* cprop.c (local_cprop_pass): Don't set changed for debug insns.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174700 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c45fe72..a06eb75 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2011-06-06  Alexandre Oliva  <aoliva@redhat.com>
 
+       * cprop.c (local_cprop_pass): Don't set changed for debug insns.
+
+2011-06-06  Alexandre Oliva  <aoliva@redhat.com>
+
        * dce.c (reset_unmarked_insns_debug_uses): New.
        (delete_unmarked_insns): Skip debug insns.
        (prescan_insns_for_dce): Likewise.

diff --git a/gcc/cprop.c b/gcc/cprop.c
index 24f4a84..b7b17b1 100644 (file)
--- a/gcc/cprop.c
+++ b/gcc/cprop.c
@@ -1223,7 +1223,8 @@ local_cprop_pass (void)
                    {
                      if (do_local_cprop (reg_use_table[i], insn))
                        {
-                         changed = true;
+                         if (!DEBUG_INSN_P (insn))
+                           changed = true;
                          break;
                        }
                    }