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Re: optimization/9624: Stack space allocation too gratuitious
- From: bangerth at dealii dot org
- To: dath at ficker dot net, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org
- Date: 8 Feb 2003 00:33:46 -0000
- Subject: Re: optimization/9624: Stack space allocation too gratuitious
- Reply-to: bangerth at dealii dot org, dath at ficker dot net, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
Old Synopsis: Stack space allocation for automatic variables seems incorrect in many cases
New Synopsis: Stack space allocation too gratuitious
State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Sat Feb 8 00:33:46 2003
State-Changed-Why:
Confirmed. Martin Buchholz send a couple of optimization
reports a couple of weeks ago, in which I also documented
this. Note that allocating too much stack space is not
wrong, it's just a waste. And it reduces locality of data
with the usual problems with cache sizes.
W.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9624