[Bug rtl-optimization/68173] gcc takes a long time and a lot of memory with -O0 on source file with very large expression

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68173

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-11-20
     Ever confirmed|0                           |1

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  Note the patch in comment #5 was supposed to make us end up with
less pseudos but it didn't really help (much).  Another thing we don't do
at -O0 is aggressive coalescing of SSA vars.

A somewhat smaller (but sill big) testcase would be much nicer to work with
btw.