Add quant axis (#36467)

* add_quant_axis

* add_quant_axis

* --amend

* Update quant_conv2d_dequant_fuse_pass.cc

paddle/fluid/framework/ir/quant_conv2d_dequant_fuse_pass.cc

@@ -437,7 +437,11 @@ void QuantDequantFusePass::FuseDequant(ir::Graph* graph, Scope* scope,
         BOOST_GET_CONST(int, quantized_op_node->Op()->GetAttr("bit_length"));
     int range = ((1 << (bit_length - 1)) - 1);
     std::vector<float> weight_scale;
-
+    int quant_axis = 0;
+    if (dequant_op_node->Op()->HasAttr("quant_axis")) {
+      quant_axis =
+          BOOST_GET_CONST(int, dequant_op_node->Op()->GetAttr("quant_axis"));
+    }
     // Get weight scale
     if (dequant_type == "fake_channel_wise_dequantize_max_abs") {
       Node* dequant_channel_scale_node =
@@ -488,6 +492,16 @@ void QuantDequantFusePass::FuseDequant(ir::Graph* graph, Scope* scope,
         }
       }
       if (dequant_type == "fake_channel_wise_dequantize_max_abs") {
+        if (quant_axis == 0) {
+        } else {
+          PADDLE_ENFORCE_EQ(
+              quant_axis == 1, true,
+              platform::errors::InvalidArgument(
+                  "'quant_axis' of mul/matmul/fc op weight dequantized by "
+                  "[fake_channel_wise_dequantize_max_abs]should be 1, but "
+                  "the received is %d",
+                  quant_axis));
+        }
         PADDLE_ENFORCE_EQ(
             weight_scale.size(), static_cast<size_t>(w_dims[1]),
             platform::errors::InvalidArgument(
@@ -511,6 +525,16 @@ void QuantDequantFusePass::FuseDequant(ir::Graph* graph, Scope* scope,
               "model, please set the 'weight_quantize_type' params as "
               "'channel_wise_abs_max' and generate the quantized model again.",
               dequant_type));
+      if (quant_axis == 0) {
+      } else {
+        PADDLE_ENFORCE_EQ(
+            quant_axis == 0, true,
+            platform::errors::InvalidArgument(
+                "'quant_axis' of conv2d/depthwise_conv2d op weight dequantized "
+                "by [fake_channel_wise_dequantize_max_abs]should be 0, but "
+                "the received is %d",
+                quant_axis));
+      }
       PADDLE_ENFORCE_EQ(
           weight_scale.size(), static_cast<size_t>(w_dims[0]),
           platform::errors::InvalidArgument(
@@ -528,6 +552,16 @@ void QuantDequantFusePass::FuseDequant(ir::Graph* graph, Scope* scope,
               "conv2d_transpose must be dequantized by "
               "[fake_channel_wise_dequantize_max_abs], but got %s",
               dequant_type));
+      if (quant_axis == 0) {
+      } else {
+        PADDLE_ENFORCE_EQ(
+            quant_axis == 1, true,
+            platform::errors::InvalidArgument(
+                "'quant_axis' of conv2d_transpose op weight dequantized by "
+                "[fake_channel_wise_dequantize_max_abs]should be 1, but "
+                "the received is %d",
+                quant_axis));
+      }
       PADDLE_ENFORCE_EQ(
           weight_scale.size(), static_cast<size_t>(w_dims[1]),
           platform::errors::InvalidArgument(