http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58318
--- Comment #2 from Zhendong Su <su at cs dot ucdavis.edu> --- > did you compare trunk with --enable-checking=release? Richard, you are right. Below is my 4.8 config: $ gcc-4.8 -v Using built-in specs. COLLECT_GCC=gcc-4.8 COLLECT_LTO_WRAPPER=/usr/local/gcc-4.8/libexec/gcc/x86_64-unknown-linux-gnu/4.8.1/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-4.8.1/configure --enable-languages=c,c++,objc,obj-c++,fortran,lto --disable-checking --with-gmp=/usr/local/gcc-4.8 --with-mpfr=/usr/local/gcc-4.8 --with-mpc=/usr/local/gcc-4.8 --with-cloog=/usr/local/gcc-4.8 --prefix=/usr/local/gcc-4.8 Thread model: posix gcc version 4.8.1 (GCC) $
