olegolegovich

4 ms·

1. 1.▲
   by olegolegovich 10y ago

   > A compiler that conforms to the ABI generates code which clears the flag, if necessary. I'm sorry, I do not follow. The conforming compiler expects that the functions are called with the clear flag. The non-conforming kernel on th
2. 2.▲
   by olegolegovich 10y ago

   > The flag can have arbitrary value in on entry to memcpy in an ordinary situation not involving threads or signals. It can not have arbitrary value on entry. x86-64 ABI mandates that the flag is cleared before any function is called (3.
3. 3.▲
   by olegolegovich 10y ago

   The x86-64 ABI does not require frame pointer setup: https://godbolt.org/g/10URYW
4. 4.▲
   by olegolegovich 10y ago

   Do you have benchmarks, supporting "~break-even vs. 128 bit AVX on Ivy Bridge from 128 bytes up to 2KB" as I have not found it to be the case at least on Haskell (my benchmarking code is @ https://bitbucket.org/ol