[Committed] S/390: Fix RTL sharing when generating reg note.

[Andreas Krebbel]

gcc/ChangeLog:

2016-12-02  Andreas Krebbel  <kreb...@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_save_gprs_to_fprs): Fix RTL sharing
        problem.
---
 gcc/ChangeLog          | 5 +++++
 gcc/config/s390/s390.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a0cefa7..03387cf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-02  Andreas Krebbel  <kreb...@linux.vnet.ibm.com>
+
+       * config/s390/s390.c (s390_save_gprs_to_fprs): Fix RTL sharing
+       problem.
+
 2016-12-02  Georg-Johann Lay  <a...@gjlay.de>
 
        * config/avr/avr-arch.h (avr_mcu_t) [n_flash]: Remove field.
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index 767666e..030e10d 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -10666,7 +10666,7 @@ s390_save_gprs_to_fprs (void)
          /* This prevents dwarf2cfi from interpreting the set.  Doing
             so it might emit def_cfa_register infos setting an FPR as
             new CFA.  */
-         add_reg_note (insn, REG_CFA_REGISTER, PATTERN (insn));
+         add_reg_note (insn, REG_CFA_REGISTER, copy_rtx (PATTERN (insn)));
        }
     }
 }
-- 
2.9.1