[llvm] [offload] Add Windows offload support (PR #187006)

[Nick Sarnie via llvm-commits]

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@@ -14,6 +14,7 @@
 #ifndef OMPTARGET_SHARED_UTILS_H
 #define OMPTARGET_SHARED_UTILS_H
 
+#include "llvm/ADT/bit.h"
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sarnex wrote:

sorry could you explain what we need from this header?

https://github.com/llvm/llvm-project/pull/187006