[Bug tree-optimization/82228] New: [8 Regression] 416.gamess in SPEC CPU 2006 failed to build

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82228

            Bug ID: 82228
           Summary: [8 Regression] 416.gamess in SPEC CPU 2006 failed to
                    build
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

On x86-64, r252791 gave

$ gfortran -c -o solib.fppized.o -O3 -funroll-loops -ffast-math -ffixed-form
solib.fppized.f
internal compiler error: in vect_get_num_copies, at tree-vectorizer.h:1093
statpt.fppized.f:1080:72:
0x75b2ce vect_get_num_copies
        ../../src-trunk/gcc/tree-vectorizer.h:1092
0x75b2ce vectorizable_live_operation(gimple*, gimple_stmt_iterator*,
_slp_tree*, int, gimple**)
        ../../src-trunk/gcc/tree-vect-loop.c:7035
0x757c33 vect_analyze_stmt(gimple*, bool*, _slp_tree*, _slp_instance*)
        ../../src-trunk/gcc/tree-vect-stmts.c:8690
0x76ae81 vect_analyze_loop_operations
        ../../src-trunk/gcc/tree-vect-loop.c:1756
0x76ae81 vect_analyze_loop_2
        ../../src-trunk/gcc/tree-vect-loop.c:2042
0x76ae81 vect_analyze_loop(loop*, _loop_vec_info*)
        ../../src-trunk/gcc/tree-vect-loop.c:2355
0xf5e00e vectorize_loops()
        ../../src-trunk/gcc/tree-vectorizer.c:685
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.
specmake[3]: *** [solib.fppized.o] Error 1

r252079 is OK.