llvmjit_internal.h

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/*
 * Copyright 2025 Stanford University, NVIDIA Corporation
 * SPDX-License-Identifier: Apache-2.0
 *
 * 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 LLVMJIT_INTERNAL_H
#define LLVMJIT_INTERNAL_H
 
#include "realm/realm_config.h"
#include "realm/bytearray.h"
 
#include <string>
 
// instead of including LLVM headers here, we just forward-declare the things
//  that need to appear inside an LLVMJitInternal
typedef struct LLVMOpaqueContext *LLVMContextRef;
typedef struct LLVMOpaqueExecutionEngine *LLVMExecutionEngineRef;
typedef struct LLVMTarget *LLVMTargetRef;
 
namespace Realm {
  namespace LLVMJit {
 
    class LLVMJitInternal {
    public:
      LLVMJitInternal(void);
      ~LLVMJitInternal(void);
 
      void *llvmir_to_fnptr(const ByteArray &ir, const std::string &entry_symbol);
 
#ifdef REALM_ALLOW_MISSING_LLVM_LIBS
      static bool detect_llvm_libraries(void);
#endif
 
    protected:
      LLVMContextRef context;
      LLVMExecutionEngineRef host_exec_engine;
      LLVMTargetRef nvptx_machine;
    };
 
  }; // namespace LLVMJit
 
}; // namespace Realm
 
#endif