fix while register args' precision to kAny (#3408)

lite/core/CMakeLists.txt

@@ -24,13 +24,8 @@ if (NOT LITE_ON_TINY_PUBLISH)
     proto_library(framework_proto SRCS framework.proto)
 endif()
 
-if (LITE_WITH_X86)
 lite_cc_library(variable SRCS variable.cc DEPS tensor)
 lite_cc_library(types SRCS types.cc)
-else()
-lite_cc_library(variable SRCS variable.cc DEPS tensor)
-lite_cc_library(types SRCS types.cc)
-endif()
 lite_cc_library(op_registry SRCS op_registry.cc DEPS kernel)
 lite_cc_library(scope SRCS scope.cc DEPS tensor)
 lite_cc_library(device_info SRCS device_info.cc DEPS tensor)

lite/kernels/arm/while_compute.cc

@@ -46,9 +46,10 @@ void WhileCompute::Run() {
 
 REGISTER_LITE_KERNEL(
     while, kARM, kFloat, kNCHW, paddle::lite::kernels::arm::WhileCompute, def)
-    .BindInput("X", {LiteType::GetTensorListTy(TARGET(kARM))})
+    .BindInput("X", {LiteType::GetTensorListTy(TARGET(kARM), PRECISION(kAny))})
     .BindInput("Condition",
                {LiteType::GetTensorTy(TARGET(kARM), PRECISION(kBool))})
-    .BindOutput("Out", {LiteType::GetTensorListTy(TARGET(kARM))})
+    .BindOutput("Out",
+                {LiteType::GetTensorListTy(TARGET(kARM), PRECISION(kAny))})
     .BindOutput("StepScopes", {LiteType::GetTensorTy(TARGET(kARM))})
     .Finalize();