[llvm] [X86] Fold `(icmp ult (add x,-C),2)` -> `(or (icmp eq X,C), (icmp eq X,C+1))` for Vectors (PR #84104)

[Simon Pilgrim via llvm-commits]

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@@ -64,6 +64,7 @@
 #include <algorithm>
 #include <bitset>
 #include <cctype>
+#include <llvm-19/llvm/CodeGen/ISDOpcodes.h>
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RKSimon wrote:

Remove this?

Out of interest - what tool keeps adding these ?

https://github.com/llvm/llvm-project/pull/84104