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[Bug rtl-optimization/54455] [4.7/4.8 Regression] ICE: RTL check: expected elt 3 type 'B', have '0' (rtx barrier) in compute_bb_for_insn, at cfgrtl.c:418
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 02 Sep 2012 12:10:45 +0000
- Subject: [Bug rtl-optimization/54455] [4.7/4.8 Regression] ICE: RTL check: expected elt 3 type 'B', have '0' (rtx barrier) in compute_bb_for_insn, at cfgrtl.c:418
- Auto-submitted: auto-generated
- References: <bug-54455-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54455
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-02 12:10:45 UTC ---
(In reply to comment #3)
> What does the insns list look like around the BARRIER? (From GDB do:
> "p debug_rtx_list(barrier_insn, -7)" and show the result here.)
(gdb) p debug_rtx_list(r, -7)
(note 28 12 29 3 NOTE_INSN_EPILOGUE_BEG)
(insn/f 29 28 30 3 (set (reg/f:DI 6 bp)
(mem:DI (post_inc:DI (reg/f:DI 7 sp)) [0 S8 A8])) pr54455.c:16 -1
(expr_list:REG_CFA_DEF_CFA (plus:DI (reg/f:DI 7 sp)
(const_int 8 [0x8]))
(nil)))
(jump_insn 30 29 31 3 (simple_return) pr54455.c:16 -1
(nil)
-> simple_return)
(barrier 31 30 15)
(note 15 31 21 ("lab") NOTE_INSN_DELETED_LABEL 3)
(note 21 15 24 NOTE_INSN_DELETED)
(note 24 21 0 NOTE_INSN_DELETED)