Heikki Linnakangas wrote:
> Alvaro Herrera wrote:
>> Stefan showed me via Jabber this warning:
>> /tmp/ccM7MfqX.s: Assembler messages:
>> /tmp/ccM7MfqX.s:703: Warning: 00000003fffffffc shortened to
>> 00000000fffffffc
>> /tmp/ccM7MfqX.s:738: Warning: 00000003fffffffc shortened to
>> 00000000fffffffc
>> He says that this comes from trgm_op.c file. I don't get the warning
>> myself obviously, so I started guessing.
>> 3FFFFFFFC = 1111111111111111111111111111111100
>> FFFFFFFC = 11111111111111111111111111111100
>> So the upper 2 bits are being lost (the second number is 32 bits wide).
>> The only thing that I think is related is the usage of VARSIZE(). It
>> looks like 0x3FFFFFFF (actual constant in the toast code) is shift two
>> bits left. I can see no such operation though.
>
> The shift is in postgres.h, SET_VARSIZE_4B. I have no idea where that
> warning is coming from, though. What's the real source behind "ccM7MfqX.s"?
trgm_op.c
I'm not sure that the shift in SET_VARSIZE_4B is applicable here,
because it would have to be passed a len of FFFFFFFF.
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.