[Bug c++/80339] New: internal compiler error: in int_mode_for_mode, at stor-layout.c:406

["mail at sven-woop dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80339

            Bug ID: 80339
           Summary: internal compiler error: in int_mode_for_mode, at
                    stor-layout.c:406
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mail@sven-woop.de
  Target Milestone: ---

Here some internal compiler error I just got. Will work an a reproducer and
submit later. Looks like this issue was reported already several times, but
could never get reproduced (bugs 79733, 79808).

/home/swoop/projects/gcc/latest/usr/local/lib/gcc/x86_64-pc-linux-gnu/7.0.1/include/avx512fintrin.h:10087:48:
internal compiler error: in int_mode_for_mode, at stor-layout.c:406
   return (__mmask16) __builtin_ia32_kortestzhi ((__mmask16) __A,
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
       (__mmask16) __B);
       ~~~~~~~~~~~~~~~~                          
0xd2544b int_mode_for_mode(machine_mode)
        ../../gcc/stor-layout.c:406
0xa007ae emit_move_via_integer
        ../../gcc/expr.c:3289
0xa0d175 emit_move_insn_1(rtx_def*, rtx_def*)
        ../../gcc/expr.c:3670
0xa0d454 emit_move_insn(rtx_def*, rtx_def*)
        ../../gcc/expr.c:3738
0x9f0582 copy_to_reg(rtx_def*)
        ../../gcc/explow.c:585
0x109e6a7 ix86_expand_builtin
        ../../gcc/config/i386/i386.c:37854
0x8d3eb7 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
        ../../gcc/builtins.c:6362
0xa09c2d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc/expr.c:10822
0xa15303 store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
        ../../gcc/expr.c:5552
0xa16b07 expand_assignment(tree_node*, tree_node*, bool)
        ../../gcc/expr.c:5321
0x8f8776 expand_call_stmt
        ../../gcc/cfgexpand.c:2656
0x8f8776 expand_gimple_stmt_1
        ../../gcc/cfgexpand.c:3571
0x8f8776 expand_gimple_stmt
        ../../gcc/cfgexpand.c:3737
0x8fa1ff expand_gimple_basic_block
        ../../gcc/cfgexpand.c:5744
0x8ffcf6 execute
        ../../gcc/cfgexpand.c:6357
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