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-rw-r--r--gcc/df-scan.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/df-scan.c b/gcc/df-scan.c
index deaa9f96d53..39f444f9fc5 100644
--- a/gcc/df-scan.c
+++ b/gcc/df-scan.c
@@ -1,6 +1,6 @@
/* Scanning of rtl for dataflow analysis.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
Originally contributed by Michael P. Hayes
(m.hayes@elec.canterbury.ac.nz, mhayes@redhat.com)
Major rewrite contributed by Danny Berlin (dberlin@dberlin.org)
@@ -2794,8 +2794,9 @@ df_ref_create_structure (enum df_ref_class cl,
DF_REF_FLAGS_CLEAR (this_ref, DF_HARD_REG_LIVE);
/* See if this ref needs to have DF_HARD_REG_LIVE bit set. */
- if ((regno < FIRST_PSEUDO_REGISTER)
- && (!DF_REF_IS_ARTIFICIAL (this_ref)))
+ if (regno < FIRST_PSEUDO_REGISTER
+ && !DF_REF_IS_ARTIFICIAL (this_ref)
+ && !DEBUG_INSN_P (DF_REF_INSN (this_ref)))
{
if (DF_REF_REG_DEF_P (this_ref))
{