https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78695
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-12-08 CC| |trippels at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #9 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Confirmed with -fstack-protector: Program received signal SIGSEGV, Segmentation fault. 0x0000000010cf2918 in find_alignment_op (insn=0x3fffaf641a00, base_reg=0x3fffaf580300) at ../../gcc/gcc/config/rs6000/rs6000.c:41445 41445 rtx_insn *and_insn = DF_REF_INSN (base_def_link->ref); (gdb) l 41440 41441 struct df_link *base_def_link = DF_REF_CHAIN (base_use); 41442 if (!base_def_link || base_def_link->next) 41443 break; 41444 41445 rtx_insn *and_insn = DF_REF_INSN (base_def_link->ref); 41446 and_operation = alignment_mask (and_insn); 41447 if (and_operation != 0) 41448 break; 41449 } (gdb) p base_def_link->ref->base->insn_info $1 = (df_insn_info *) 0x0