Rewrite GVN's field id and field type handling.
Create a helper unit for dex insn classification and cache
dex field type (as encoded in the insn) in the MirFieldInfo.
Use this for cleanup and a few additional DCHECKs.
Change the GVN's field id to match the field lowering info
index (MIR::meta::{i,s}field_lowering_info), except where
multiple indexes refer to the same field and we use the
lowest of the applicable indexes. Use the MirMethodInfo from
MIRGraph to retrieve field type for GVN using this index.
This slightly reduces GVN compilation time and prepares for
further compilation time improvements.
Change-Id: I1b1247cdb8e8b6897254e2180f3230f10159bed5
diff --git a/compiler/utils/dex_instruction_utils.h b/compiler/utils/dex_instruction_utils.h
new file mode 100644
index 0000000..09d9419
--- /dev/null
+++ b/compiler/utils/dex_instruction_utils.h
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+#ifndef ART_COMPILER_UTILS_DEX_INSTRUCTION_UTILS_H_
+#define ART_COMPILER_UTILS_DEX_INSTRUCTION_UTILS_H_
+
+#include "dex_instruction.h"
+
+namespace art {
+
+// Dex invoke type corresponds to the ordering of INVOKE instructions;
+// this order is the same for range and non-range invokes.
+enum DexInvokeType : uint8_t {
+ kDexInvokeVirtual = 0, // invoke-virtual, invoke-virtual-range
+ kDexInvokeSuper, // invoke-super, invoke-super-range
+ kDexInvokeDirect, // invoke-direct, invoke-direct-range
+ kDexInvokeStatic, // invoke-static, invoke-static-range
+ kDexInvokeInterface, // invoke-interface, invoke-interface-range
+ kDexInvokeTypeCount
+};
+
+// Dex instruction memory access types correspond to the ordering of GET/PUT instructions;
+// this order is the same for IGET, IPUT, SGET, SPUT, AGET and APUT.
+enum DexMemAccessType : uint8_t {
+ kDexMemAccessWord = 0, // op 0; int or float, the actual type is not encoded.
+ kDexMemAccessWide, // op_WIDE 1; long or double, the actual type is not encoded.
+ kDexMemAccessObject, // op_OBJECT 2; the actual reference type is not encoded.
+ kDexMemAccessBoolean, // op_BOOLEAN 3
+ kDexMemAccessByte, // op_BYTE 4
+ kDexMemAccessChar, // op_CHAR 5
+ kDexMemAccessShort, // op_SHORT 6
+ kDexMemAccessTypeCount
+};
+
+std::ostream& operator<<(std::ostream& os, const DexMemAccessType& type);
+
+// NOTE: The following functions disregard quickened instructions.
+
+constexpr bool IsInstructionInvoke(Instruction::Code opcode) {
+ return Instruction::INVOKE_VIRTUAL <= opcode && opcode <= Instruction::INVOKE_INTERFACE_RANGE &&
+ opcode != Instruction::RETURN_VOID_BARRIER;
+}
+
+constexpr bool IsInstructionInvokeStatic(Instruction::Code opcode) {
+ return opcode == Instruction::INVOKE_STATIC || opcode == Instruction::INVOKE_STATIC_RANGE;
+}
+
+constexpr bool IsInstructionIfCc(Instruction::Code opcode) {
+ return Instruction::IF_EQ <= opcode && opcode <= Instruction::IF_LE;
+}
+
+constexpr bool IsInstructionIfCcZ(Instruction::Code opcode) {
+ return Instruction::IF_EQZ <= opcode && opcode <= Instruction::IF_LEZ;
+}
+
+constexpr bool IsInstructionIGet(Instruction::Code code) {
+ return Instruction::IGET <= code && code <= Instruction::IGET_SHORT;
+}
+
+constexpr bool IsInstructionIPut(Instruction::Code code) {
+ return Instruction::IPUT <= code && code <= Instruction::IPUT_SHORT;
+}
+
+constexpr bool IsInstructionSGet(Instruction::Code code) {
+ return Instruction::SGET <= code && code <= Instruction::SGET_SHORT;
+}
+
+constexpr bool IsInstructionSPut(Instruction::Code code) {
+ return Instruction::SPUT <= code && code <= Instruction::SPUT_SHORT;
+}
+
+constexpr bool IsInstructionAGet(Instruction::Code code) {
+ return Instruction::AGET <= code && code <= Instruction::AGET_SHORT;
+}
+
+constexpr bool IsInstructionAPut(Instruction::Code code) {
+ return Instruction::APUT <= code && code <= Instruction::APUT_SHORT;
+}
+
+constexpr bool IsInstructionIGetOrIPut(Instruction::Code code) {
+ return Instruction::IGET <= code && code <= Instruction::IPUT_SHORT;
+}
+
+constexpr bool IsInstructionSGetOrSPut(Instruction::Code code) {
+ return Instruction::SGET <= code && code <= Instruction::SPUT_SHORT;
+}
+
+constexpr bool IsInstructionAGetOrAPut(Instruction::Code code) {
+ return Instruction::AGET <= code && code <= Instruction::APUT_SHORT;
+}
+
+// TODO: Remove the #if guards below when we fully migrate to C++14.
+
+constexpr bool IsInvokeInstructionRange(Instruction::Code opcode) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionInvoke(opcode));
+#endif
+ return opcode >= Instruction::INVOKE_VIRTUAL_RANGE;
+}
+
+constexpr DexInvokeType InvokeInstructionType(Instruction::Code opcode) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionInvoke(opcode));
+#endif
+ return static_cast<DexInvokeType>(IsInvokeInstructionRange(opcode)
+ ? (opcode - Instruction::INVOKE_VIRTUAL_RANGE)
+ : (opcode - Instruction::INVOKE_VIRTUAL));
+}
+
+constexpr DexMemAccessType IGetMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionIGet(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::IGET);
+}
+
+constexpr DexMemAccessType IPutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionIPut(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::IPUT);
+}
+
+constexpr DexMemAccessType SGetMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionSGet(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::SGET);
+}
+
+constexpr DexMemAccessType SPutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionSPut(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::SPUT);
+}
+
+constexpr DexMemAccessType AGetMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionAGet(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::AGET);
+}
+
+constexpr DexMemAccessType APutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionAPut(opcode));
+#endif
+ return static_cast<DexMemAccessType>(code - Instruction::APUT);
+}
+
+constexpr DexMemAccessType IGetOrIPutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionIGetOrIPut(opcode));
+#endif
+ return (code >= Instruction::IPUT) ? IPutMemAccessType(code) : IGetMemAccessType(code);
+}
+
+constexpr DexMemAccessType SGetOrSPutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionSGetOrSPut(opcode));
+#endif
+ return (code >= Instruction::SPUT) ? SPutMemAccessType(code) : SGetMemAccessType(code);
+}
+
+constexpr DexMemAccessType AGetOrAPutMemAccessType(Instruction::Code code) {
+#if __cplusplus >= 201402 // C++14 allows the DCHECK() in constexpr functions.
+ DCHECK(IsInstructionAGetOrAPut(opcode));
+#endif
+ return (code >= Instruction::APUT) ? APutMemAccessType(code) : AGetMemAccessType(code);
+}
+
+} // namespace art
+
+#endif // ART_COMPILER_UTILS_DEX_INSTRUCTION_UTILS_H_