ART: Optimizing compiler intrinsics

Add intrinsics infrastructure to the optimizing compiler.

Add almost all intrinsics supported by Quick to the x86-64 backend.
Further intrinsics require more assembler support.

Change-Id: I48de9b44c82886bb298d16e74e12a9506b8e8807

1 files changed, 86 insertions, 0 deletions

diff --git a/compiler/optimizing/intrinsics.h b/compiler/optimizing/intrinsics.h
new file mode 100644
index 000000000..29cc8efcc
--- /dev/null
+++ b/compiler/optimizing/intrinsics.h
@@ -0,0 +1,86 @@
+/*
+ * 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_INTRINSICS_H_
+#define ART_COMPILER_OPTIMIZING_INTRINSICS_H_
+
+#include "nodes.h"
+#include "optimization.h"
+
+namespace art {
+
+class CompilerDriver;
+class DexFile;
+
+// Recognize intrinsics from HInvoke nodes.
+class IntrinsicsRecognizer : public HOptimization {
+ public:
+  IntrinsicsRecognizer(HGraph* graph, const DexFile* dex_file, CompilerDriver* driver)
+      : HOptimization(graph, true, "intrinsics_recognition"),
+        dex_file_(dex_file), driver_(driver) {}
+
+  void Run() OVERRIDE;
+
+ private:
+  const DexFile* dex_file_;
+  CompilerDriver* driver_;
+
+  DISALLOW_COPY_AND_ASSIGN(IntrinsicsRecognizer);
+};
+
+class IntrinsicVisitor : public ValueObject {
+ public:
+  virtual ~IntrinsicVisitor() {}
+
+  // Dispatch logic.
+
+  void Dispatch(HInvoke* invoke) {
+    switch (invoke->GetIntrinsic()) {
+      case Intrinsics::kNone:
+        return;
+#define OPTIMIZING_INTRINSICS(Name, IsStatic) \
+      case Intrinsics::k ## Name:             \
+        Visit ## Name(invoke);                \
+        return;
+#include "intrinsics_list.h"
+INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
+#undef INTRINSICS_LIST
+#undef OPTIMIZING_INTRINSICS
+
+      // Do not put a default case. That way the compiler will complain if we missed a case.
+    }
+  }
+
+  // Define visitor methods.
+
+#define OPTIMIZING_INTRINSICS(Name, IsStatic)                    \
+  virtual void Visit ## Name(HInvoke* invoke ATTRIBUTE_UNUSED) { \
+  }
+#include "intrinsics_list.h"
+INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
+#undef INTRINSICS_LIST
+#undef OPTIMIZING_INTRINSICS
+
+ protected:
+  IntrinsicVisitor() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IntrinsicVisitor);
+};
+
+}  // namespace art
+
+#endif  // ART_COMPILER_OPTIMIZING_INTRINSICS_H_