https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85412

Sergei Trofimovich <slyfox at inbox dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |abel at ispras dot ru

--- Comment #7 from Sergei Trofimovich <slyfox at inbox dot ru> ---
(In reply to Sergei Trofimovich from comment #5)
> Slightly shorter reproduced (shrunk with creduce):
> 
> // a.c
> int a, b, c;
> int e(int h) {
>   double d;
>   int f = 1;
>   while (b < 1) {
>     c = d + f;
>     if (b)
>       a /= h;
>     else {
>       long unsigned g;
>       f = 0;
>       d = h / g + h;
>     }
>     b = a / 3;
>   }
> }
> 
> // command:
> // x86_64-pc-linux-gnu-gcc-8.2.0 -c a.c -march=haswell -O2
> -fselective-scheduling2 -fsel-sched-pipelining -fno-tree-ch -fno-tree-loop-im

Bisected this down from gcc-7.3.0 (did not ICE) to gcc-8.
Looks reasonable?

91d7a2f98a6846d6a4ac215abbbcf8e6154b9984 is the first bad commit
commit 91d7a2f98a6846d6a4ac215abbbcf8e6154b9984
Author: abel <abel@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Mon Apr 9 09:08:28 2018 +0000

           PR rtl-optimization/83530

           * sel-sched.c (force_next_insn): New global variable.
           (remove_insn_for_debug): When force_next_insn is true, also leave
only
           next insn in the ready list.
           (sel_sched_region): When the region wasn't scheduled, make another
pass
           over it with force_next_insn set to 1.

           * gcc.dg/pr83530.c: New test.



    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@259228
138bc75d-0d04-0410-961f-82ee72b054a4

:040000 040000 11825cae45f4d9839c242188123117a0a9f96803
87391fd9d4f97ee6fe456d1630f37801dc0bf8cc M      gcc

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