Hello,
On Mac Intel I update to ventura 13.6 and I use command line tools with clang 15.0. I have a test making some computations. The compiled code with this last version of clang is 4X times slower. I don't understand why or the source of this regression
my command line is :
clang++ -Ofast -march=native -funroll-loops -flto -DNDEBUG -o a myprog
No chance very slow 4 times slower than clang 13.0 . So I reverted to 13.0.
Is there a way to improve the performance or should wait clang 16.0 or above ?
