!5485 Fix a tiny mistake of split ops

Merge pull request !5485 from liuwenhao/lite

build.bat

@@ -20,14 +20,14 @@ IF NOT EXIST "%BASEPATH%/build" (
     md "build"
 )
 
-cd "%BASEPATH%/build"
+cd %BASEPATH%/build
 set BUILD_PATH=%CD%
 
 IF NOT EXIST "%BUILD_PATH%/mindspore" (
     md "mindspore"
 )
 
-cd "%CD%/mindspore"
+cd %CD%/mindspore
 
 IF "%1%" == "lite" (
     call :gene_gtest
@@ -56,7 +56,7 @@ IF "%1%" == "lite" (
         echo "build fail."
         goto run_fail
     ) ELSE (
-        cd "%BASEPATH%/output"
+        cd %BASEPATH%/output
         rd /s /q _CPack_Packages
     )
 ) ELSE (
@@ -78,22 +78,22 @@ IF "%1%" == "lite" (
     )
 )
 
-cd "%BASEPATH%"
+cd %BASEPATH%
 
 goto run_eof
 
 :run_cmake
-    cd "%BUILD_PATH%/mindspore"
+    cd %BUILD_PATH%/mindspore
     cmake -DBUILD_DEVICE=on -DBUILD_CONVERTER=on -DPLATFORM_ARM64=off -DSUPPORT_TRAIN=off ^
     -DCMAKE_BUILD_TYPE=Release -DSUPPORT_GPU=off -DBUILD_MINDDATA=off -DOFFLINE_COMPILE=off ^
     -G "CodeBlocks - MinGW Makefiles" "%BASEPATH%/mindspore/lite"
 GOTO:EOF
 
 :gene_gtest
-    cd "%BASEPATH%/third_party"
+    cd %BASEPATH%/third_party
     IF EXIST googletest rd /s /q googletest
     git submodule update --init --recursive googletest
-    cd "%BUILD_PATH%/mindspore"
+    cd %BUILD_PATH%/mindspore
 GOTO:EOF
 
 :gene_protobuf
@@ -111,22 +111,22 @@ GOTO:EOF
 
 :gene_flatbuffer
     SET FLATC="%BASEPATH%/build/mindspore/_deps/flatbuffers-src/_build/flatc"
-    SET FLAT_DIR="%BASEPATH%/mindspore/lite/schema"
+    SET FLAT_DIR=%BASEPATH%/mindspore/lite/schema
     cd %FLAT_DIR%
     IF EXIST inner rd /s /q inner
     md inner
 
     %FLATC% -c -b *.fbs
-    %FLATC% -c -b --reflect-types --gen-mutable --reflect-names --gen-object-api -o %FLAT_DIR%/inner *.fbs
+    %FLATC% -c -b --reflect-types --gen-mutable --reflect-names --gen-object-api -o "%FLAT_DIR%/inner" *.fbs
 
-    SET FLAT_DIR="%BASEPATH%/mindspore/lite/tools/converter/parser/tflite"
+    SET FLAT_DIR=%BASEPATH%/mindspore/lite/tools/converter/parser/tflite
     cd %FLAT_DIR%
-    %FLATC% -c -b --reflect-types --gen-mutable --reflect-names --gen-object-api -o %FLAT_DIR% *.fbs
-    cd "%BUILD_PATH%/mindspore"
+    %FLATC% -c -b --reflect-types --gen-mutable --reflect-names --gen-object-api -o "%FLAT_DIR%" *.fbs
+    cd %BUILD_PATH%/mindspore
 GOTO:EOF
 
 :run_fail
-    cd "%BASEPATH%"
+    cd %BASEPATH%
     set errorlevel=1
 
 :run_eof

mindspore/lite/src/runtime/kernel/arm/base/split_base.cc

@@ -28,7 +28,11 @@ using mindspore::lite::RET_OK;
 using mindspore::schema::PrimitiveType_Split;
 
 namespace mindspore::kernel {
-int SplitBaseCPUKernel::Init() { return RET_OK; }
+int SplitBaseCPUKernel::Init() {
+  auto split_dim = param->split_dim_;
+  param->split_dim_ = split_dim >= 0 ? split_dim : in_tensors_.front()->shape().size() + split_dim;
+  return RET_OK;
+}
 
 int SplitBaseCPUKernel::ReSize() {
   auto in_tensor = in_tensors_.front();