4 ms·

GCC does with the infamous -ffast-math as well.

• gpderetta 24d ago
  IIRC that has been since split out of the flag and need to be asked for separately at link time.
  • jcranmer 24d ago
    If you use -ffast-math when linking an executable but not a shared library, both gcc and clang will link in crtfastmath.o which has the bit of code to set the DAZ/FTZ flags.
    • deleted 23d ago
      [deleted]
    • gpderetta 23d ago
      right, but the issue was that if an application was linked with a library that happened to link with a fast-math shared library, it would unknowingly bring along the crt code. Now the only way to get it is to use the fast-math flag when linking the final binary, which at least is an explicit request.