[OpenMP][Offloading] Add -g when compiling deviceRTLs in debug mode

[tianshilei1992]

Summary

Currently when we compile the project in debug mode, -g will not be added to
compilation flag. The bc files generated in different mode are of different size.
When using GPU debuggers like cuda-gdb, it is expected to provide more info
with a debug version of bc lib.

[JonChesterfield]

LG

openmp/libomptarget/deviceRTLs/amdgcn/CMakeLists.txt

56

Should probably rename this, can reasonably imagine someone wants a debug version of one target and not the other. Separate patch though.

openmp/libomptarget/deviceRTLs/amdgcn/CMakeLists.txt

 project(omptarget-amdgcn)
 
 add_custom_target(omptarget-amdgcn ALL)
 
 #optimization level
 set(optimization_level 2)
 
 # Activate RTL message dumps if requested by the user.
 if(LIBOMPTARGET_NVPTX_DEBUG)
-  set(CUDA_DEBUG -DOMPTARGET_NVPTX_DEBUG=-1)
+  set(CUDA_DEBUG -DOMPTARGET_NVPTX_DEBUG=-1 -g)
 endif()
 
 get_filename_component(devicertl_base_directory
   ${CMAKE_CURRENT_SOURCE_DIR}
   DIRECTORY)
 
 set(cuda_sources
   ${CMAKE_CURRENT_SOURCE_DIR}/src/amdgcn_smid.hip

openmp/libomptarget/deviceRTLs/nvptx/CMakeLists.txt

set(bc_flags -S -x c++ -O1 -std=c++14
              -fopenmp -fopenmp-cuda-mode -Xclang -fopenmp-is-device
              -Xclang -target-feature -Xclang +ptx61
              -D__CUDACC__
              -I${devicertl_base_directory}
              -I${devicertl_common_directory}/include
              -I${devicertl_nvptx_directory}/src)
 
 if(${LIBOMPTARGET_NVPTX_DEBUG})
-  list(APPEND bc_flags -DOMPTARGET_NVPTX_DEBUG=-1)
+  list(APPEND bc_flags -DOMPTARGET_NVPTX_DEBUG=-1 -g)
 else()
   list(APPEND bc_flags -DOMPTARGET_NVPTX_DEBUG=0)
 endif()
 
 # Create target to build all Bitcode libraries.
 add_custom_target(omptarget-nvptx-bc)
 
 # Generate a Bitcode library for all the compute capabilities the user requested