http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53426
vincenzo Innocente <vincenzo.innocente at cern dot ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.7.1
Summary|[lto]: |[lto with ipa-pta]:
|ICE:create_variable_info_fo |ICE:create_variable_info_fo
|r at |r at
|../../gcc-trunk/gcc/tree-ss |../../gcc-trunk/gcc/tree-ss
|a-structalias.c:5581 |a-structalias.c:5581
--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch>
2012-05-21 08:37:22 UTC ---
apparently it is quite easy to reproduce and it is due to "-fipa-pta"
for instance using the test case in PR53337
cat boostLto.cc
#include "boost/thread/mutex.hpp"
namespace edm {
namespace rootfix {
boost::mutex* getGlobalMutex();
}
}
boost::mutex* edm::rootfix::getGlobalMutex() {
static boost::mutex m_;
return &m_;
}
c++ -O3 -fPIC -shared -o bha.so boostLto.cc
-I/build/ge/new-binutils/a/slc5_amd64_gcc470/external/boost/1.49.0-cms3/include
-fipa-pta[vocms123] ~/public/ctest/bugs48 $ c++ -O3 -fPIC -flto -shared -o
bha.so boostLto.cc
-I/build/ge/new-binutils/a/slc5_amd64_gcc470/external/boost/1.49.0-cms3/include
[vocms123] ~/public/ctest/bugs48 $ c++ -O3 -fPIC -flto -shared -o bha.so
boostLto.cc
-I/build/ge/new-binutils/a/slc5_amd64_gcc470/external/boost/1.49.0-cms3/include
-fipa-pta
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: c++ returned 1 exit status
/afs/cern.ch/user/i/innocent/w3/gcc47slc5/bin/ld: fatal error: lto-wrapper
failed
collect2: error: ld returned 1 exit status
the preprocessed source of the above source is attached to PR53337 as well
