[llvm] [X86] Fix 32-bit immediate assertion and convert into backend error (PR #123872)

[Phoebe Wang via llvm-commits]

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@@ -13,6 +13,7 @@
 #ifndef LLVM_LIB_TARGET_X86_X86REGISTERINFO_H
 #define LLVM_LIB_TARGET_X86_X86REGISTERINFO_H
 
+#include "llvm/CodeGen/MachineFunction.h"
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phoebewang wrote:

Do we need this?

https://github.com/llvm/llvm-project/pull/123872