[Bug ipa/80104] New: ICE in initialize_argument_information, at calls.c:1748

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80104

            Bug ID: 80104
           Summary: ICE in initialize_argument_information, at
                    calls.c:1748
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: s390x-linux-gnu

Following test-case fails with ICF with cross-compiler:

$ cat /tmp/tmpcy3o5icn.i
float
a (_Complex float b)
{
  return *&b;
}
float
c (_Complex float b)
{
  return (&b)[0];
}

$ s390x-linux-gnu-gcc -fipa-icf-functions /tmp/tmpcy3o5icn.i
/tmp/tmpcy3o5icn.i: In function ‘c’:
/tmp/tmpcy3o5icn.i:7:1: internal compiler error: in
initialize_argument_information, at calls.c:1748
 c (_Complex float b)
 ^
0x7089ad initialize_argument_information
        .././../gcc/calls.c:1748
0x70a80b expand_call(tree_node*, rtx_def*, int)
        .././../gcc/calls.c:3275
0x8280fc expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        .././../gcc/expr.c:10825
0x834685 store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
        .././../gcc/expr.c:5552
0x8360b0 expand_assignment(tree_node*, tree_node*, bool)
        .././../gcc/expr.c:5321
0x71de0a expand_call_stmt
        .././../gcc/cfgexpand.c:2656
0x71de0a expand_gimple_stmt_1
        .././../gcc/cfgexpand.c:3571
0x71de0a expand_gimple_stmt
        .././../gcc/cfgexpand.c:3737
0x720211 expand_gimple_tailcall
        .././../gcc/cfgexpand.c:3784
0x720211 expand_gimple_basic_block
        .././../gcc/cfgexpand.c:5721
0x725a76 execute
        .././../gcc/cfgexpand.c:6357

It's probably mine.