upload android base code part3

android/art/compiler/optimizing/code_generator_utils.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 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_OPTIMIZING_CODE_GENERATOR_UTILS_H_
+#define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_UTILS_H_
+
+#include <cstdint>
+#include <cstdlib>
+#include <limits>
+
+namespace art {
+
+class HInstruction;
+
+// Computes the magic number and the shift needed in the div/rem by constant algorithm, as out
+// arguments `magic` and `shift`
+void CalculateMagicAndShiftForDivRem(int64_t divisor, bool is_long, int64_t* magic, int* shift);
+
+// Returns true if `cond_input` is expected to have a location. Assumes that
+// `cond_input` is a conditional input of the currently emitted instruction and
+// that it has been previously visited by the InstructionCodeGenerator.
+bool IsBooleanValueOrMaterializedCondition(HInstruction* cond_input);
+
+template <typename T> T AbsOrMin(T value) {
+  return (value == std::numeric_limits<T>::min())
+      ? value
+      : std::abs(value);
+}
+
+}  // namespace art
+
+#endif  // ART_COMPILER_OPTIMIZING_CODE_GENERATOR_UTILS_H_