http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58380
Bug ID: 58380 Summary: ice in fold_comparison Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Created attachment 30785 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30785&action=edit gzipped C++ source code I just tried to compile package k3d-0.8.0.2-19 with gcc 4.9 trunk dated 20130909. It said /home/dcb/rpmbuild/BUILD/k3d-source-0.8.0.2/k3dsdk/document_plugin_factory.h:48:9: internal compiler error: Segmentation fault inode* create_plugin(iplugin_factory& Factory, idocument& Document) ^ 0xacdd4f crash_signal ../../src/trunk/gcc/toplev.c:335 0x8b7709 fold_comparison ../../src/trunk/gcc/fold-const.c:9052 0x8c0b9b fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*, tree_node*) ../../src/trunk/gcc/fold-const.c:12780 0xaff5d2 cleanup_control_expr_graph ../../src/trunk/gcc/tree-cfgcleanup.c:96 0xaff5d2 cleanup_control_flow_bb ../../src/trunk/gcc/tree-cfgcleanup.c:171 0xaff5d2 cleanup_tree_cfg_bb ../../src/trunk/gcc/tree-cfgcleanup.c:589 0xb01018 cleanup_tree_cfg_1 ../../src/trunk/gcc/tree-cfgcleanup.c:634 0xb01018 cleanup_tree_cfg_noloop ../../src/trunk/gcc/tree-cfgcleanup.c:690 0xb01018 cleanup_tree_cfg() ../../src/trunk/gcc/tree-cfgcleanup.c:745 0xa27a84 execute_function_todo ../../src/trunk/gcc/passes.c:1791 0xa28167 execute_todo ../../src/trunk/gcc/passes.c:1866 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. Here is valgrind helping out with a stack backtrace ==23967== Invalid read of size 2 ==23967== at 0x8B7709: fold_comparison(unsigned int, tree_code, tree_node*, tree_node*, tree_node*) (fold-const.c:9052) ==23967== by 0x8C0B9B: fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*, tree_node*) (fold-const.c:12780) ==23967== by 0xAFF5D2: cleanup_tree_cfg_bb(basic_block_def*) (tree-cfgcleanup.c:96) ==23967== by 0xB01018: cleanup_tree_cfg() (tree-cfgcleanup.c:634) Preprocessed source code attached. Flag -O2 required.