[Bug tree-optimization/100081] New: [11 Regression] Compile time hog in irange since r11-4135-ge864d395b4e862ce

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100081

            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=50593&action=edit
test-case

Reduced from a yarpgen test-case:

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

while GCC 10 finishes in 20s.