[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
gcc-bugzilla@gcc.gnu.org
Fri Nov 20 08:57:00 GMT 2015
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.
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