[llvm] [RISCV] Improve loop by extract reduction instruction (PR #179215)

[via llvm-commits]

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@@ -0,0 +1,212 @@
+//===-------- LoopReduceMotion.cpp - Loop Reduce Motion Optimization ------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+// This pass is designed to hoist `ReduceCall` operations out of loops to reduce
+// the number of instructions within the loop body.
+//
+// Below are the target pattern to be matched and the resulting pattern
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Anjian-Wen wrote:

Fixed!

https://github.com/llvm/llvm-project/pull/179215