From: Eric Botcazou <ebotcazou@adacore.com>
Date: Sat, 3 Dec 2016 17:37:13 +0000 (+0000)
Subject: lra-constraints.c (emit_spill_move): Use gen_lowpart_SUBREG in all cases to build... 
X-Git-Tag: basepoints/gcc-8~2557
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54b84aa9456004ceee2bceb813843525ee11bd7d;p=thirdparty%2Fgcc.git

lra-constraints.c (emit_spill_move): Use gen_lowpart_SUBREG in all cases to build a lowpart SUBREG.

	* lra-constraints.c (emit_spill_move): Use gen_lowpart_SUBREG in all
	cases to build a lowpart SUBREG.

From-SVN: r243222
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 396580a59ba1..496c691afdce 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* lra-constraints.c (emit_spill_move): Use gen_lowpart_SUBREG in all
+	cases to build a lowpart SUBREG.
+
 2016-12-03  Eric Botcazou  <ebotcazou@adacore.com>
             David S. Miller  <davem@davemloft.net>
 
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index 260591acb06b..e661aefe202e 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -1109,9 +1109,9 @@ emit_spill_move (bool to_p, rtx mem_pseudo, rtx val)
 	 dependent macro HARD_REGNO_CALLER_SAVE_MODE.  */
       if (! MEM_P (val))
 	{
-	  val = gen_rtx_SUBREG (GET_MODE (mem_pseudo),
-				GET_CODE (val) == SUBREG ? SUBREG_REG (val) : val,
-				0);
+	  val = gen_lowpart_SUBREG (GET_MODE (mem_pseudo),
+				    GET_CODE (val) == SUBREG
+				    ? SUBREG_REG (val) : val);
 	  LRA_SUBREG_P (val) = 1;
 	}
       else