M R Swami Reddy wrote: >> >> They do, and that's right. Unless you select -O you don't get any >> optimizations, no matter what other flags you set. > > Thank you very much for the clarification. > Do I need to set -O1 for case-1 and case-2: "-O followed by disabling > all -O1 flags" (ie -O0 equivalently)? You won't get exactly the same results as -O0 no matter what you do, since a lot of optimizations are just enabled by -O. Andrew.
