[Bug tree-optimization/68962] New: [6 Regression] internal compiler error: in vect_analyze_stmt, at tree-vect-stmts.c:8013 when building 416.gamess on aarch64

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68962

            Bug ID: 68962
           Summary: [6 Regression] internal compiler error: in
                    vect_analyze_stmt, at tree-vect-stmts.c:8013 when
                    building 416.gamess on aarch64
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64-unknown-linux-gnu

After r231619 I get an ICE when building 416.gamess from SPEC2006 on
aarch64-none-linux-gnu

The backtrace is:
trans.fppized.f:2086:0:

       SUBROUTINE TRFMCX(NPRINT,ICORBS,IORBS,IORB,DOFOCK,DOEXCH,


internal compiler error: in vect_analyze_stmt, at tree-vect-stmts.c:8013
0xd34d1b vect_analyze_stmt(gimple*, bool*, _slp_tree*)
        $SRC/tree-vect-stmts.c:8013
0xd4b64a vect_slp_analyze_node_operations
        $SRC/tree-vect-slp.c:2237
0xd4b533 vect_slp_analyze_node_operations
        $SRC/tree-vect-slp.c:2221
0xd4b533 vect_slp_analyze_node_operations
        $SRC/tree-vect-slp.c:2221
0xd4b533 vect_slp_analyze_node_operations
        $SRC/tree-vect-slp.c:2221
0xd4b533 vect_slp_analyze_node_operations
        $SRC/tree-vect-slp.c:2221
0xd4f7dc vect_slp_analyze_operations(vec<_slp_instance*, va_heap, vl_ptr>,
void*)
        $SRC/tree-vect-slp.c:2269
0xd546a0 vect_slp_analyze_bb_1
        $SRC/tree-vect-slp.c:2543
0xd546a0 vect_slp_bb(basic_block_def*)
        $SRC/tree-vect-slp.c:2630
0xd56985 execute
        $SRC/tree-vectorizer.c:759
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

The file trans.fppized.f is compiled with:
-mcpu=cortex-a53+crypto -save-temps -Ofast -fomit-frame-pointer
-fno-aggressive-loop-optimizations