https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114761
--- Comment #5 from Alexander Zaitsev <zamazan4ik at tut dot by> --- > Is this based on real code or you just was looking at the differences between > gcc and clang here? Really, not on a real code. I came up with this example when I found that GCC for this example doesn't reorganize branches according to PGO profiles (when Clang does it). I just wondered about this difference in behavior between compilers, and trying to figure out what compiler is "right" here. Regarding generated code efficiency between Clang and GCC in this case. Am I right that in this case ignoring branch probabilities (in the GCC case) doesn't affect actual code performance? Asking it since I am not so proficient in compiler optimizations.
