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diff --git a/src/compiler/codegen/arm/codegen.h b/src/compiler/codegen/arm/codegen.h
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+++ b/src/compiler/codegen/arm/codegen.h
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+/*
+ * Copyright (C) 2012 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.
+ */
+
+/* This file contains register alloction support. */
+
+#include "../../compiler_ir.h"
+
+namespace art {
+
+#if defined(_CODEGEN_C)
+LIR *opRegImm(CompilationUnit* cUnit, OpKind op, int rDestSrc1, int value);
+LIR *opRegReg(CompilationUnit* cUnit, OpKind op, int rDestSrc1, int rSrc2);
+LIR* opCmpImmBranch(CompilationUnit* cUnit, ConditionCode cond, int reg,
+ int checkValue, LIR* target);
+bool genNegLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc);
+
+/* Forward declaraton the portable versions due to circular dependency */
+bool genArithOpFloatPortable(CompilationUnit* cUnit, Instruction::Code opcode,
+ RegLocation rlDest, RegLocation rlSrc1,
+ RegLocation rlSrc2);
+
+bool genArithOpDoublePortable(CompilationUnit* cUnit, Instruction::Code opcode,
+ RegLocation rlDest, RegLocation rlSrc1,
+ RegLocation rlSrc2);
+
+bool genConversionPortable(CompilationUnit* cUnit, Instruction::Code opcode,
+ RegLocation rlDest, RegLocation rlSrc);
+
+ArmConditionCode oatArmConditionEncoding(ConditionCode code);
+
+int loadHelper(CompilationUnit* cUnit, int offset);
+LIR* loadConstant(CompilationUnit* cUnit, int reg, int immVal);
+void opRegCopyWide(CompilationUnit* cUnit, int destLo, int destHi,
+ int srcLo, int srcHi);
+LIR* opRegCopy(CompilationUnit* cUnit, int rDest, int rSrc);
+void freeRegLocTemps(CompilationUnit* cUnit, RegLocation rlKeep,
+ RegLocation rlFree);
+
+
+/*
+ * Return most flexible allowed register class based on size.
+ * Bug: 2813841
+ * Must use a core register for data types narrower than word (due
+ * to possible unaligned load/store.
+ */
+inline RegisterClass oatRegClassBySize(OpSize size)
+{
+ return (size == kUnsignedHalf ||
+ size == kSignedHalf ||
+ size == kUnsignedByte ||
+ size == kSignedByte ) ? kCoreReg : kAnyReg;
+}
+
+/*
+ * Construct an s4 from two consecutive half-words of switch data.
+ * This needs to check endianness because the DEX optimizer only swaps
+ * half-words in instruction stream.
+ *
+ * "switchData" must be 32-bit aligned.
+ */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+inline s4 s4FromSwitchData(const void* switchData) {
+ return *(s4*) switchData;
+}
+#else
+inline s4 s4FromSwitchData(const void* switchData) {
+ u2* data = switchData;
+ return data[0] | (((s4) data[1]) << 16);
+}
+#endif
+
+#endif
+
+extern void oatSetupResourceMasks(CompilationUnit* cUnit, LIR* lir);
+
+extern LIR* oatRegCopyNoInsert(CompilationUnit* cUnit, int rDest, int rSrc);
+
+bool genAddLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc1, RegLocation rlSrc2);
+bool genSubLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc1, RegLocation rlSrc2);
+bool genAndLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc1, RegLocation rlSrc2);
+bool genOrLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc1, RegLocation rlSrc2);
+bool genXorLong(CompilationUnit* cUnit, RegLocation rlDest,
+ RegLocation rlSrc1, RegLocation rlSrc2);
+
+} // namespace art