Add int8 support in fused_multi_transformer_pass and fuse_multi_transformer_layer_pass

paddle/fluid/framework/ir/CMakeLists.txt

@@ -96,6 +96,8 @@ pass_library(shuffle_channel_detect_pass inference)
 pass_library(delete_quant_dequant_op_pass inference)
 pass_library(delete_quant_dequant_filter_op_pass inference)
 pass_library(delete_weight_dequant_linear_op_pass inference)
+pass_library(delete_weight_dequant_linear_op_encoder_pass inference)
+pass_library(delete_weight_dequant_linear_op_decoder_pass inference)
 pass_library(delete_quant_dequant_linear_op_pass inference)
 pass_library(delete_dropout_op_pass inference)
 pass_library(delete_c_identity_op_pass inference)

paddle/fluid/framework/ir/delete_quant_dequant_linear_op_pass.cc

@@ -121,14 +121,27 @@ void DeleteQuantDequantLinearOpPass::ApplyImpl(ir::Graph* graph) const {
         true,
         platform::errors::InvalidArgument(
             "Input scale tensor's place should be CPU."));
-    const float* input_scale_data = input_scale_tensor.data<float>();
-    float input_scale = input_scale_data[0];
+
+    float input_scale;
+    if (input_scale_tensor.dtype() == paddle::experimental::DataType::FLOAT32) {
+      const float* input_scale_data = input_scale_tensor.data<float>();
+      input_scale = input_scale_data[0];
+    } else if (input_scale_tensor.dtype() ==
+               paddle::experimental::DataType::FLOAT16) {
+      const phi::dtype::float16* input_scale_data =
+          input_scale_tensor.data<phi::dtype::float16>();
+      input_scale = static_cast<float>(input_scale_data[0]);
+    } else {
+      PADDLE_THROW(platform::errors::Unimplemented("%d is not supported.",
+                                                   input_scale_tensor.dtype()));
+    }
 
     int nums_any_ops = dequantize_linear_op_out->outputs.size();
     for (int i = 0; i < nums_any_ops; ++i) {
       auto* any_op_desc = dequantize_linear_op_out->outputs[i]->Op();
       any_op_desc->SetAttr("Input_scale_" + quantize_linear_op_x->Var()->Name(),
                            input_scale);
+
       // link x to any_op2
       any_op_desc->RenameInput(dequantize_linear_op_out->Var()->Name(),
                                quantize_linear_op_x->Var()->Name());