Bad performance (with GCC 11.3.0 - O3) of a small etude in C

[Georgi Marinov via Gcc]

Hi,
just wanted to let you know that I found that GCC 11.3.0 -O3 is generating code 
with many unnecessary jumps (while CLANG 14.0.1 -O3 not) in a small 
partitioning (for Quicksort) 15 lines of code etude.
In case you are interested I will submit the three disassembly outputs, plus 
ICL 19.0 -O3, ICL is horrible in that, ICL 15.0 was good but they ruined their 
legacy.
Generally, GCC is my target compiler, yet, CLANG is better in my usecases. I 
would like some of your coders to look it up, my wish is GCC to catch up.

Regards