[Bug c++/64630] New: error: invalid reference prefix

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64630

            Bug ID: 64630
           Summary: error: invalid reference prefix
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com

Created attachment 34463
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34463&action=edit
gzipped C++ source code

I just tried to compile the attached C++ code with the latest trunk
dated 20150111 on a Fedora Linux x86_64 box.

The compiler said

/home/dcb/rpmbuild/BUILD/eigen-eigen-b23437e61a07/Eigen/src/Core/SolveTriangular.h:147:15:
error: invalid reference prefix
   static void run(const Lhs& lhs, Rhs& other)
               ^
MEM[base: _630, offset: 0]
cc1plus: note: in statement
# VUSE <.MEM_409>
pretmp_624 = IMAGPART_EXPR <MEM[base: _630, offset: 0]>;

Flag -O2 required.