Added some C APIs for llvm Jit compilation (#847)

Author: kuzminrobin

src/Qir/Runtime/lib/QIR/context.cpp

@@ -4,6 +4,7 @@
 #include <cassert>
 
 #include "QirContext.hpp"
+#include "QirContext.h"
 
 #include "CoreTypes.hpp"
 #include "QirRuntimeApi_I.hpp"
@@ -25,6 +26,11 @@ namespace Quantum
         g_context = std::make_unique<QirExecutionContext>(driver, trackAllocatedObjects);
     }
 
+    extern "C" void InitializeQirContext(void* driver, bool trackAllocatedObjects)
+    {
+        InitializeQirContext((IRuntimeDriver*)driver, trackAllocatedObjects);
+    }
+
     void ReleaseQirContext()
     {
         assert(g_context != nullptr);

src/Qir/Runtime/lib/Simulators/FullstateSimulator.cpp

@@ -28,6 +28,7 @@
 #include "QirRuntimeApi_I.hpp"
 #include "QSharpSimApi_I.hpp"
 #include "SimFactory.hpp"
+#include "SimFactory.h"
 #include "OutputStream.hpp"
 #include "QubitManager.hpp"
 
@@ -646,5 +647,11 @@ namespace Quantum
     {
         return std::make_unique<CFullstateSimulator>(userProvidedSeed);
     }
+
+    extern "C" void* CreateFullstateSimulatorC(uint32_t userProvidedSeed)
+    {
+        return (IRuntimeDriver*)new CFullstateSimulator(userProvidedSeed);
+    }
+
 } // namespace Quantum
 } // namespace Microsoft

src/Qir/Runtime/public/CoreDefines.h

@@ -0,0 +1,14 @@
+#ifndef COREDEFINES_H
+#define COREDEFINES_H
+
+#ifdef _WIN32
+#ifdef EXPORT_QIR_API
+#define QIR_SHARED_API __declspec(dllexport)
+#else
+#define QIR_SHARED_API __declspec(dllimport)
+#endif
+#else
+#define QIR_SHARED_API
+#endif
+
+#endif // #ifndef COREDEFINES_H

src/Qir/Runtime/public/CoreTypes.hpp

@@ -4,16 +4,7 @@
 #pragma once
 
 #include <cstdint>
-
-#ifdef _WIN32
-#ifdef EXPORT_QIR_API
-#define QIR_SHARED_API __declspec(dllexport)
-#else
-#define QIR_SHARED_API __declspec(dllimport)
-#endif
-#else
-#define QIR_SHARED_API
-#endif
+#include "CoreDefines.h"
 
 // The core types will be exposed in the C-interfaces for interop, thus no
 // namespaces or scoped enums can be used to define them.

src/Qir/Runtime/public/QirContext.h

@@ -0,0 +1,18 @@
+#ifndef QIRCONTEXT_H
+#define QIRCONTEXT_H
+
+#include <stdbool.h>
+#include "CoreDefines.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    QIR_SHARED_API void InitializeQirContext(void* driver, bool trackAllocatedObjects);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // #ifndef QIRCONTEXT_H

src/Qir/Runtime/public/SimFactory.h

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+#ifndef SIMFACTORY_H
+#define SIMFACTORY_H
+
+#include <stdint.h>
+#include "CoreDefines.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    QIR_SHARED_API void* CreateFullstateSimulatorC(uint32_t userProvidedSeed);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // #ifndef SIMFACTORY_H