Re: "may be unused" warnings for gcc

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org
Date: 2017-02-22T14:26:10Z
Lists: pgsql-hackers

Attachments

On 2/21/17 22:17, Andres Freund wrote:
> I've not run comparisons this year, but late last year I was seeing > 5%
> < 10% benefits - that seems plenty enough to care.

You mean the 5-minute benchmarks on my laptop are not representative? ;-)

Here is a patch that I had lying around that clears the compiler
warnings under -O3 for me.  It seems that they are a subset of what you
are seeing.  Plausibly, as compilers are doing more analysis in larger
scopes, we can expect to see more of these.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Silence -Wmaybe-uninitialized compiler warnings in dbcommands.c.