On 10 okt 2006, at 10:05, Daniël Mantione wrote:
If the optimization needs significant processing power, -O3. If it
doesn't
but is debug safe, -O1, if it is not debug safe, -O2.
It's definitely not debug safe, since it messes up stack information.
A separate option -OoTAILREC is IMHO not necessary.
All possible optimizations have their -Oo-switch for individual
enabling disabling (like regvars, peepholeopt, asmcse, stackframe,
loopunroll). It's both useful for debugging the individual
optimizations and in case a user's program is incompatible with a
particular optimization (either due to a bug in the optimization or
an inherent requirement -- e.g., we could add -Oonostackframe at the
end of the compiler switches for the RTL's object unit when compiling
for x86).
Jonas_______________________________________________
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