From a04b499e22bff6ecd08551f02c4c762b4f1bc17c Mon Sep 17 00:00:00 2001
From: 6clc <chaoliu.lc@foxmail.com>
Date: Sun, 25 Jun 2023 16:54:35 +0800
Subject: [PATCH] tmp update to c++17 of cinn-only test

---
 cmake/cinn.cmake               | 29 +++++++++++++++++++++--------
 cmake/cinn/core.cmake          |  2 +-
 cmake/cinn/external/absl.cmake |  1 +
 paddle/cinn/pybind/bind.h      |  2 --
 4 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/cmake/cinn.cmake b/cmake/cinn.cmake
index 9a286968545e9..594eed3e116d2 100644
--- a/cmake/cinn.cmake
+++ b/cmake/cinn.cmake
@@ -2,6 +2,22 @@ set(CINN_THIRD_PARTY_PATH "${CMAKE_BINARY_DIR}/third_party")
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(DOWNLOAD_MODEL_DIR "${CINN_THIRD_PARTY_PATH}/model")
 
+string(REGEX MATCH "-std=(c\\+\\+[^ ]+)" STD_FLAG "${CMAKE_CXX_FLAGS}")
+if (NOT STD_FLAG)
+  if (NOT CMAKE_CXX_STANDARD)
+    message(STATUS "STD_FLAG and CMAKE_CXX_STANDARD not found, using default flag: -std=c++17")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+    set(CMAKE_CXX_STANDARD 17)
+  else()
+    message(STATUS "Got CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}, append -std=c++${CMAKE_CXX_STANDARD} to CMAKE_CXX_FLAGS")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++${CMAKE_CXX_STANDARD}")
+  endif()
+else()
+  string(REGEX MATCH "([0-9]+)" STD_VALUE "${STD_FLAG}")
+  message(STATUS "Got STD_FLAG=${STD_FLAG}, set CMAKE_CXX_STANDARD=${STD_VALUE}")
+  set(CMAKE_CXX_STANDARD ${STD_VALUE})
+endif()
+
 if(NOT DEFINED ENV{runtime_include_dir})
   message(
     STATUS
@@ -54,6 +70,7 @@ if(WITH_GPU)
 
   cuda_select_nvcc_arch_flags(ARCH_FLAGS Auto)
   list(APPEND CUDA_NVCC_FLAGS ${ARCH_FLAGS})
+  set(CMAKE_CUDA_STANDARD ${CMAKE_CXX_STANDARD})
 
   message(
     STATUS
@@ -64,14 +81,10 @@ if(WITH_GPU)
 
   find_library(CUDASTUB libcuda.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64/stubs/
                                          REQUIRED)
-  find_library(CUBLAS libcublas.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64
-                                         /usr/lib REQUIRED)
-  find_library(CUDNN libcudnn.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64 /usr/lib
-                                       REQUIRED)
-  find_library(CURAND libcurand.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64
-                                         /usr/lib REQUIRED)
-  find_library(CUSOLVER libcusolver.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64
-                                             /usr/lib REQUIRED)
+  find_library(CUBLAS libcublas.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64 /usr/lib /usr/lib64 REQUIRED)
+  find_library(CUDNN libcudnn.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64 /usr/lib /usr/lib64 REQUIRED)
+  find_library(CURAND libcurand.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64 /usr/lib /usr/lib64 REQUIRED)
+  find_library(CUSOLVER libcusolver.so HINTS ${CUDA_TOOLKIT_ROOT_DIR}/lib64 /usr/lib /usr/lib64 REQUIRED)
 endif()
 
 set(cinnapi_src CACHE INTERNAL "" FORCE)
diff --git a/cmake/cinn/core.cmake b/cmake/cinn/core.cmake
index d76b59732827f..2f5019b6eb027 100644
--- a/cmake/cinn/core.cmake
+++ b/cmake/cinn/core.cmake
@@ -151,7 +151,7 @@ function(cinn_nv_test TARGET_NAME)
     set(multiValueArgs SRCS DEPS ARGS)
     cmake_parse_arguments(cinn_nv_test "${options}" "${oneValueArgs}"
                           "${multiValueArgs}" ${ARGN})
-    cuda_add_executable(${TARGET_NAME} ${cinn_nv_test_SRCS})
+    cuda_add_executable(${TARGET_NAME} ${cinn_nv_test_SRCS} OPTIONS "-std=c++${CMAKE_CUDA_STANDARD}")
     get_property(os_dependency_modules GLOBAL PROPERTY OS_DEPENDENCY_MODULES)
     target_link_libraries(
       ${TARGET_NAME}
diff --git a/cmake/cinn/external/absl.cmake b/cmake/cinn/external/absl.cmake
index 93c70c54959d4..b7ded7502e281 100644
--- a/cmake/cinn/external/absl.cmake
+++ b/cmake/cinn/external/absl.cmake
@@ -12,6 +12,7 @@ set(OPTIONAL_ARGS
     "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
     "-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}"
     "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}"
+    "-DABSL_CXX_STANDARD=17"
     "-DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}"
     "-DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}"
     "-DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}"
diff --git a/paddle/cinn/pybind/bind.h b/paddle/cinn/pybind/bind.h
index 588f2ea58fa3b..78c8b121580f1 100644
--- a/paddle/cinn/pybind/bind.h
+++ b/paddle/cinn/pybind/bind.h
@@ -23,8 +23,6 @@
 
 namespace pybind11 {
 namespace detail {
-template <typename... Ts>
-struct type_caster<absl::variant<Ts...>> : variant_caster<absl::variant<Ts...>> {};
 
 template <typename Key, typename Value, typename Hash, typename Equal, typename Alloc>
 struct type_caster<absl::flat_hash_map<Key, Value, Hash, Equal, Alloc>>