Lahey/GNU Fortran

{ -o0 | -o1 | -o2 | -o3 | -os | -ofast }

Optimization Level

Compile only. Default: -o2

GFortran options: -o0, -o1, -o2, -o3, -os, -ofast

Specify -o0 to disable optimizations.

Specify -o1 to perform level-1 optimizations.

Specify -o2 to perform level-2 optimizations.