PR rtl-optimization/50212

	* bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
	Skip also lps with NULL landing_pad or non-LABEL_P landing_pad.

	* g++.dg/other/pr50212.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@178785 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a8bc80a..311cb8d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2011-09-12  Jakub Jelinek  <jakub@redhat.com>
 
+       PR rtl-optimization/50212
+       * bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
+       Skip also lps with NULL landing_pad or non-LABEL_P landing_pad.
+
        PR debug/50299
        * calls.c (load_register_parameters): Use use_reg_mode instead
        of use_reg when adding a single register CALL_INSN_FUNCTION_USAGE

diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c
index 874ece2..3ac7fbd 100644 (file)
--- a/gcc/bb-reorder.c
+++ b/gcc/bb-reorder.c
@@ -1,5 +1,5 @@
 /* Basic block reordering routines for the GNU compiler.
-   Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010
+   Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011
    Free Software Foundation, Inc.
 
    This file is part of GCC.
@@ -1315,7 +1315,9 @@ find_rarely_executed_basic_blocks_and_crossing_edges (void)
        {
          bool all_same, all_diff;
 
-         if (lp == NULL)
+         if (lp == NULL
+             || lp->landing_pad == NULL_RTX
+             || !LABEL_P (lp->landing_pad))
            continue;
 
          all_same = all_diff = true;

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 57c8209..4fa122c 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-09-12  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/50212
+       * g++.dg/other/pr50212.C: New test.
+
 2011-09-12  Georg-Johann Lay  <avr@gjlay.de>
 
        PR target/43746

diff --git a/gcc/testsuite/g++.dg/other/pr50212.C b/gcc/testsuite/g++.dg/other/pr50212.C
new file mode 100644 (file)
index 0000000..c0b030d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/pr50212.C
@@ -0,0 +1,17 @@
+// PR rtl-optimization/50212
+// { dg-do compile }
+// { dg-require-effective-target freorder }
+// { dg-options "-O -fnon-call-exceptions -ftrapv -freorder-blocks-and-partition" }
+
+void
+foo (int n)
+{
+  try
+  {
+    int i = 0;
+    while (i++ < n);
+  }
+  catch (...)
+  {
+  }
+}