[llvm] [SimplifyCFG] Added optimization for switches of powers of two (PR #70977)

[via llvm-commits]

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@@ -50,6 +50,7 @@
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Intrinsics.h"
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DianQK wrote:

Do you have to import that header file?

https://github.com/llvm/llvm-project/pull/70977