From b63f974ef230d8b6fa8258ca6cd6a5be684e0a8c Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 11 Feb 2011 15:19:44 +0100
Subject: [PATCH] re PR target/47665 (ICE in trunc_int_for_mode)
PR target/47665
* combine.c (make_compound_operation): Only change shifts into
multiplication for SCALAR_INT_MODE_P.
* gcc.target/i386/pr47665.c: New test.
From-SVN: r170050
---
gcc/ChangeLog | 6 ++++++
gcc/testsuite/ChangeLog | 5 +++++
gcc/testsuite/gcc.dg/pr47684.c | 20 ++++++++++++++++++++
gcc/tree-predcom.c | 4 +++-
4 files changed, 34 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.dg/pr47684.c
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9e8c392b3400..e4ca2b6803ce 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-02-11 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/47665
+ * combine.c (make_compound_operation): Only change shifts into
+ multiplication for SCALAR_INT_MODE_P.
+
2011-02-11 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR testsuite/47400
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c5bf3eb787d9..10e3be701c91 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-11 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/47665
+ * gcc.target/i386/pr47665.c: New test.
+
2011-02-11 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR target/47629
diff --git a/gcc/testsuite/gcc.dg/pr47684.c b/gcc/testsuite/gcc.dg/pr47684.c
new file mode 100644
index 000000000000..475aa1549b81
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47684.c
@@ -0,0 +1,20 @@
+/* PR debug/47684 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -fcompare-debug" } */
+
+int in[8][4];
+int out[4];
+
+void
+foo (void)
+{
+ int sum = 1;
+ int i, j, k;
+ for (k = 0; k < 4; k++)
+ {
+ for (j = 0; j < 4; j++)
+ for (i = 0; i < 4; i++)
+ sum *= in[i + k][j];
+ out[k] = sum;
+ }
+}
diff --git a/gcc/tree-predcom.c b/gcc/tree-predcom.c
index f744d4487809..2dbd07d135af 100644
--- a/gcc/tree-predcom.c
+++ b/gcc/tree-predcom.c
@@ -1,5 +1,5 @@
/* Predictive commoning.
- Copyright (C) 2005, 2007, 2008, 2009, 2010
+ Copyright (C) 2005, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
This file is part of GCC.
@@ -1668,6 +1668,8 @@ single_nonlooparound_use (tree name)
return NULL;
}
+ else if (is_gimple_debug (stmt))
+ continue;
else if (ret != NULL)
return NULL;
else
--
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