Missed optimizations in C compilers
I haven&#x27;t worked on ARM much, but I am surprised how often I find sub-optimal code like coming from production compilers.  Here&#x27;s one that I found several years ago in GCC&#x2F;x86-64.  Took a few years to fix:<p><a href="https:&#x2F;&#x2F;gcc.gnu.org&#x2F;bugzilla&#x2F;show_bug.cgi?id=44194" rel="nofollow">https:&#x2F;&#x2F;gcc.gnu.org&#x2F;bugzilla&#x2F;show_bug.cgi?id=44194</a>