[Bug c++/14179] [4.4/4.5/4.6/4.7 Regression] out of memory while parsing array with many initializers

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14179

--- Comment #64 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-14 17:06:46 UTC ---
Yep, it turned out that there was a lot of allocation overhead from vector
allocation in the token buffer.  After fixing that as well with the patch at

http://gcc.gnu.org/ml/gcc-patches/2012-01/msg00732.html

this testcase is down to 967MB VM size.  The only obvious area of improvement
left is the 67MB of garbage from unnecessary reshape_init copying, which seems
like more work than it's worth for this testcase, and definitely not something
for 4.7.