[llvm] [LoopVectorizer] Add support for partial reductions (PR #92418)

[Graham Hunter via llvm-commits]

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@@ -0,0 +1,272 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
+; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -S < %s | FileCheck %s
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64-none-unknown-elf"
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huntergr-arm wrote:

I think this should either be moved to the AArch64 subdirectory or not target AArch64. You might also be missing necessary attributes for AArch64 (+sve? +dotprod?) needed to transform this.

https://github.com/llvm/llvm-project/pull/92418