Re: gcc optimization option flags

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Andrew Haley wrote:
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.

Thanks for the clarification.



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