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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/100081] New: [11 Regression] Compile time hog
 in irange since r11-4135-ge864d395b4e862ce
Date: Wed, 14 Apr 2021 14:21:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100081

            Bug ID: 100081
           Summary: [11 Regression] Compile time hog in irange since
                    r11-4135-ge864d395b4e862ce
           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: aldyh at gcc dot gnu.org, amacleod at redhat dot com
  Target Milestone: ---

Created attachment 50593
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50593&action=3Dedit
test-case

Reduced from a yarpgen test-case:

$ g++ -O3 func.ii -c
... takes at least 8 minutes ...

while GCC 10 finishes in 20s.=