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From b18fe564ed233ee0965b3a980edc5dbe069b80ea Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Tue, 29 Nov 2016 13:09:17 -0800
Subject: [PATCH] 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>
---
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 206ff80..36ab1e3 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -4182,7 +4182,10 @@ 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
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