http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58084
--- Comment #7 from Hans-Peter Nilsson <hp at gcc dot gnu.org> --- For the record, I'm logging the following regression for cris-axis-elf in this PR as well, because: 1: It's lto 2: The regression is observed introduced in the same interval locally: (201466:201470] 3: While likely reproducible with a complete toolchain, last I looked -save-temps didn't do much to help lto debuggability, nor was there equivalent machinery, so not seeing it as helpful in a separate PR. I'll make it a separate PR if I see separate changes in behavior (like torture/pr8081.c fixed but torture/pr48661.C not). Running /tmp/hpautotest-gcc0/gcc/gcc/testsuite/g++.dg/torture/dg-torture.exp ... FAIL: g++.dg/torture/pr48661.C -O2 -flto -fno-use-linker-plugin -flto-partition=none (internal compiler error) FAIL: g++.dg/torture/pr48661.C -O2 -flto -fno-use-linker-plugin -flto-partition=none (test for excess errors) FAIL: g++.dg/torture/pr48661.C -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects (internal compiler error) FAIL: g++.dg/torture/pr48661.C -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects (test for excess errors) WARNING: g++.dg/torture/pr48661.C -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects compilation failed to produce executable In g++.log: Executing on host: /tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/g++/../../xg++ -B/tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/g++/../../ /tmp/hpautotest-gcc1/gcc/gcc/testsuite/g++.dg/torture/pr48661.C -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libstdc++-v3/include/cris-elf -I/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libstdc++-v3/include -I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/libsupc++ -I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/include/backward -I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -O2 -flto -fno-use-linker-plugin -flto-partition=none -isystem /tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./newlib/targ-include -isystem /tmp/hpautotest-gcc1/gcc/newlib/libc/include -B/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./libgloss/cris/ -L/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./libgloss/cris -L/tmp/hpautotest-gcc1/gcc/libgloss/cris -B/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./newlib/ -L/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./newlib -sim3 -L/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./libstdc++-v3/src/.libs -B/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./libstdc++-v3/src/.libs -lm -o ./pr48661.exe (timeout = 300) In member function '_ZTv0_n12_NK1D1mEv': lto1: internal compiler error: Segmentation fault 0x7ea965 crash_signal /tmp/hpautotest-gcc1/gcc/gcc/toplev.c:335 0x524936 contains_struct_check /tmp/hpautotest-gcc1/gcc/gcc/tree.h:3803 0x524936 fold_build_pointer_plus_loc /tmp/hpautotest-gcc1/gcc/gcc/tree.h:5860 0x524936 thunk_adjust /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1297 0x5264c3 expand_thunk(cgraph_node*) /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1440 0x526d5b assemble_thunks_and_aliases /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1549 0x526daa assemble_thunks_and_aliases /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1565 0x526f42 expand_function /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1675 0x527cb0 expand_all_functions /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1717 0x527cb0 compile() /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:2054 0x4acbd6 lto_main() /tmp/hpautotest-gcc1/gcc/gcc/lto/lto.c:3843 $ c++filt _ZTv0_n12_NK1D1mEv virtual thunk to D::m() const (Shouldn't the "In member function" error message refer to the demangled name?)