[Bug d/96301] New: d: internal compiler error: Segmentation fault during RTL pass: expand on armhf/armel/s390x

["ibuclaw at gdcproject dot org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96301

            Bug ID: 96301
           Summary: d: internal compiler error: Segmentation fault during
                    RTL pass: expand on armhf/armel/s390x
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: ibuclaw at gdcproject dot org
  Target Milestone: ---

Seen here https://buildd.debian.org/status/package.php?p=gtk-d&suite=sid

Reduced test, accommodating for struct and static array returns as well.

Compile with '-frelease -fPIC -O2' or '-O2 -fno-assert' to trigger
---
version (Struct)
{
    struct Type
    {
        size_t length;
        int* ptr;
    }
}
else version (Array)
{
    alias Type = int[100];
]
else
{
    alias Type = int[];
}

class Container
{
    Type children;

    void remove(void* data)
    {
        Type remove(Type range)
        {
            auto result = range;
            if (result.front)
                return result;
            assert(0);
        }
        if (data)
            remove(children);
    }
}

int front(Type a)
{
    return a.ptr[0];
}