5.7.7.39 Rerun-cse-after-loop Option
The -frerun-cse-after-loop
option reruns common subexpression elimination (CSE)
optimizations after loop optimizations has been performed.
This option is automatically enabled at optimization levels -O2
,
-O3
, and -Os
.
The -fno-rerun-cse-after-loop
form of this option does not rerun the CSE
optimizations.