[llvm] [LoopVectorizer][AArch64] Add support for partial reduce subtraction (PR #123636)

[Florian Hahn via llvm-commits]

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@@ -2214,7 +2214,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK-MAXBW:       vector.body:
 ; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ]
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fhahn wrote:

unrelated changes?

https://github.com/llvm/llvm-project/pull/123636