While doing some benchmark flag mining on AArch64, I noticed that -fpeel-loops was a mined option often. As a matter of fact, when using it always, even without FDO, it seemed to raise most benchmarks and to leave almost all of the rest flat, with a barely noticeable cost in code-size. It seems to me that it might be safe enough to be implied perhaps at -O3. Is there any reason why this never came into being?
Thank you, -- Evandro Menezes Austin, TX
