buildroot

From 59cce7b304a8cbbb508ba21ab2f9052d3ee9a9e3 Mon Sep 17 00:00:00 2001

From: Max Filippov <jcmvbkbc@gmail.com>

Date: Tue, 29 Nov 2016 13:09:17 -0800

Subject: [PATCH 2/2] xtensa: Fix PR target/78603

​

2016-11-29  Max Filippov  <jcmvbkbc@gmail.com>

gcc/

    * config/xtensa/xtensa.c (hwloop_optimize): Don't emit zero

    overhead loop start between a call and its CALL_ARG_LOCATION

    note.

​

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

---

Backported from: r242979

​

 gcc/config/xtensa/xtensa.c | 5 ++++-

 1 file changed, 4 insertions(+), 1 deletion(-)

​

diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c

index e49f784..70f698a 100644

--- a/gcc/config/xtensa/xtensa.c

+++ b/gcc/config/xtensa/xtensa.c

@@ -4158,7 +4158,10 @@ hwloop_optimize (hwloop_info loop)

       entry_after = BB_END (entry_bb);

       while (DEBUG_INSN_P (entry_after)

              || (NOTE_P (entry_after)

-                 && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK))

+                 && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK

+        /* Make sure we don't split a call and its corresponding

+           CALL_ARG_LOCATION note.  */

+                 && NOTE_KIND (entry_after) != NOTE_INSN_CALL_ARG_LOCATION))

         entry_after = PREV_INSN (entry_after);

       emit_insn_after (seq, entry_after);

-- 

2.1.4

​