[Bug lto/54728] New: [4.8 regression] ICE in input_gimple_stmt, at gimple-streamer-in.c:254

[dimhen at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54728



             Bug #: 54728

           Summary: [4.8 regression] ICE in input_gimple_stmt, at

                    gimple-streamer-in.c:254

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: lto

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: dim...@gmail.com





gcc version 4.8.0 20120927 (experimental) [trunk revision 191799] (GCC)



$ cat fun1.cpp

#include <sstream>

#include <string>



void fun1(std::string &s)

{

    std::ostringstream os;

    s = os.str();

}

$ sed 's/fun1/fun2/' < fun1.cpp > fun2.cpp

$ g++ -flto -c fun1.cpp

$ g++ -flto -c fun2.cpp

$ g++ fun1.o fun2.o -flto -flto-partition=none -o libx.so

In member function 'str':

lto1: internal compiler error: in input_gimple_stmt, at

gimple-streamer-in.c:254

0xbf6cfb input_gimple_stmt

    /home/dimhen/src/gcc-current/gcc/gimple-streamer-in.c:253

0xbf6cfb input_bb(lto_input_block*, LTO_tags, data_in*, function*, int)

    /home/dimhen/src/gcc-current/gcc/gimple-streamer-in.c:310

0x70d47c input_function

    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:870

0x70d47c lto_read_body

    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:994

0x70d47c lto_input_function_body(lto_file_decl_data*, tree_node*, char const*)

    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:1039

0x4cc9ca lto_materialize_function

    /home/dimhen/src/gcc-current/gcc/lto/lto.c:226

0x4cc9ca materialize_cgraph

    /home/dimhen/src/gcc-current/gcc/lto/lto.c:3045

0x4d137a lto_main()

    /home/dimhen/src/gcc-current/gcc/lto/lto.c:3307

Please submit a full bug report,

with preprocessed source if appropriate.

Please include the complete backtrace with any bug report.

See <http://gcc.gnu.org/bugs.html> for instructions.

lto-wrapper: g++ returned 1 exit status

/usr/bin/ld: fatal error: lto-wrapper failed

collect2: error: ld returned 1 exit status



$ gcc -v

Using built-in specs.

COLLECT_GCC=gcc

COLLECT_LTO_WRAPPER=/usr/local/gcc_current/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper

Target: x86_64-unknown-linux-gnu

Configured with: /home/dimhen/src/gcc-current/configure

--prefix=/usr/local/gcc_current --with-multilib-list=m64 --enable-__cxa_atexit

--enable-shared --enable-checking=df,fold,rtl,tree,yes

--enable-gnu-unique-object --enable-linker-build-id

--enable-languages=c,c++,lto --enable-plugin

--enable-version-specific-runtime-libs

Thread model: posix

gcc version 4.8.0 20120927 (experimental) [trunk revision 191799] (GCC)