Re: [Boost-bugs] [Boost C++ Libraries] #9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-04-25 12:29:25

#9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled
-------------------------------+---------------------
  Reporter:  steffen@…         |      Owner:  andysem
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  log
   Version:  Boost 1.54.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------

Comment (by steffen@…):

 I tried to compile it under OpenSUSE 13.1 (gcc 4.8.1) on another system
 (also Core i7 Sandy Bridge) and it failed there with the same error.

 Then I tried to compile it on my older computer under Ubuntu 14.04 (AMd
 Athlon X2 4600), and it failed with an internal compiler error, I guess
 due to the lack of AVX support in that old CPU:

 {{{
 libs/log/src/dump_avx2.cpp: In function
 ‘_ZN5boost3log11v2_mt_posix3aux20dump_data_wchar_avx2EPKvmRSt13basic_ostreamIwSt11char_traitsIwEE.part.4’:
 libs/log/src/dump_avx2.cpp:260:6: warning: AVX vector return without AVX
 enabled changes the ABI [-Wpsabi]
  void dump_data_wchar_avx2(const void* data, std::size_t size,
 std::basic_ostream< wchar_t >& strm)
       ^
 libs/log/src/dump_avx2.cpp:260:6: internal compiler error: in
 convert_move, at expr.c:316
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
 }}}

 Did you use my user-config.jam? Then bjam should have called g++ with
 "-flto=5" option. You can see the compiler options in the output lines of
 bjam. I'll file a bug report for this to GCC and give you the id.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9766#comment:8>
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