https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64710
Bug ID: 64710 Summary: [5 Regression] lto1: internal compiler error: Segmentation fault Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: hubicka at ucw dot cz On Linux/x86-64, r219925 gave lto1: internal compiler error: Segmentation fault 0xde9a51 crash_signal ../../src-trunk/gcc/toplev.c:381 0xb13ce8 ipa_merge_profiles(cgraph_node*, cgraph_node*) ../../src-trunk/gcc/ipa-utils.c:637 0x69692f lto_cgraph_replace_node ../../src-trunk/gcc/lto/lto-symtab.c:124 0x6972a8 lto_symtab_merge_symbols_1 ../../src-trunk/gcc/lto/lto-symtab.c:619 0x6972a8 lto_symtab_merge_symbols() ../../src-trunk/gcc/lto/lto-symtab.c:647 0x67a13e read_cgraph_and_symbols ../../src-trunk/gcc/lto/lto.c:3109 0x67c533 lto_main() ../../src-trunk/gcc/lto/lto.c:3436 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. lto-wrapper: fatal error: /export/gnu/import/git/gcc-test-profiled/bld/./prev-gcc/xg++ returned 1 exit status compilation terminated. /usr/local/bin/ld: lto-wrapper failed collect2: error: ld returned 1 exit status make[6]: *** [cc1obj] Error 1 when GCC is configured with --prefix=/usr/5.0.0 --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld --with-build-config=bootstrap-lto --disable-werror --with-fpmath=sse --enable-languages=c,c++,fortran,java,lto,objc and built with "make -j8 profiledbootstrap". r219906 is OK.