| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Greg Stark <stark(at)mit(dot)edu> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Xi Wang <xi(dot)wang(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [RFC] overflow checks optimized away |
| Date: | 2015-12-03 17:00:21 |
| Message-ID: | 25025.1449162021@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Greg Stark <stark(at)mit(dot)edu> writes:
> On Thu, Dec 3, 2015 at 2:51 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> I can't see us moving the compiler goalposts one inch for this.
>> "I'm going to break building on your compiler in order to work around
>> bugs in somebody else's compiler" isn't gonna fly.
> I was proposing to implement wrappers around them that do the checks
> manually if they're not present.
As long as there's a fallback for compilers without the builtins, fine.
I read your question as suggesting that you were thinking about not
providing a fallback ...
regards, tom lane
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