https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85412
Sergei Trofimovich <slyfox at inbox dot ru> changed:
What |Removed |Added
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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
