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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/53336] New: invalid types in nop conversion
Date: Sun, 13 May 2012 10:54:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53336

             Bug #: 53336
           Summary: invalid types in nop conversion
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dcb314@hotmail.com


Created attachment 27392
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27392
gzipped C++ source code

I just tried to compile the package boost-1.48.0-13
on gcc-4.8 trunk dated 20120513 on an AMD x86_64 box.

The compiler said

/home/dcb/rpmbuild/BUILD/boost_1_48_0/libs/iostreams/src/mapped_file.cpp: In
member function 'boost::iostreams::mapped_file_source::operator
boost::iostreams::mapped_file_source::safe_bool() const':
/home/dcb/rpmbuild/BUILD/boost_1_48_0/libs/iostreams/src/mapped_file.cpp:454:1:
error: invalid types in nop conversion
 mapped_file_source::operator mapped_file_source::safe_bool() const
 ^
<<< Unknown tree: offset_type >>>
bool
D.64148_7 = (<<< Unknown tree: offset_type >>>) D.64147_6;

/home/dcb/rpmbuild/BUILD/boost_1_48_0/libs/iostreams/src/mapped_file.cpp:454:1:
internal compiler error: verify_gimple failed
 mapped_file_source::operator mapped_file_source::safe_bool() const
 ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O2 required.