Clang: Apply `-O0`
Clang: Apply `-O0`

Fix #8986

mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,pexip/meson,pexip/meson,jpakkane/meson,pexip/meson,jpakkane/meson,pexip/meson,pexip/meson,mesonbuild/meson,pexip/meson,jpakkane/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson