enable self-defined index data in testLayerGrad.

paddle/gserver/tests/LayerGradUtil.cpp

@@ -388,6 +388,11 @@ void initDataLayer(TestConfig testConf,
         data.grad->zeroMem();
         break;
       case INPUT_SELF_DEFINE_DATA: {
+        if (testConf.inputDefs[i].ids.size()) {
+          data.ids = IVector::create(testConf.inputDefs[i].ids.size(), useGpu);
+          data.ids->copyFrom(testConf.inputDefs[i].ids.data(),
+                             testConf.inputDefs[i].ids.size());
+        } else if (testConf.inputDefs[i].selfDefinedData) {
           size_t height = testConf.inputDefs[i].selfDefinedData->getHeight();
           size_t width = testConf.inputDefs[i].selfDefinedData->getWidth();
           CHECK_GT(static_cast<int>(height), 0);
@@ -396,6 +401,10 @@ void initDataLayer(TestConfig testConf,
           data.grad = Matrix::create(height, width, false, useGpu);
           data.value->copyFrom(*testConf.inputDefs[i].selfDefinedData);
           data.grad->zeroMem();
+        } else {
+          LOG(FATAL) << "No self-defined data are given.";
+          return;
+        }
 
         const std::vector<int>& labelSeqStartPositions =
             testConf.inputDefs[i].labelSeqStartPositions;

paddle/gserver/tests/LayerGradUtil.h

@@ -68,6 +68,7 @@ struct InputDef {
   std::vector<int> labelInitValue;
   std::vector<int> labelSeqStartPositions;
   std::vector<int> labelSubSeqStartPositions;
+  std::vector<int> ids;
   MatrixPtr selfDefinedData;
 
   InputDef(InputType type, string nameIn, size_t dimIn, size_t sizeIn) {
@@ -95,6 +96,23 @@ struct InputDef {
     isStatic = false;
   }
 
+  InputDef(InputType type,
+           string nameIn,
+           std::vector<int> ids,
+           std::vector<int> selfDefinedSeqStartPos = {},
+           std::vector<int> selfDefinedSubSeqStartPos = {})
+      : labelSeqStartPositions(selfDefinedSeqStartPos),
+        labelSubSeqStartPositions(selfDefinedSubSeqStartPos),
+        ids(ids) {
+    selfDefinedData = nullptr;
+    inputType = type;
+    name = nameIn;
+    dim = 0;
+    sparse = {""};
+    paraSize = 0;
+    isStatic = false;
+  }
+
   InputDef(InputType type,
            string nameIn,
            size_t dimIn,