[Bug c++/15038] New: ICE on template instantiation

[peter at empeg dot com]

GCC 3.4.0 release, bootstrapped native compiler for x86 linux. (Also happens
with i686-linux cross-compiler to xscale-elf.)

The authors of the code probably meant to declare the ByteCount constructor
"explicit", but it shouldn't ICE just because they didn't.

This is a regression from both GCC 2.95.3 and 3.3.2 -- they both compile this fine.

Full compiler version:
----
Reading specs from /home/peter/gcc3temp/lib/gcc/i686-empeg-linux/3.4.0/specs
Configured with: ../gcc-3.4.0/configure --build=i686-empeg-linux
--target=i686-empeg-linux --host=i686-empeg-linux --prefix=/home/peter/gcc3temp
--enable-languages=c,c++
Thread model: posix
gcc version 3.4.0
----

Compiler output:
----
vismgr.cpp: In member function `bool Visual::DrawsAllPixels() const':
vismgr.cpp:30: internal compiler error: in instantiate_template, at cp/pt.c:8668
Please submit a full bug report,
with preprocessed source if appropriate.
----

Preprocessed file:
----
# 1 "vismgr.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "vismgr.cpp"
typedef long long LONGLONG;

class ByteCount
{
public:
    typedef LONGLONG BaseType;
    BaseType m_bytes;

    template<typename T>
    inline ByteCount( T bytes ) :
        m_bytes( static_cast<BaseType>(bytes) )
    {
    }


    friend bool operator!=( const ByteCount &x, const ByteCount &y );
};

class Visual
{
public:
    int m_render_type;
    bool m_fullscreen;
    enum { Render_transparent = 1,
    Render_opaque,
    Render_modify,
           Render_16bit};
    bool DrawsAllPixels() const
    {
 return m_fullscreen && (m_render_type != Render_modify);
    }
};
----

-- 
           Summary: ICE on template instantiation
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: peter at empeg dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: u686-linux-gnu
  GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15038