Looking at the compiler parameters I see:
-Og generate smaller code
-OG generate faster code (default)
Is the difference in speed/size significant?
-O1 level 1 optimizations (quick optimizations)
-O2 level 2 optimizations (-O1 + slower optimizations)
-O3 level 3 optimizations (-O2 repeatedly, max 5 times)
Is it safe to use any of those?
When, if at all, it could be a bad idea to use them?
-Op<x> target processor:
-Op1 set target processor to 386/486
-Op2 set target processor to Pentium/PentiumMMX (tm)
-Op3 set target processor to PPro/PII/c6x86/K6 (tm)
-Op4 set target processor to Pentium 4 (tm)
-Op5 set target processor to Pentium M (tm)
Which of those would be 586 and 686 type CPUs?
Specially AMD cpus.
Like.
CPU: AMD Duron(tm) Processor (902.05-MHz 686-class CPU)
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