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[Bug debug/48670] explosion in time and stack usage when using -ggdb
- From: "matt at use dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 20 Apr 2011 23:59:46 +0000
- Subject: [Bug debug/48670] explosion in time and stack usage when using -ggdb
- Auto-submitted: auto-generated
- References: <bug-48670-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48670
--- Comment #3 from Matt Hargett <matt at use dot net> 2011-04-20 23:59:45 UTC ---
When compiling the example with 4.5.2, memory usage peaks at around 216meg on
my Ubuntu 10.10/amd64 machine. With 4.6, it peaks at 3.2gig(!)
In the non-reduced test case, it gets up to 7 gig before the machine (which has
9gig total) starts swapping to the point where I have to kill the process.
Interestingly (maybe), a GCC 4.6 snapshot from early march doesn't exhibit the
problem as badly. It peaks at 'only' 636meg.
PS: Sorry for the missing attachment, not sure why attach isn't working upon
initial submission...