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[Bug debug/59992] [4.9 Regression] Compilation of insn-recog.c too slow due to var-tracking
- From: "aoliva at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 26 Feb 2014 00:56:56 +0000
- Subject: [Bug debug/59992] [4.9 Regression] Compilation of insn-recog.c too slow due to var-tracking
- Auto-submitted: auto-generated
- References: <bug-59992-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59992
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |aoliva at gcc dot gnu.org
--- Comment #8 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Mine. There are horrible quadratic inefficiencies in vt_initialize(). I've
managed to cut the âvariable trackingâ time down from 1700+ to 5 seconds with a
couple of patches I'm testing now, that I'll attach momentarily.