1 files changed, 157 insertions, 0 deletions
diff --git a/compiler/llvm/intrinsic_helper.h b/compiler/llvm/intrinsic_helper.h
new file mode 100644
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+++ b/compiler/llvm/intrinsic_helper.h
@@ -0,0 +1,157 @@
+/*
+ * 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.
+ */
+
+#ifndef ART_SRC_GREENLAND_INTRINSIC_HELPER_H_
+#define ART_SRC_GREENLAND_INTRINSIC_HELPER_H_
+
+#include "base/logging.h"
+
+#include <llvm/ADT/DenseMap.h>
+
+namespace llvm {
+  class Function;
+  class FunctionType;
+  class LLVMContext;
+  class Module;
+}  // namespace llvm
+
+namespace art {
+namespace llvm {
+
+class IRBuilder;
+
+class IntrinsicHelper {
+ public:
+  enum IntrinsicId {
+#define DEF_INTRINSICS_FUNC(ID, ...) ID,
+#include "intrinsic_func_list.def"
+    MaxIntrinsicId,
+
+    // Pseudo-intrinsics Id
+    UnknownId
+  };
+
+  enum IntrinsicAttribute {
+    kAttrNone     = 0,
+
+    // Intrinsic that neither modified the memory state nor refer to the global
+    // state
+    kAttrReadNone = 1 << 0,
+
+    // Intrinsic that doesn't modify the memory state. Note that one should set
+    // this flag carefully when the intrinsic may throw exception. Since the
+    // thread state is implicitly modified when an exception is thrown.
+    kAttrReadOnly = 1 << 1,
+
+    // Note that intrinsic without kAttrNoThrow and kAttrDoThrow set means that
+    // intrinsic generates exception in some cases
+
+    // Intrinsic that never generates exception
+    kAttrNoThrow  = 1 << 2,
+    // Intrinsic that always generate exception
+    kAttrDoThrow  = 1 << 3,
+  };
+
+  enum IntrinsicValType {
+    kNone,
+
+    kVoidTy,
+
+    kJavaObjectTy,
+    kJavaMethodTy,
+    kJavaThreadTy,
+
+    kInt1Ty,
+    kInt8Ty,
+    kInt16Ty,
+    kInt32Ty,
+    kInt64Ty,
+    kFloatTy,
+    kDoubleTy,
+
+    kInt1ConstantTy,
+    kInt8ConstantTy,
+    kInt16ConstantTy,
+    kInt32ConstantTy,
+    kInt64ConstantTy,
+    kFloatConstantTy,
+    kDoubleConstantTy,
+
+    kVarArgTy,
+  };
+
+  enum {
+    kIntrinsicMaxArgc = 5
+  };
+
+  typedef struct IntrinsicInfo {
+    const char* name_;
+    unsigned attr_;
+    IntrinsicValType ret_val_type_;
+    IntrinsicValType arg_type_[kIntrinsicMaxArgc];
+  } IntrinsicInfo;
+
+ private:
+  static const IntrinsicInfo Info[];
+
+ public:
+  static const IntrinsicInfo& GetInfo(IntrinsicId id) {
+    DCHECK(id >= 0 && id < MaxIntrinsicId) << "Unknown ART intrinsics ID: "
+                                           << id;
+    return Info[id];
+  }
+
+  static const char* GetName(IntrinsicId id) {
+    return (id <= MaxIntrinsicId) ? GetInfo(id).name_ : "InvalidIntrinsic";
+  }
+
+  static unsigned GetAttr(IntrinsicId id) {
+    return GetInfo(id).attr_;
+  }
+
+ public:
+  IntrinsicHelper(::llvm::LLVMContext& context, ::llvm::Module& module);
+
+  ::llvm::Function* GetIntrinsicFunction(IntrinsicId id) {
+    DCHECK(id >= 0 && id < MaxIntrinsicId) << "Unknown ART intrinsics ID: "
+                                           << id;
+    return intrinsic_funcs_[id];
+  }
+
+  IntrinsicId GetIntrinsicId(const ::llvm::Function* func) const {
+    ::llvm::DenseMap<const ::llvm::Function*, IntrinsicId>::const_iterator
+        i = intrinsic_funcs_map_.find(func);
+    if (i == intrinsic_funcs_map_.end()) {
+      return UnknownId;
+    } else {
+      return i->second;
+    }
+  }
+
+ private:
+  // FIXME: "+1" is to workaround the GCC bugs:
+  // http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949
+  // Remove this when uses newer GCC (> 4.4.3)
+  ::llvm::Function* intrinsic_funcs_[MaxIntrinsicId + 1];
+
+  // Map a llvm::Function to its intrinsic id
+  ::llvm::DenseMap<const ::llvm::Function*, IntrinsicId> intrinsic_funcs_map_;
+};
+
+} // namespace llvm
+} // namespace art
+
+#endif // ART_SRC_GREENLAND_INTRINSIC_HELPER_H_