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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/64928] [4.8/4.9/5 Regression] Inordinate cpu time and memory usage in "phase opt and generate" with -ftest-coverage -fprofile-arcs
Date: Mon, 09 Feb 2015 14:31:00 -0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 4.9.2
X-Bugzilla-Keywords: compile-time-hog, memory-hog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64928

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |memory-hog
          Component|other                       |middle-end
      Known to work|                            |4.4.7
   Target Milestone|---                         |4.8.5
            Summary|Inordinate cpu time and     |[4.8/4.9/5 Regression]
                   |memory usage in "phase opt  |Inordinate cpu time and
                   |and generate" with          |memory usage in "phase opt
                   |-ftest-coverage             |and generate" with
                   |-fprofile-arcs              |-ftest-coverage
                   |                            |-fprofile-arcs

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Given from the description I suppose that non-profiling/coverage mode is fine.