From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 30 Nov 2016 13:02:07 +0000 (+0100)
Subject: i386.c (dimode_scalar_chain::convert_op): Avoid sharing the SUBREG rtx between move... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7bbc950b362cb825a54bb9da3dc06b29a1c68fbe;p=gcc.git

i386.c (dimode_scalar_chain::convert_op): Avoid sharing the SUBREG rtx between move and following insn.

	* config/i386/i386.c (dimode_scalar_chain::convert_op): Avoid
	sharing the SUBREG rtx between move and following insn.

From-SVN: r243018
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b91b860c54..6c853e90b83 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2016-11-30  Jakub Jelinek  <jakub@redhat.com>
 
+	* config/i386/i386.c (dimode_scalar_chain::convert_op): Avoid
+	sharing the SUBREG rtx between move and following insn.
+
 	* ira.c (ira_update_equiv_info_by_shuffle_insn): Use copy_rtx
 	for REG_EQUIV argument.
 
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 5018ccb633a..a5f5339be67 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3723,7 +3723,7 @@ dimode_scalar_chain::convert_op (rtx *op, rtx_insn *insn)
 	  emit_insn_before (seq, insn);
 	}
 
-      emit_insn_before (gen_move_insn (tmp, vec_cst), insn);
+      emit_insn_before (gen_move_insn (copy_rtx (tmp), vec_cst), insn);
       *op = tmp;
     }
   else