[Bug d/104538] New: gdc/d21: segfault on mips64

[syq at debian dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104538

            Bug ID: 104538
           Summary: gdc/d21: segfault on mips64
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: syq at debian dot org
  Target Milestone: ---

https://buildd.debian.org/status/fetch.php?pkg=gcc-12&arch=mips64el&ver=12-20220214-1&stamp=1644848228&raw=0


The segment is from:
gcc/d/dmd/ctfeexpr.d:
UnionExp changeArrayLiteralLength(const ref Loc loc, TypeArray arrayType,
Expression oldval, size_t oldlen, size_t newlen) 


        if (oldlen != 0)
        {
            assert(oldval.op == EXP.arrayLiteral);
            ArrayLiteralExp ae = cast(ArrayLiteralExp)oldval;
            foreach (size_t i; 0 .. copylen)
                (*elements)[i] = (*ae.elements)[indxlo + i];
        }
        if (elemType.ty == Tstruct || elemType.ty == Tsarray)
        {
            /* If it is an aggregate literal representing a value type,
             * we need to create a unique copy for each element
             */
            foreach (size_t i; copylen .. newlen)
                (*elements)[i] = copyLiteral(defaultElem).copy();
        }
        else
        {
            foreach (size_t i; copylen .. newlen)
                (*elements)[i] = defaultElem;
        }
>>>>    emplaceExp!(ArrayLiteralExp)(&ue, loc, arrayType, elements);
        ArrayLiteralExp aae = cast(ArrayLiteralExp)ue.exp();
        aae.ownedByCtfe = OwnedBy.ctfe;