3 ms·

Assembly is not portable.

• nine_k 9y ago
  Are the tricks portable?
  • quacker 9y ago
    "portable" in the sense that the compiler will produce the proper assembly for the platform - choice of x86, ARM, MIPS, 32/64 bit, etc. Whether the "tricks" behave identically across all platforms depends on the trick, I think.
    • pjmlp 9y ago
      Usually those tricks are not even portable across compilers on the same platform. It suffices a change on compiler version with optimizer improvements, or using another vendor's compiler for the tricks to fall apart. In a gigantic code base, with rotating developers, it becomes a very "fun" thing to debug.
      • coldtea 9y ago
        >Usually those tricks are not even portable across compilers on the same platform. That's much less of an issue. If it can work on GCC for example or Clang across platforms, you're OK for tons of platforms, even if you can't change compilers intra-platform.