https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67609
--- Comment #27 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to Vladimir Makarov from comment #25) > So it would be nice to benchmark it. I'll try to do this on > Friday. Practically every SPEC2000 benchmark failed to compile with this patch. GCC crashes in split2 pass with messages like this Error: unrecognizable insn: (insn 381 345 67 3 (set (subreg:V2DF (reg:DF 22 xmm1 [287]) 0) (xor:V2DF (subreg:V2DF (reg:DF 22 xmm1 [287]) 0) (mem/u/c:V2DF (symbol_ref/u:DI ("*.LC6") [flags 0x2]) [2 S16 A128]))) apsi.f:3324 -1 (nil)) apsi.f:3336:0: internal compiler error: in extract_insn, at recog.c:2297 0x9b9848 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/rtl-error.c:109 0x9b9879 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/rtl-error.c:117 0x988907 extract_insn(rtx_insn*) /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:2297 0x988991 extract_insn_cached(rtx_insn*) /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:2188 0x7e3f5d cleanup_subreg_operands(rtx_insn*) /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/final.c:3112 0x98638c split_insn /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:2910 0x98ab77 split_all_insns() /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:2964 0x98abd8 rest_of_handle_split_after_reload /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:3902 0x98abd8 execute /home/cygnus/vmakarov/build1/trunk3/gcc/gcc/recog.c:3931 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.