From cc9568bae32642d24b9f2c94eb1d9ecb64a0b064 Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernds@codesourcery.com>
Date: Thu, 1 Jul 2010 09:20:40 +0000
Subject: [PATCH] re PR bootstrap/44727 (Failed to bootstrap with
--with-cpu=atom)
PR target/44727
* config/i386/i386.md (peephole2 for arithmetic ops with memory):
Make sure operand 0 dies.
From-SVN: r161656
---
gcc/ChangeLog | 6 ++++++
gcc/config/i386/i386.md | 2 ++
2 files changed, 8 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d36c585e2778..f09065965e9a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-07-01 Bernd Schmidt <bernds@codesourcery.com>
+
+ PR target/44727
+ * config/i386/i386.md (peephole2 for arithmetic ops with memory):
+ Make sure operand 0 dies.
+
2010-07-01 Richard Guenther <rguenther@suse.de>
PR middle-end/42834
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index e361fd707ab7..1714d50df9f4 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -17575,6 +17575,8 @@
|| GET_MODE (operands[0]) == HImode))
|| GET_MODE (operands[0]) == SImode
|| (TARGET_64BIT && GET_MODE (operands[0]) == DImode))
+ && (rtx_equal_p (operands[0], operands[3])
+ || peep2_reg_dead_p (2, operands[0]))
/* We reorder load and the shift. */
&& !reg_overlap_mentioned_p (operands[0], operands[4])"
[(set (match_dup 5) (match_dup 4))
--
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