Move some device compile flags to the call site

Author: leandrolcampos

offload/unittests/CMakeLists.txt

@@ -40,7 +40,7 @@ function(add_offload_test_device_code test_filename test_name)
         OUTPUT ${output_file}
         COMMAND ${CMAKE_C_COMPILER}
         --target=nvptx64-nvidia-cuda -march=${nvptx_arch}
-        -stdlib -nogpulib --cuda-path=${CUDA_ROOT} -flto -fno-builtin ${ARGN}
+        -nogpulib --cuda-path=${CUDA_ROOT} -flto ${ARGN}
         ${SRC_PATH} -o ${output_file}
         DEPENDS ${SRC_PATH}
       )
@@ -64,8 +64,7 @@ function(add_offload_test_device_code test_filename test_name)
         OUTPUT ${output_file}
         COMMAND ${CMAKE_C_COMPILER}
         --target=amdgcn-amd-amdhsa -mcpu=${amdgpu_arch}
-        -stdlib -nogpulib -flto -fno-builtin ${ARGN}
-        ${SRC_PATH} -o ${output_file}
+        -nogpulib -flto ${ARGN} ${SRC_PATH} -o ${output_file}
         DEPENDS ${SRC_PATH}
       )
       add_custom_target(${test_name}.amdgpu DEPENDS ${output_file})

offload/unittests/Conformance/device_code/CMakeLists.txt

@@ -1,3 +1,3 @@
-add_offload_test_device_code(LLVMLibm.c llvm-libm)
+add_offload_test_device_code(LLVMLibm.c llvm-libm -stdlib -fno-builtin)
 
 set(OFFLOAD_CONFORMANCE_DEVICE_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR} PARENT_SCOPE)