[Bug c++/48574] New: ICE (regression w.r.t. 4.6.0)

[vincenzo.innocente at cern dot ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48574

           Summary: ICE (regression w.r.t. 4.6.0)
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vincenzo.innocente@cern.ch


Created attachment 23963
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23963
unfiltered source file (after preprocessor) requires -mavx to compile

with 
data/newusr/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/data/newusr/bin/g++
COLLECT_LTO_WRAPPER=/data/newusr/libexec/gcc/x86_64-unknown-linux-gnu/4.6.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ./configure --prefix=/data/newusr -enable-gold=yes
--enable-lto --with-fpmath=avx --with-build-config=bootstrap-lto
--with-gmp-lib=/usr/local/lib64 --with-mpfr-lib=/usr/local/lib64
-with-mpc-lib=/usr/local/lib64
Thread model: posix
gcc version 4.6.1 20110408 (prerelease) (GCC) 

(and 20110401) 

I get
/data/newusr/bin/g++ -c produceICE.ii -std=c++0x -Wall -mavx
In file included from
/data/CMSSW_4_2_0_pre6/src/CommonTools/RecoAlgos/plugins/EtaPtMinGsfElectronFullCloneSelector.cc:16:0:
/data/CMSSW_4_2_0_pre6/src/CommonTools/RecoAlgos/interface/GsfElectronSelector.h:
In member function 'void
helper::GsfElectronCollectionStoreManager::cloneAndStore(const I&, const I&,
edm::Event&)':
/data/CMSSW_4_2_0_pre6/src/CommonTools/RecoAlgos/interface/GsfElectronSelector.h:49:60:
internal compiler error: Segmentation fault

This the first serious ICE I got compiling many 1000 of source units.

It compiles fine with
g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure
--prefix=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--enable-languages=c,c++,fortran
--with-gmp=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--with-mpfr=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--with-mpc=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--with-ppl=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--with-cloog=/build/460e/slc5_amd64_gcc460/external/gcc/4.6.0
--enable-cloog-backend=isl --enable-shared CC='gcc -fPIC' CXX='c++ -fPIC'
Thread model: posix
gcc version 4.6.0 (GCC)