From 72e4821846ba8167ec54d24db555d24118e10191 Mon Sep 17 00:00:00 2001
From: Adam Nemet <anemet@caviumnetworks.com>
Date: Mon, 8 Jun 2009 18:49:17 +0000
Subject: [PATCH] jump.c (returnjump_p): Handle delayed branches.
* jump.c (returnjump_p): Handle delayed branches. Add missing
function comment.
From-SVN: r148289
---
gcc/ChangeLog | 5 +++++
gcc/jump.c | 7 +++++++
2 files changed, 12 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f6bf148c76e2..594c0a6e84f5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-08 Adam Nemet <anemet@caviumnetworks.com>
+
+ * jump.c (returnjump_p): Handle delayed branches. Add missing
+ function comment.
+
2009-06-08 Jan Hubicka <jh@suse.cz>
PR middle-end/40102
diff --git a/gcc/jump.c b/gcc/jump.c
index c3af16a06a7e..350de16f07c5 100644
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -886,11 +886,18 @@ returnjump_p_1 (rtx *loc, void *data ATTRIBUTE_UNUSED)
}
}
+/* Return TRUE if INSN is a return jump. */
+
int
returnjump_p (rtx insn)
{
+ /* Handle delayed branches. */
+ if (NONJUMP_INSN_P (insn) && GET_CODE (PATTERN (insn)) == SEQUENCE)
+ insn = XVECEXP (PATTERN (insn), 0, 0);
+
if (!JUMP_P (insn))
return 0;
+
return for_each_rtx (&PATTERN (insn), returnjump_p_1, NULL);
}
--
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