[llvm] [CVP] #114820 add 'samesign' for 'icmp' (PR #115642)

[Yingwei Zheng via llvm-commits]

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@@ -38,6 +38,7 @@
 #include "llvm/IR/Type.h"
 #include "llvm/IR/Value.h"
 #include "llvm/Support/Casting.h"
+#include "llvm/Support/KnownBits.h"
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dtcxzyw wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/115642