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

[Joseph Huber via llvm-commits]

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@@ -42,26 +43,26 @@ template <typename Ty> inline Ty roundUp(Ty V, Ty Boundary) {
 
 /// Return the first bit set in \p V.
 inline uint32_t ffs(uint32_t V) {
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jhuber6 wrote:

All of these bit helpers should just be removed and made to use the LLVM bit helpers (std bit is C++20).

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