https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65761
--- Comment #5 from Mike Hommey <mh+gcc at glandium dot org> --- I can reproduce with: g++ -m32 -march=pentiumpro -o Unified_cpp_js_src5.o -c -fPIC -Wno-invalid-offsetof -fno-exceptions -std=gnu++0x -fprofile-use -fprofile-correction -O3 -fno-omit-frame-pointer Unified_cpp_js_src5.i It doesn't happen when removing -fno-omit-frame-pointer.