[clang] [nvptx-arch] allowed load `nvcuda.dll` on Windows (PR #135300)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (SquallATF)

<details>
<summary>Changes</summary>

Make nvptx-arch work on windows

---
Full diff: https://github.com/llvm/llvm-project/pull/135300.diff


1 Files Affected:

- (modified) clang/tools/offload-arch/NVPTXArch.cpp (+4) 


``````````diff
diff --git a/clang/tools/offload-arch/NVPTXArch.cpp b/clang/tools/offload-arch/NVPTXArch.cpp
index c7b7fcdf80500..dc06f836898ca 100644
--- a/clang/tools/offload-arch/NVPTXArch.cpp
+++ b/clang/tools/offload-arch/NVPTXArch.cpp
@@ -39,7 +39,11 @@ CUresult (*cuGetErrorString)(CUresult, const char **);
 CUresult (*cuDeviceGet)(CUdevice *, int);
 CUresult (*cuDeviceGetAttribute)(int *, CUdevice_attribute, CUdevice);
 
+#if defined(_WIN32)
+constexpr const char *DynamicCudaPath = "nvcuda.dll";
+#else
 constexpr const char *DynamicCudaPath = "libcuda.so.1";
+#endif
 
 llvm::Error loadCUDA() {
   std::string ErrMsg;

``````````

</details>


https://github.com/llvm/llvm-project/pull/135300