egcs-1.0.3a: C++ `realloc()' member function causes internal compilererror

[Matthew D. Langston]

Hello all,

I received an egcs C++ internal compiler error this morning while
compiling a third party C++ class library.  I was able to create a tiny
little 12 line test class which reproduces this error, which I've
included below.  The problem only occurs when I compile with
optimization *and* when I have a member function named `realloc()' (but
see below for all of the details).

The version of the egcs C++ compiler I am using is:

  $ g++ -v
  Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.90.29/specs
  gcc version egcs-2.90.29 980515 (egcs-1.0.3 release)

The computer on which I originally compiled and installed egcs, and
which I received the `internal compiler error' for my test class, is a
Pentium II (Dell XPS H266) running RedHat Linux 5.1 (e.g. glibc2) with
all RedHat RPM updates installed at the time I wrote this bug report.

The following C++ class named `BugClass' compiled with optimization
generates an `Internal compiler error'.

  class BugClass
  {
     public:
  
        void foo()
        {
           realloc();
        }
  
        void realloc()
        {}
  };

The exact command I used to reproduce this bug is the following:

  $ g++ -O -c BugClass.cxx -o BugClass.o

The output I received from the C++ compiler is:

  BugClass.cxx: In method `void BugClass::foo()':
  BugClass.cxx:7: Internal compiler error.
  BugClass.cxx:7: Please submit a full bug report to `egcs-bugs@cygnus.com'.

--
Matthew D. Langston
SLD, Stanford Linear Accelerator Center
langston@SLAC.Stanford.EDU
(650) 926-3279