https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84939

            Bug ID: 84939
           Summary: internal compiler error: in gimplify_expr, at
                    gimplify.c:12382
           Product: gcc
           Version: 8.0.1
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vegard.nossum at gmail dot com
                CC: webrown.cpp at gmail dot com
  Target Milestone: ---

Input:

struct a {
  void b() {
    struct c {
      int d struct d e(decltype(d));
    };
  }
  a() { (sizeof(char[static_cast<char &&>(d)])); }
} f;

Output:

$ cc1plus 
 void a::b()
<stdin>:4:11: error: expected ';' at end of member declaration
 a::a() a::a() a::a() void __static_initialization_and_destruction_0(int, int)
void _GLOBAL__sub_I_f()
Analyzing compilation unit

<stdin>: In constructor 'a::a()':
<stdin>:7:43: internal compiler error: in gimplify_expr, at gimplify.c:12382
0x222617f gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:12382
0x2219625 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11375
0x2218312 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11556
0x2238683 gimplify_compound_lval
        /home/vegard/git/gcc/gcc/gimplify.c:2969
0x22191c9 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11387
0x2219625 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11375
0x227604c gimplify_modify_expr
        /home/vegard/git/gcc/gcc/gimplify.c:5626
0x221b0e6 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11435
0x221b493 gimplify_target_expr
        /home/vegard/git/gcc/gcc/gimplify.c:6577
0x221b493 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11815
0x2219625 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11375
0x2218f62 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:12159
0x227604c gimplify_modify_expr
        /home/vegard/git/gcc/gcc/gimplify.c:5626
0x221b0e6 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11435
0x2228401 gimplify_stmt(tree_node**, gimple**)
        /home/vegard/git/gcc/gcc/gimplify.c:6658
0x221a50d gimplify_cleanup_point_expr
        /home/vegard/git/gcc/gcc/gimplify.c:6400
0x221a50d gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11811
0x2228401 gimplify_stmt(tree_node**, gimple**)
        /home/vegard/git/gcc/gcc/gimplify.c:6658
0x221bc6b gimplify_statement_list
        /home/vegard/git/gcc/gcc/gimplify.c:1767
0x221bc6b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/vegard/git/gcc/gcc/gimplify.c:11863
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.

Version:

GNU C++14 (GCC) version 8.0.1 20180306 (experimental) (x86_64-pc-linux-gnu)

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