[Bug middle-end/97804] New: ICE in output_constructor_register_field varasm.c:5407

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97804

            Bug ID: 97804
           Summary: ICE in output_constructor_register_field
                    varasm.c:5407
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: law at redhat dot com
  Target Milestone: ---

Trunk as of 5d46ec3db21d8c8926f15a634b2d6570536db5f1 faults compiling the
attached code with -O2 -std=c++17 on x86_64:

./cc1plus -O2 -std=c++17 FreeLookCamera.cpp.ii -quiet -w
/builddir/build/BUILD/dolphin-31524288e3b2450eaefff8202c6d26c4ba3f7333/Source/Core/VideoCommon/FreeLookCamera.cpp:305:1:
internal compiler error: in output_constructor_regular_field, at varasm.c:5407
0x1bd1821 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5407
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bd1b62 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5446
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bd1b62 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5446
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bd1b62 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5446
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bd1b62 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5446
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bd1b62 output_constructor_regular_field
        /home/gcc/gcc/gcc/varasm.c:5446
0x1bd2742 output_constructor
        /home/gcc/gcc/gcc/varasm.c:5713
0x1bd0ed0 output_constant
        /home/gcc/gcc/gcc/varasm.c:5222
0x1bc6059 assemble_variable_contents
        /home/gcc/gcc/gcc/varasm.c:2128
0x1bc6afc assemble_variable(tree_node*, int, int, int)
        /home/gcc/gcc/gcc/varasm.c:2307


I haven't tried to reproduce or bisect.  However, I would assume is likely a
regression.