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

[via llvm-commits]

================
@@ -479,6 +479,7 @@ void RISCVPassConfig::addIRPasses() {
     addPass(createRISCVGatherScatterLoweringPass());
     addPass(createInterleavedAccessPass());
     addPass(createRISCVCodeGenPrepareLegacyPass());
+    addPass(createLoopReduceMotionPass());
----------------
Anjian-Wen wrote:

Thanks, I have put it after VectorCombine which seems more reasonable.

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