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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/99510] New: [11 Regression] Compile time hog
 in build_aligned_type since r11-7123-g63538886d1f7fc7c
Date: Wed, 10 Mar 2021 09:09:56 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99510

            Bug ID: 99510
           Summary: [11 Regression] Compile time hog in build_aligned_type
                    since r11-7123-g63538886d1f7fc7c
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: compile-time-hog
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---

I noticed that here:
https://lnt.opensuse.org/db_default/v4/CPP/graph?plot.0=3D226.764.8&plot.1=
=3D14.764.8&

$ gfortran -c ./polyhedron/lin/source/doduc.f90 -Ofast -march=3Dznver2

takes now very long time.=