[Bug middle-end/82117] New: [8 Regression] SPEC CPU2017 502/602 compfail (ICE)

[andrey.y.guskov at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82117

            Bug ID: 82117
           Summary: [8 Regression] SPEC CPU2017 502/602 compfail (ICE)
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrey.y.guskov at intel dot com
  Target Milestone: ---

Since r251650, the following happens @ CPU2017 502 and 602:


during GIMPLE pass: pre
sel-sched.c: In function 'fill_vec_av_set':
sel-sched.c:3689:1: internal compiler error: Segmentation fault
 fill_vec_av_set (av_set_t av, blist_t bnds, fence_t fence,
 ^
0xc97776 crash_signal
<------>../../../gcc/gcc/toplev.c:341
0xdd527d fini_eliminate
<------>../../../gcc/gcc/tree-ssa-pre.c:4863
0xddd8a7 execute
<------>../../../gcc/gcc/tree-ssa-pre.c:5201
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
lto-wrapper: fatal error: gcc returned 1 exit status
compilation terminated.


Option set:
-m64 -march=core-avx2 -mfpmath=sse -Ofast -fno-associative-math -funroll-loops
-flto -z muldefs -std=gnu89 -fopenmp