On 06/25/2007 02:41 AM, Adrian Bunk wrote:
The interesting questions are: Does -Os still sometimes generate faster code with gcc 4.2? If yes, why?
I would wager that the CPU type makes more of a difference than the compiler version. That is, I'd expect my Duron with it's "puny" 64K L1 to have a very different profile than it's Athlon brother with 256K L1. Not to mention CPUs with as little as 8K L1 (P1).
I can't quote numbers -- it's a bit hard to test those things anyway as it's a system-global effect and not su much that's easily isolated in a dedicated benchmark.
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