http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60508
Bug ID: 60508 Summary: internal compiler error: in lra_set_insn_recog_data, at lra.c:1082 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: eugeni.stepanov at gmail dot com Created attachment 32339 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32339&action=edit source code At r208400, GCC is failing with internal compiler error on the attached source generated with csmith. $ gcc -O -S z.c -w z.c: In function ‘fn1’: z.c:33:1: internal compiler error: in lra_set_insn_recog_data, at lra.c:1082 } ^ 0x8aa962 lra_set_insn_recog_data(rtx_def*) ../../gcc/lra.c:1080 0x8ab4cf lra_get_insn_recog_data ../../gcc/lra-int.h:464 0x8ab4cf lra_update_insn_regno_info ../../gcc/lra.c:1749 0x8ab4cf lra_update_insn_regno_info ../../gcc/lra.c:1740 0x8ab6b1 lra_push_insn_1 ../../gcc/lra.c:1802 0x8ab6b1 lra_push_insn(rtx_def*) ../../gcc/lra.c:1810 0x8ab89c push_insns ../../gcc/lra.c:1853 0x8abc65 lra_process_new_insns(rtx_def*, rtx_def*, rtx_def*, char const*) ../../gcc/lra.c:1898 0x8b9df6 curr_insn_transform ../../gcc/lra-constraints.c:3689 0x8bbb84 lra_constraints(bool) ../../gcc/lra-constraints.c:4157 0x8ac4d3 lra(_IO_FILE*) ../../gcc/lra.c:2340 0x86af0e do_reload ../../gcc/ira.c:5457 0x86af0e rest_of_handle_reload ../../gcc/ira.c:5598 0x86af0e execute ../../gcc/ira.c:5627