Re: ANSI-strict pointer aliasing rules - Mailing list pgsql-hackers

From Tom Lane
Subject Re: ANSI-strict pointer aliasing rules
Date
Msg-id 11034.1146149342@sss.pgh.pa.us
Whole thread Raw
In response to Re: ANSI-strict pointer aliasing rules  (mark@mark.mielke.cc)
Responses Re: ANSI-strict pointer aliasing rules  (mark@mark.mielke.cc)
List pgsql-hackers
mark@mark.mielke.cc writes:
> Even if it was only 1% - 2%. Isn't it worth it? :-)

No.  According to the ancient saying, "I can make this program
arbitrarily fast ... if it doesn't have to give the right answer".
Percentage-point improvements are not worth the risk of introducing
hard-to-find, compiler-and-hardware-dependent bugs.

Show me how to find/prevent those bugs, and I'm all for going with
the stricter rules.  But you're so far off base with the above argument
that I wonder whether we understand each other at all.
        regards, tom lane


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