| |
| for (mir = bb->firstMIRInsn; mir; mir = mir->next) { |
| |
| oatResetRegPool(cUnit); |
| if (cUnit->disableOpt & (1 << kTrackLiveTemps)) { |
| oatClobberAllRegs(cUnit); |
| } |
| |
| if (cUnit->disableOpt & (1 << kSuppressLoads)) { |
| oatResetDefTracking(cUnit); |
| } |
| |
| #ifndef NDEBUG |
| /* Reset temp tracking sanity check */ |
| cUnit->liveSReg = INVALID_SREG; |
| #endif |
| |
| cUnit->currentDalvikOffset = mir->offset; |
| |
| Instruction::Code dalvikOpcode = mir->dalvikInsn.opcode; |
| Instruction::Format dalvikFormat = Instruction::FormatOf(dalvikOpcode); |
| |
| LIR* boundaryLIR; |
| |
| /* Mark the beginning of a Dalvik instruction for line tracking */ |
| char* instStr = cUnit->printMe ? |
| oatGetDalvikDisassembly(cUnit, mir->dalvikInsn, "") : NULL; |
| boundaryLIR = newLIR1(cUnit, kPseudoDalvikByteCodeBoundary, |
| (intptr_t) instStr); |
| cUnit->boundaryMap.Overwrite(mir->offset, boundaryLIR); |
| /* Remember the first LIR for this block */ |
| if (headLIR == NULL) { |
| headLIR = boundaryLIR; |
| /* Set the first boundaryLIR as a scheduling barrier */ |
| headLIR->defMask = ENCODE_ALL; |
| } |
| |
| /* If we're compiling for the debugger, generate an update callout */ |
| if (cUnit->genDebugger) { |
| genDebuggerUpdate(cUnit, mir->offset); |
| } |
| |
| /* Don't generate the SSA annotation unless verbose mode is on */ |
| if (cUnit->printMe && mir->ssaRep) { |
| char* ssaString = oatGetSSAString(cUnit, mir->ssaRep); |
| newLIR1(cUnit, kPseudoSSARep, (int) ssaString); |
| } |
| |
| if ((int)mir->dalvikInsn.opcode >= (int)kMirOpFirst) { |
| handleExtendedMethodMIR(cUnit, bb, mir); |
| continue; |
| } |
| |
| bool notHandled = compileDalvikInstruction(cUnit, mir, bb, labelList); |
| if (notHandled) { |
| LOG(FATAL) << StringPrintf("%#06x: Opcode %#x (%s) / Fmt %d not handled", |
| mir->offset, dalvikOpcode, |
| Instruction::Name(dalvikOpcode), dalvikFormat); |
| |
| } |
| } |
| |
| if (headLIR) { |
| /* |
| * Eliminate redundant loads/stores and delay stores into later |
| * slots |
| */ |
| oatApplyLocalOptimizations(cUnit, (LIR*) headLIR, cUnit->lastLIRInsn); |
| |
| /* |
| * Generate an unconditional branch to the fallthrough block. |
| */ |
| if (bb->fallThrough) { |
| opUnconditionalBranch(cUnit, &labelList[bb->fallThrough->id]); |
| } |
| } |
| return false; |
| } |
| |
| /* Set basic block labels */ |
| bool labelBlocks(CompilationUnit* cUnit, BasicBlock* bb) |
| { |
| LIR* labelList = (LIR*) cUnit->blockLabelList; |
| int blockId = bb->id; |
| |
| cUnit->curBlock = bb; |
| labelList[blockId].operands[0] = bb->startOffset; |
| |
| /* Insert the block label */ |
| labelList[blockId].opcode = kPseudoNormalBlockLabel; |
| return false; |
| } |
| |
| void oatSpecialMIR2LIR(CompilationUnit* cUnit, SpecialCaseHandler specialCase) |
| { |
| /* Find the first DalvikByteCode block */ |
| int numReachableBlocks = cUnit->numReachableBlocks; |
| const GrowableList *blockList = &cUnit->blockList; |
| BasicBlock*bb = NULL; |
| for (int idx = 0; idx < numReachableBlocks; idx++) { |
| int dfsIndex = cUnit->dfsOrder.elemList[idx]; |
| bb = (BasicBlock*)oatGrowableListGetElement(blockList, dfsIndex); |
| if (bb->blockType == kDalvikByteCode) { |
| break; |
| } |
| } |
| if (bb == NULL) { |
| return; |
| } |
| DCHECK_EQ(bb->startOffset, 0); |
| DCHECK(bb->firstMIRInsn != 0); |
| |
| /* Get the first instruction */ |
| MIR* mir = bb->firstMIRInsn; |
| |
| /* Free temp registers and reset redundant store tracking */ |
| oatResetRegPool(cUnit); |
| oatResetDefTracking(cUnit); |
| oatClobberAllRegs(cUnit); |
| |
| genSpecialCase(cUnit, bb, mir, specialCase); |
| } |
| |
| void oatMethodMIR2LIR(CompilationUnit* cUnit) |
| { |
| /* Used to hold the labels of each block */ |
| cUnit->blockLabelList = |
| (void *) oatNew(cUnit, sizeof(LIR) * cUnit->numBlocks, true, kAllocLIR); |
| |
| oatDataFlowAnalysisDispatcher(cUnit, methodBlockCodeGen, |
| kPreOrderDFSTraversal, false /* Iterative */); |
| |
| handleSuspendLaunchpads(cUnit); |
| |
| handleThrowLaunchpads(cUnit); |
| |
| handleIntrinsicLaunchpads(cUnit); |
| |
| if (!(cUnit->disableOpt & (1 << kSafeOptimizations))) { |
| removeRedundantBranches(cUnit); |
| } |
| } |
| |
| /* Needed by the ld/st optmizatons */ |
| LIR* oatRegCopyNoInsert(CompilationUnit* cUnit, int rDest, int rSrc) |
| { |
| return opRegCopyNoInsert(cUnit, rDest, rSrc); |
| } |
| |
| /* Needed by the register allocator */ |
| void oatRegCopy(CompilationUnit* cUnit, int rDest, int rSrc) |
| { |
| opRegCopy(cUnit, rDest, rSrc); |
| } |
| |
| /* Needed by the register allocator */ |
| void oatRegCopyWide(CompilationUnit* cUnit, int destLo, int destHi, |
| int srcLo, int srcHi) |
| { |
| opRegCopyWide(cUnit, destLo, destHi, srcLo, srcHi); |
| } |
| |
| void oatFlushRegImpl(CompilationUnit* cUnit, int rBase, |
| int displacement, int rSrc, OpSize size) |
| { |
| storeBaseDisp(cUnit, rBase, displacement, rSrc, size); |
| } |
| |
| void oatFlushRegWideImpl(CompilationUnit* cUnit, int rBase, |
| int displacement, int rSrcLo, int rSrcHi) |
| { |
| storeBaseDispWide(cUnit, rBase, displacement, rSrcLo, rSrcHi); |
| } |
| |
| } // namespace art |
