http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49964
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.08.03 17:37:53 CC| |rth at gcc dot gnu.org Target Milestone|--- |4.7.0 Ever Confirmed|0 |1 --- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-03 17:37:53 UTC --- It is caused by revision 177218: http://gcc.gnu.org/ml/gcc-cvs/2011-08/msg00228.html On Linux/ia32, adding -march=corei7-avx caused: [hjl@gnu-snb-1 src]$ /export/gnu/import/rrs-bootstrap/177218/bld/./gcc/xgcc -shared-libgcc -B/export/gnu/import/rrs-bootstrap/177218/bld/./gcc -nostdinc++ -L/export/gnu/import/rrs-bootstrap/177218/bld/x86_64-unknown-linux-gnu/32/libstdc++-v3/src -L/export/gnu/import/rrs-bootstrap/177218/bld/x86_64-unknown-linux-gnu/32/libstdc++-v3/src/.libs -B/export/gnu/import/rrs-bootstrap/177218/usr/x86_64-unknown-linux-gnu/bin/ -B/export/gnu/import/rrs-bootstrap/177218/usr/x86_64-unknown-linux-gnu/lib/ -isystem /export/gnu/import/rrs-bootstrap/177218/usr/x86_64-unknown-linux-gnu/include -isystem /export/gnu/import/rrs-bootstrap/177218/usr/x86_64-unknown-linux-gnu/sys-include -m32 -I/export/gnu/import/rrs-bootstrap/177218/bld/x86_64-unknown-linux-gnu/32/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/export/gnu/import/rrs-bootstrap/177218/bld/x86_64-unknown-linux-gnu/32/libstdc++-v3/include -I/export/gnu/import/rrs-bootstrap/177218/src/libstdc++-v3/libsupc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -frandom-seed=functexcept.lo -g -O2 -D_GNU_SOURCE -m32 -std=gnu++0x -c ../../../../../src/libstdc++-v3/src/functexcept.cc -fPIC -DPIC -S -march=corei7-avx ../../../../../src/libstdc++-v3/src/functexcept.cc: In function ‘void std::__throw_system_error(int)’: ../../../../../src/libstdc++-v3/src/functexcept.cc:106:62: internal compiler error: in fixup_args_size_notes, at expr.c:3586 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [hjl@gnu-snb-1 src]$