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

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
2c797321 · Jakub Jelinek · Jakub Jelinek · 11bbe995 · 2c797321 · 2c797321
Commit 2c797321 authored Nov 30, 2016 by Jakub Jelinek Committed by Jakub Jelinek Nov 30, 2016
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gcc/ChangeLog
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gcc/ira.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+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.
--- 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)
 	    {