[Bug c++/66387] [5/6 Regression] ICE in make_decl_rtl with lambda

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66387

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |trippels at gcc dot gnu.org

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 35778
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35778&action=edit
Somewhat reduced testcase

A variant that is still unfixed is attached:

trippels@gcc2-power8 example % g++ -c -std=c++14 tag_dispatching.ii
tag_dispatching.ii: In lambda function:
tag_dispatching.ii:113:38: internal compiler error: in make_decl_rtl, at
varasm.c:1313
     N.times.with_index([&](auto) { N - hana::size_t<1>; });
                                      ^
0x10a160d3 make_decl_rtl(tree_node*)
        ../../gcc/gcc/varasm.c:1309
0x104639eb expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc/gcc/expr.c:9581
0x1046d773 expand_expr
        ../../gcc/gcc/expr.h:254
0x1046d773 expand_expr_addr_expr_1
        ../../gcc/gcc/expr.c:7722
0x1046227b expand_expr_addr_expr
        ../../gcc/gcc/expr.c:7850
0x1046227b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc/gcc/expr.c:10724
0x1046dd7f store_expr_with_bounds(tree_node*, rtx_def*, int, bool, tree_node*)
        ../../gcc/gcc/expr.c:5385
0x1047360f expand_assignment(tree_node*, tree_node*, bool)
        ../../gcc/gcc/expr.c:5154
0x10351457 expand_gimple_stmt_1
        ../../gcc/gcc/cfgexpand.c:3401
0x10351457 expand_gimple_stmt
        ../../gcc/gcc/cfgexpand.c:3497
0x10357353 expand_gimple_basic_block
        ../../gcc/gcc/cfgexpand.c:5509
0x10359207 execute
        ../../gcc/gcc/cfgexpand.c:6127
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