make use of the new environment variable

src/runtime/RuntimeInfo.cpp

@@ -76,6 +76,21 @@ Path RuntimeInfo::igcPath()
         return {};
 }
 
+Path RuntimeInfo::libdevicePath()
+{
+    // Should reside in the same directory!
+    const Path exePath = executablePath();
+    if (exePath.empty())
+        return {};
+
+    const Path libPath = exePath.parent_path() / "libdevice.10.bc";
+
+    if (std::filesystem::exists(libPath))
+        return libPath;
+    else
+        return {};
+}
+
 Path RuntimeInfo::modulePath(void* func)
 {
     if (func == nullptr)

src/runtime/RuntimeInfo.h

@@ -7,6 +7,7 @@ class IG_LIB RuntimeInfo {
 public:
     [[nodiscard]] static Path executablePath();                 // Path to the current executable
     [[nodiscard]] static Path igcPath();                        // Path to the ignis jit compiler 'igc'
+    [[nodiscard]] static Path libdevicePath();                  // Path to 'libdevice.10.bc' needed by the cuda device
     [[nodiscard]] static Path modulePath(void* func = nullptr); // Path to the module/dll for the given function
     [[nodiscard]] static Path cacheDirectory();
     [[nodiscard]] static size_t sizeOfDirectory(const Path& dir);

src/runtime/device/DeviceManager.cpp

@@ -4,12 +4,16 @@
 #include "RuntimeInfo.h"
 #include "StringUtils.h"
 
+#include <cstdlib>
+
 #include <unordered_set>
 
 #define _IG_DEVICE_ENV_PATH_NAME "IG_DEVICE_PATH"
 #define _IG_DEVICE_ENV_SKIP_SYSTEM_PATH "IG_DEVICE_SKIP_SYSTEM_PATH"
 #define _IG_DEVICE_LIB_PREFIX "ig_device_"
 
+#define ANYDSL_CUDA_LIBDEVICE_PATH_ENV "ANYDSL_CUDA_LIBDEVICE_PATH"
+
 namespace IG {
 
 using GetInterfaceFunction = const IDeviceInterface* (*)();
@@ -64,6 +68,16 @@ bool DeviceManager::init(const Path& dir, bool ignoreEnv, bool force)
     if (!force && !mAvailableDevices.empty())
         return true;
 
+    const auto libdevicePath = RuntimeInfo::libdevicePath();
+    if (!libdevicePath.empty()) {
+        IG_LOG(L_DEBUG) << "Setting libdevice path " << libdevicePath << " to environment variable " << ANYDSL_CUDA_LIBDEVICE_PATH_ENV << std::endl;
+#ifdef IG_OS_WINDOWS
+        _putenv_s(ANYDSL_CUDA_LIBDEVICE_PATH_ENV, libdevicePath.generic_string().c_str());
+#else
+        setenv(ANYDSL_CUDA_LIBDEVICE_PATH_ENV, libdevicePath.generic_string().c_str(), 1);
+#endif
+    }
+
     path_set paths;
 
     bool skipSystem = false; // Skip the system search path