fix masked_select infer shape (#33167)

PaddlePaddle · Jun 2, 2021 · 9d4722c · 9d4722c
1 parent 47774d9
commit 9d4722c
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/paddle/fluid/operators/masked_select_op.cc b/paddle/fluid/operators/masked_select_op.cc
@@ -26,8 +26,9 @@ class MaskedSelectOp : public framework::OperatorWithKernel {
     OP_INOUT_CHECK(ctx->HasInput("X"), "Input", "Input", "MaskedSelect");
     OP_INOUT_CHECK(ctx->HasInput("Mask"), "Input", "Mask", "MaskedSelect");
     OP_INOUT_CHECK(ctx->HasOutput("Y"), "Output", "Out", "MaskedSelect");
-    framework::DDim output_dims(ctx->GetInputDim("X"));
-    ctx->SetOutputDim("Y", output_dims);
+
+    // output will only be a 1-D Tensor
+    ctx->SetOutputDim("Y", framework::make_ddim({-1}));
     ctx->ShareLoD("X", /*->*/ "Y");
   }