package/gcc/5.4.0/876-xtensa-Fix-PR-target-78603.patch

   1 From e178289a12a829ec47dc5038d91401f65381e71d Mon Sep 17 00:00:00 2001
   2 From: Max Filippov <jcmvbkbc@gmail.com>
   3 Date: Tue, 29 Nov 2016 13:09:17 -0800
   4 Subject: [PATCH 8/8] xtensa: Fix PR target/78603
   5
   6 2016-11-29  Max Filippov  <jcmvbkbc@gmail.com>
   7 gcc/
   8         * config/xtensa/xtensa.c (hwloop_optimize): Don't emit zero
   9         overhead loop start between a call and its CALL_ARG_LOCATION
  10         note.
  11
  12 Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
  13 ---
  14 Backported from: r242979
  15
  16  gcc/config/xtensa/xtensa.c | 5 ++++-
  17  1 file changed, 4 insertions(+), 1 deletion(-)
  18
  19 diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
  20 index 206ff80..36ab1e3 100644
  21 --- a/gcc/config/xtensa/xtensa.c
  22 +++ b/gcc/config/xtensa/xtensa.c
  23 @@ -4182,7 +4182,10 @@ hwloop_optimize (hwloop_info loop)
  24        entry_after = BB_END (entry_bb);
  25        while (DEBUG_INSN_P (entry_after)
  26               || (NOTE_P (entry_after)
  27 -                 && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK))
  28 +                 && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK
  29 +                /* Make sure we don't split a call and its corresponding
  30 +                   CALL_ARG_LOCATION note.  */
  31 +                 && NOTE_KIND (entry_after) != NOTE_INSN_CALL_ARG_LOCATION))
  32          entry_after = PREV_INSN (entry_after);
  33
  34        emit_insn_after (seq, entry_after);
  35 --
  36 2.1.4
  37