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From: "steven at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/43056] __builtin_prefetch causes ICE: in rtl_verify_flow_info, at cfgrtl.c:2205 with -fsched2-use-superblocks Date: Sat, 13 Feb 2010 23:18:00 -0000 [thread overview] Message-ID: <20100213231809.15022.qmail@sourceware.org> (raw) In-Reply-To: <bug-43056-14164@http.gcc.gnu.org/bugzilla/> ------- Comment #1 from steven at gcc dot gnu dot org 2010-02-13 23:18 ------- Breakpoint 7, rest_of_handle_sched2 () at ../../trunk/gcc/sched-rgn.c:3534 3534 && ! maybe_skip_selective_scheduling ()) (gdb) p brief_dump_cfg(stderr) Basic block 2 (reachable, rtl) Predecessors: ENTRY [100.0%] (fallthru) Successors: EXIT [100.0%] The .split4 dump (just before .sched2): ;; Function foo (foo) 1 NOTE_INSN_DELETED 3 NOTE_INSN_BASIC_BLOCK 9 NOTE_INSN_PROLOGUE_END 2 NOTE_INSN_FUNCTION_BEG 5 prefetch(`x',0x0,0x3) 10 NOTE_INSN_EPILOGUE_BEG 11 return i 12: barrier 8 NOTE_INSN_DELETED And the .sched2 dump: changing bb of uid 13 unscanned insn changing bb of uid 5 from 2 to 3 deleting block 3 1 NOTE_INSN_DELETED 3 NOTE_INSN_BASIC_BLOCK 9 NOTE_INSN_PROLOGUE_END 2 NOTE_INSN_FUNCTION_BEG 14 NOTE_INSN_EPILOGUE_BEG 11 return 8 NOTE_INSN_DELETED What insn 13? What basic block 3? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43056
next prev parent reply other threads:[~2010-02-13 23:18 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-02-13 13:00 [Bug rtl-optimization/43056] New: " zsojka at seznam dot cz 2010-02-13 23:09 ` [Bug rtl-optimization/43056] " steven at gcc dot gnu dot org 2010-02-13 23:18 ` steven at gcc dot gnu dot org [this message] 2010-02-13 23:29 ` steven at gcc dot gnu dot org 2010-02-14 0:08 ` steven at gcc dot gnu dot org [not found] <bug-43056-4@http.gcc.gnu.org/bugzilla/> 2012-11-11 20:46 ` steven at gcc dot gnu.org 2013-04-04 5:09 ` mpolacek at gcc dot gnu.org 2021-08-27 6:33 ` pinskia at gcc dot gnu.org 2021-08-27 6:46 ` pinskia at gcc dot gnu.org
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