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

+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

gcc/testsuite/ChangeLog

+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

gcc/testsuite/gcc.dg/pr47684.c

+/* 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;
+    }
+}

gcc/tree-predcom.c

 /* 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