[Bug debug/43776] cpu hog with '-O1 -g2' / var-tracking issue?

[Bug debug/43776] cpu hog with '-O1 -g2' / var-tracking issue?

[pluto at agmk dot net]

------- Comment #1 from pluto at agmk dot net  2010-04-17 09:11 -------
Created an attachment (id=20406)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20406&action=view)
testcase.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43776

[Bug debug/43776] New: cpu hog with '-O1 -g2' / var-tracking issue?

[pluto at agmk dot net]

here's a small testcase that shows cpu hog in 4.5.
for bigger files, the hog is much bigger :(

$ time g++43 1.ii -c -O1 -g2
g++43 1.ii -c -O1 -g2  11,25s user 0,20s system 99% cpu 11,474 total

$ time g++44 1.ii -c -O1 -g2
g++44 1.ii -c -O1 -g2  8,53s user 0,25s system 99% cpu 8,795 total

$ time g++45 1.ii -c -O1 -g2
1.ii: In member function 'void es::ClockAnalyzer::initPrimitives()':
1.ii:38722:7: note: variable tracking size limit exceeded with
-fvar-tracking-assignments, retrying without
g++45 1.ii -c -O1 -g2  34,73s user 0,45s system 99% cpu 35,237 total


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           Summary: cpu hog with '-O1 -g2' / var-tracking issue?
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pluto at agmk dot net
  GCC host triplet: x86_64-gnu-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43776

[Bug debug/43776] cpu hog with '-O1 -g2' / var-tracking issue?

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-04-17 11:16 -------
That's the usual KDE var-tracking issue.  Do we still have a PR open to mark
this as a dup of?


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43776

[Bug debug/43776] cpu hog with '-O1 -g2' / var-tracking issue?

[pluto at agmk dot net]

------- Comment #3 from pluto at agmk dot net  2010-05-16 12:22 -------


*** This bug has been marked as a duplicate of 41371 ***


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pluto at agmk dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43776