It is quite believable that trapping does not slow down Firefox. GCC is part of SPECint, and trapping is known not to slow down SPECint GCC. (It does slow down

It is quite believable that trapping does not slow down Firefox. GCC is part of SPECint, and trapping is known not to slow down SPECint GCC. (It does slow down other SPECint benchmarks.)