From: | Greg Stark <stark(at)mit(dot)edu> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: pgsql: Further tweaking of print_aligned_vertical(). |
Date: | 2016-01-04 19:01:48 |
Message-ID: | CAM-w4HMWUVBKfvsAdJNPvbxkPCKLJTUtzmysCSeR25DiU2mV=Q@mail.gmail.com |
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On Mon, Jan 4, 2016 at 6:18 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> VAX (simh):
>> https://docs.google.com/presentation/d/1PG-bMU4WiS1pjtBwRvH4cE-nN9y5gj8ZLCO7KMrlvYg/view
>
>> Fuzzer:
>> https://docs.google.com/presentation/d/12Dd9Bhcugkdi2w0ye4T1fy9ccjconJEz9cNthdeyH7k/view
>
> Very cool, thanks!
Incidentally, I did boot up the simulator again the other day because
I had had an idea for how we might get the regression tests to pass.
However the idea didn't pan out. I thought maybe we could compile just
float.c with -msoft-float so that the backend used VAX floats and the
user datatype was represented by IEEE floats. I'm sure there are a few
places where we assume we can convert one to the other but I was
hoping it would be few enough to be manageable to fix up. I wasn't
sure how feasible it was to have a mixed build at all and I was going
to experiment.
However gcc doesn't support -msoft-float on VAX. Apparently
-msoft-float is an implemented by the architecture backend rather than
as a portable general purpose feature :(
--
greg
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