[llvm] [LoopIdiomVectorize] Preserve address space in FindFirstByte (PR #185226)

[via llvm-commits]

================
@@ -974,6 +974,45 @@ exit:
   ret ptr %res
 }
 
+; Same as @find_first_of_i8 but with non-zero address space pointers.
+; This verifies that the vectorized loop correctly preserves address spaces.
+define ptr addrspace(1) @find_first_of_i8_addrspace(ptr addrspace(1) %search_start, ptr addrspace(1) %search_end, ptr addrspace(1) %needle_start, ptr addrspace(1) %needle_end) #0 {
+; CHECK-LABEL: define ptr addrspace(1) @find_first_of_i8_addrspace(
+; CHECK: @llvm.experimental.vector.match
----------------
sweiglbosker wrote:

this is in the UTD disable section but ive moved it up because its not negative test like the others

https://github.com/llvm/llvm-project/pull/185226