Detecting underfined behavior with ICPX

[peizhao]

I've encountered undefined behavior in my SYCL application, leading to incorrect results when compiled with the -O2 option. I attempted to detect this using a sanitizer, configuring my CMake file with compile options like:

   add_compile_options(-Wall -g -O2 -fsanitize=undefined)

      set(SYCL_FLAGS "-fsycl"

         "-fsycl-targets=spir64_x86_64"

         "-fsycl-unnamed-lambda"

         "-Wno-linker-warnings")

.......

target_link_libraries(-fsanitize=undefined)

However, during the build stage, I received a warning  icpx: warning: ignoring '-fsanitize=undefined' option as it is not currently supported for target 'spir64_x86_64-unknown-unknown' [-Woption-ignored]. 

How can I enable a sanitizer with ICPX for my 12th Gen Intel® Core™ i9-12900H CPU?

[Alex_Y_Intel]

-fsanitize=undefined and -fsycl-targets=spir64_x86_64 options cannot be used together. you may want to take off -fsycl-targets=spir64_x86_64, depending on what you want to achieve.