[llvm] [LoongArch] Ensure pcaddu18i and jirl adjacency in tail calls for correct relocation (PR #113932)

[Lu Weining via llvm-commits]

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@@ -120,3 +120,60 @@ entry:
   %r = tail call i32 @callee_tail(i32 %i)
   ret i32 %r
 }
+
+define i32 @caller_call_tail(i32 %i) nounwind {
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SixWeining wrote:

pre-commit this new test

https://github.com/llvm/llvm-project/pull/113932