https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80233
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-03-29
CC| |jakub at gcc dot gnu.org,
| |segher at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This fixes it for me:
--- combine.c.jj1 2017-03-21 15:49:11.000000000 +0100
+++ combine.c 2017-03-29 07:59:56.627951253 +0200
@@ -1254,6 +1254,7 @@ combine_instructions (rtx_insn *f, unsig
last_combined_insn = PREV_INSN (last_combined_insn);
if (last_combined_insn == NULL_RTX
|| BARRIER_P (last_combined_insn)
+ || NOTE_P (last_combined_insn)
|| BLOCK_FOR_INSN (last_combined_insn) != this_basic_block
|| DF_INSN_LUID (last_combined_insn) <= DF_INSN_LUID (insn))
last_combined_insn = insn;
but I'll study the combine dumps in more detail.
