diff options
| author | Andrew Pinski <apinski@marvell.com> | 2020-03-06 08:34:01 -0700 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 2020-03-06 08:35:18 -0700 |
| commit | e6ce69cae5059dfd715edd4e26653c23baf4cb0f (patch) | |
| tree | ec76a8da855de110091e86a81e40108ac182b173 /gcc/haifa-sched.c | |
| parent | 4b62b3960ec405c6ed226a7763e0905c434cb2bb (diff) | |
Avoid putting a REG_NOTE on anything other than an INSN in haifa-sched.c
PR rtl-optimization/93996
* haifa-sched.c (remove_notes): Be more careful when adding
REG_SAVE_NOTE.
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 1d3de7b6a76..80687fb5359 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -4239,6 +4239,15 @@ remove_notes (rtx_insn *head, rtx_insn *tail) if (insn != tail) { remove_insn (insn); + /* If an insn was split just before the EPILOGUE_BEG note and + that split created new basic blocks, we could have a + BASIC_BLOCK note here. Safely advance over it in that case + and assert that we land on a real insn. */ + if (NOTE_P (next) + && NOTE_KIND (next) == NOTE_INSN_BASIC_BLOCK + && next != next_tail) + next = NEXT_INSN (next); + gcc_assert (INSN_P (next)); add_reg_note (next, REG_SAVE_NOTE, GEN_INT (NOTE_INSN_EPILOGUE_BEG)); break; |