From d95513ae3a73388cbe18fa1bd2c76fec70f3ec06 Mon Sep 17 00:00:00 2001
From: "Liqin.Weng" <Liqin.Weng@streamcomputing.com>
Date: Mon, 16 May 2022 12:53:32 +0000
Subject: [PATCH] [RISCV] remove useless code
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When legality check for vectoring reduction， hasVInstructions() check be unneeded. RISCV can only loop vectorization with hasVInstructions()

Reviewed By: kito-cheng, craig.topper

Differential Revision: https://reviews.llvm.org/D125460
---
 llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
index a0a511096352..cdec074dc2a4 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
@@ -171,9 +171,6 @@ public:
 
   bool isLegalToVectorizeReduction(const RecurrenceDescriptor &RdxDesc,
                                    ElementCount VF) const {
-    if (!ST->hasVInstructions())
-      return false;
-
     if (!VF.isScalable())
       return true;