diff options
| author | Andrey Belevantsev <abel@ispras.ru> | 2010-10-14 07:59:57 +0000 |
|---|---|---|
| committer | Andrey Belevantsev <abel@ispras.ru> | 2010-10-14 07:59:57 +0000 |
| commit | 522bf5f8b39f68f37c6a23d9ea573bb307fb82c6 (patch) | |
| tree | 2de47a8d5084668e3ae0cf4ea9c11b147f68cb80 /gcc/sel-sched-ir.c | |
| parent | 16d5853b90a6e713bdf4d25f9753e84fad21c390 (diff) | |
* sel-sched-ir.c (init_global_and_expr_for_insn): Set CANT_MOVE on RTX_FRAME_RELATED_P
insns and the insn to which NOTE_INSN_EPILOGUE_BEG is attached.
* sched-vis.c (print_value): Allow NULL value.
* gcc.target/ia64/20101005.c: New test.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@165455 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sel-sched-ir.c')
| -rw-r--r-- | gcc/sel-sched-ir.c | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c index f29f7116efc..452d8d43a65 100644 --- a/gcc/sel-sched-ir.c +++ b/gcc/sel-sched-ir.c @@ -2862,18 +2862,38 @@ init_global_and_expr_for_insn (insn_t insn) bool force_unique_p; ds_t spec_done_ds; - /* Certain instructions cannot be cloned. */ - if (CANT_MOVE (insn) - || INSN_ASM_P (insn) - || SCHED_GROUP_P (insn) - || prologue_epilogue_contains (insn) - /* Exception handling insns are always unique. */ - || (cfun->can_throw_non_call_exceptions && can_throw_internal (insn)) - /* TRAP_IF though have an INSN code is control_flow_insn_p (). */ - || control_flow_insn_p (insn)) - force_unique_p = true; + /* Certain instructions cannot be cloned, and frame related insns and + the insn adjacent to NOTE_INSN_EPILOGUE_BEG cannot be moved out of + their block. */ + if (prologue_epilogue_contains (insn)) + { + if (RTX_FRAME_RELATED_P (insn)) + CANT_MOVE (insn) = 1; + else + { + rtx note; + for (note = REG_NOTES (insn); note; note = XEXP (note, 1)) + if (REG_NOTE_KIND (note) == REG_SAVE_NOTE + && ((enum insn_note) INTVAL (XEXP (note, 0)) + == NOTE_INSN_EPILOGUE_BEG)) + { + CANT_MOVE (insn) = 1; + break; + } + } + force_unique_p = true; + } else - force_unique_p = false; + if (CANT_MOVE (insn) + || INSN_ASM_P (insn) + || SCHED_GROUP_P (insn) + /* Exception handling insns are always unique. */ + || (cfun->can_throw_non_call_exceptions && can_throw_internal (insn)) + /* TRAP_IF though have an INSN code is control_flow_insn_p (). */ + || control_flow_insn_p (insn)) + force_unique_p = true; + else + force_unique_p = false; if (targetm.sched.get_insn_spec_ds) { |