From c403280f6bf09062c905d5b65539c15894667a3f Mon Sep 17 00:00:00 2001
From: Johnson Zhang <johnson9009@163.com>
Date: Wed, 10 Feb 2021 09:31:09 +0800
Subject: [PATCH] [Relay][Quantization] Fix Bug Which Cause Negative Left Shift
 Op

---
 src/relay/quantize/realize.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/relay/quantize/realize.cc b/src/relay/quantize/realize.cc
index 2716c6e65f65..d77ede3acbf9 100644
--- a/src/relay/quantize/realize.cc
+++ b/src/relay/quantize/realize.cc
@@ -165,7 +165,7 @@ Expr QuantizeRealize(const Call& ref_call, const Array<Expr>& new_args, const Ob
                           MakeConstantScalar(cfg->dtype_activation, static_cast<int>(shift_nbit)));
       } else {
         data = LeftShift(data,
-                         MakeConstantScalar(cfg->dtype_activation, static_cast<int>(shift_nbit)));
+                         MakeConstantScalar(cfg->dtype_activation, static_cast<int>(-shift_nbit)));
       }
       data = Clip(data, clip_min_imm, clip_max_imm);
       return QRealizeIntExpr(data, dom_scale, n->dtype);