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[Bug rtl-optimization/69609] block reordering consumes an inordinate amount of time, REE consumes much memory
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 08 Feb 2016 18:56:54 +0000
- Subject: [Bug rtl-optimization/69609] block reordering consumes an inordinate amount of time, REE consumes much memory
- Auto-submitted: auto-generated
- References: <bug-69609-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69609
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at redhat dot com
Summary|[6 Regression] block |block reordering consumes
|reordering consumes an |an inordinate amount of
|inordinate amount of time, |time, REE consumes much
|REE consumes much memory |memory
--- Comment #4 from Jeffrey A. Law <law at redhat dot com> ---
Note that while slow and memory hungry, this, AFAICT isn't a gcc-6 regression.
gcc-4.9, gcc-5 and gcc-6 all have comparable behaviour. gcc-6 does try to PRE
this code per a conscious decision to allow PRE to allocate more memory in
gcc-6.