[Bug target/87196] New: ICE in vectorizable_load, at tree-vect-stmts.c:8043

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87196

            Bug ID: 87196
           Summary: ICE in vectorizable_load, at tree-vect-stmts.c:8043
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: rdsandiford at googlemail dot com
  Target Milestone: ---

Following causes an ICE:

$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/g++.target/aarch64/sve/catch_2.C
-mstrict-align -Ofast --param vect-epilogues-nomask=1
during GIMPLE pass: vect
In file included from
/home/marxin/Programming/gcc/gcc/testsuite/g++.target/aarch64/sve/catch_2.C:4:
/home/marxin/Programming/gcc/gcc/testsuite/g++.target/aarch64/sve/catch_1.C: In
function ‘void f2(int (*)[100], int*)’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.target/aarch64/sve/catch_1.C:26:1:
internal compiler error: in vectorizable_load, at tree-vect-stmts.c:8043
26 | f2 (int x[40][100], int *y)
   | ^~
0x166907d vectorizable_load
        /home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:8043
0x166ecc4 vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*,
_slp_tree*, _slp_instance*)
        /home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:9720
0x1693065 vect_transform_loop_stmt
        /home/marxin/Programming/gcc/gcc/tree-vect-loop.c:8267
0x1693db9 vect_transform_loop(_loop_vec_info*)
        /home/marxin/Programming/gcc/gcc/tree-vect-loop.c:8489
0x16ba5fb try_vectorize_loop_1
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:943
0x16ba7d9 try_vectorize_loop_1
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:976
0x16ba895 try_vectorize_loop
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:993
0x16baa71 vectorize_loops()
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1075
0x1546e4d execute
        /home/marxin/Programming/gcc/gcc/tree-ssa-loop.c:414