From c07e3bb1cfa1a0a928353f7d6aab92a5d195f823 Mon Sep 17 00:00:00 2001
From: lidanqing <danqing.li@intel.com>
Date: Thu, 9 Jun 2022 17:19:10 +0800
Subject: [PATCH] [Bug fix] Do not quantize weights Y when matmul X and Y both
 other ops outputs (#43297)

* fix some matmul that X and Y both other ops outputs, do not dequantize the Y.

* fix CI format

* fix according to review
---
 .../fluid/framework/ir/mkldnn/quant_dequant_mkldnn_pass.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/paddle/fluid/framework/ir/mkldnn/quant_dequant_mkldnn_pass.cc b/paddle/fluid/framework/ir/mkldnn/quant_dequant_mkldnn_pass.cc
index 808d043a4b..28363f8f16 100644
--- a/paddle/fluid/framework/ir/mkldnn/quant_dequant_mkldnn_pass.cc
+++ b/paddle/fluid/framework/ir/mkldnn/quant_dequant_mkldnn_pass.cc
@@ -354,10 +354,9 @@ bool QuantDequantMkldnnPass::IsInt8Weight(
   auto* op_desc = op_node->Op();
   auto var_name = op_desc->Input(weight_name)[0];
   auto* var = scope->FindVar(var_name);
-  PADDLE_ENFORCE_NOT_NULL(
-      var, platform::errors::NotFound(
-               "The input persistable [%s] var of [%s] op is not found.",
-               var_name, op_desc->Type()));
+  if (var == nullptr) {
+    return false;
+  }
   auto* weight_tensor = var->GetMutable<LoDTensor>();
   auto* weight_data = weight_tensor->data<float>();
   bool is_int8 = true;
-- 
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