[Bug rtl-optimization/99085] [10/11 Regression] ICE: verify_flow_info failed (error: multiple hot/cold transitions found)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99085

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org
           Priority|P3                          |P2
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
            Summary|[11 Regression] ICE:        |[10/11 Regression] ICE:
                   |verify_flow_info failed     |verify_flow_info failed
                   |(error: multiple hot/cold   |(error: multiple hot/cold
                   |transitions found)          |transitions found)
   Last reconfirmed|                            |2021-02-15

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I can reproduce the ICE also with gcc 10:
/usr/src/gcc-10/obj12/gcc/cc1 -quiet -O2 -fgraphite-identity
-fsel-sched-pipelining -fselective-scheduling2 /tmp/pr99085.c
/tmp/pr99085.c: In function ‘foo’:
/tmp/pr99085.c:16:1: error: multiple hot/cold transitions found (bb 15)
   16 | }
      | ^
/tmp/pr99085.c:16:1: error: multiple hot/cold transitions found (bb 11)
during RTL pass: stack
/tmp/pr99085.c:16:1: internal compiler error: verify_flow_info failed
but can't with gcc 9.  As it is with graphite, can't bisect (easily) myself
though.