[Bug rtl-optimization/90007] New: [9 Regression] ICE in extract_constrain_insn_cached, at recog.c:2223

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90007

            Bug ID: 90007
           Summary: [9 Regression] ICE in extract_constrain_insn_cached,
                    at recog.c:2223
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: x86_64-pc-linux-gnu

gcc-9.0.0-alpha20190407 snapshot (r270192) ICEs when compiling the following
testcase w/ -march=bdver1 (=bdver2) -mfpmath=387 -O1 (-O2, -O3, -Ofast)
-fschedule-insns -fselective-scheduling:

void
qj (int b9, int r9, int k4, int k0, int e7)
{
  (void) b9;
  (void) r9;
  (void) k4;

  while (!!k0 == e7 * 1.1)
    {
    }
}

% x86_64-pc-linux-gnu-gcc-9.0.0-alpha20190407 -march=bdver1 -mfpmath=387 -O1
-fschedule-insns -fselective-scheduling -c nhzbpwxv.c
nhzbpwxv.c: In function 'qj':
nhzbpwxv.c:11:1: error: insn does not satisfy its constraints:
   11 | }
      | ^
(insn 39 0 0 (set (reg:DF 95)
        (float:DF (reg:SI 36 r8 [ e7 ]))) 172 {*floatsidf2}
     (expr_list:REG_DEAD (reg:SI 98)
        (nil)))
during RTL pass: sched1
nhzbpwxv.c:11:1: internal compiler error: in extract_constrain_insn_cached, at
recog.c:2223
0x66a363 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/rtl-error.c:108
0x66a389 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/rtl-error.c:118
0x6685a6 extract_constrain_insn_cached(rtx_insn*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/recog.c:2223
0x12b020f get_attr_type(rtx_insn*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/config/i386/i386.md:2288
0x12d6805 internal_dfa_insn_code_bdver1(rtx_insn*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/config/i386/i386.md:15343
0x12c4100 dfa_insn_code
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/build/gcc/insn-automata.c:158875
0x12c4100 state_transition(void*, rtx_def*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/build/gcc/insn-automata.c:158890
0xd0b74a estimate_insn_cost
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:4293
0xd17aab get_expr_cost
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:4324
0xd17aab choose_best_insn
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:4353
0xd17aab find_best_expr
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:4403
0xd17aab fill_insns
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:5550
0xd17aab schedule_on_fences
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7368
0xd17aab sel_sched_region_2
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7506
0xd185e8 sel_sched_region_1
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7548
0xd1a111 sel_sched_region(int)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7649
0xd1a111 sel_sched_region(int)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7634
0xd1acc8 run_selective_scheduling()
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sel-sched.c:7735
0xcf915d rest_of_handle_sched
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sched-rgn.c:3717
0xcf915d execute
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190407/work/gcc-9-20190407/gcc/sched-rgn.c:3827