From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 30 Nov 2016 13:01:34 +0000 (+0100)
Subject: ira.c (ira_update_equiv_info_by_shuffle_insn): Use copy_rtx for REG_EQUIV argument.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2c7973212032bb1d4240a305b9ffb99469f67e89;p=gcc.git

ira.c (ira_update_equiv_info_by_shuffle_insn): Use copy_rtx for REG_EQUIV argument.

	* ira.c (ira_update_equiv_info_by_shuffle_insn): Use copy_rtx
	for REG_EQUIV argument.

From-SVN: r243017
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b4c4e307b4..5b91b860c54 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-11-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* ira.c (ira_update_equiv_info_by_shuffle_insn): Use copy_rtx
+	for REG_EQUIV argument.
+
 2016-11-30  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 
 	* config/arm/t-rmprofile: Add mappings for Cortex-M23 and Cortex-M33.
diff --git a/gcc/ira.c b/gcc/ira.c
index d20ec99fae5..358110b6a31 100644
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -2647,7 +2647,7 @@ ira_update_equiv_info_by_shuffle_insn (int to_regno, int from_regno, rtx_insn *i
 	}
       if (find_reg_note (insn, REG_EQUIV, x) == NULL_RTX)
 	{
-	  note = set_unique_reg_note (insn, REG_EQUIV, x);
+	  note = set_unique_reg_note (insn, REG_EQUIV, copy_rtx (x));
 	  gcc_assert (note != NULL_RTX);
 	  if (internal_flag_ira_verbose > 3 && ira_dump_file != NULL)
 	    {