From: Joern Rennecke <joern.rennecke@embecosm.com>
Date: Tue, 28 May 2013 18:04:41 +0000 (+0000)
Subject: re PR rtl-optimization/57439 (FAIL: gcc.c-torture/execute/920501-6.c execution, ... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b49eefa5747d53788ac33f34fa1d034acd21668e;p=gcc.git

re PR rtl-optimization/57439 (FAIL: gcc.c-torture/execute/920501-6.c execution,  -O1)

        PR rtl-optimization/57439
        * postreload.c (move2add_use_add2_insn): Use gen_lowpart_common.

From-SVN: r199387
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 015ccfb9005..5af380adfb3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-05-28  Joern Rennecke <joern.rennecke@embecosm.com>
+
+	PR rtl-optimization/57439
+	* postreload.c (move2add_use_add2_insn): Use gen_lowpart_common.
+
 2013-05-28  Easwaran Raman  <eraman@google.com>
 
 	PR tree-optimization/57337
diff --git a/gcc/postreload.c b/gcc/postreload.c
index 3d75eaf4fef..558ab8b867e 100644
--- a/gcc/postreload.c
+++ b/gcc/postreload.c
@@ -1794,8 +1794,7 @@ move2add_use_add2_insn (rtx reg, rtx sym, rtx off, rtx insn)
 		  && ((reg_offset[regno] & ~GET_MODE_MASK (narrow_mode))
 		      == (INTVAL (off) & ~GET_MODE_MASK (narrow_mode))))
 		{
-		  rtx narrow_reg = gen_rtx_REG (narrow_mode,
-						REGNO (reg));
+		  rtx narrow_reg = gen_lowpart_common (narrow_mode, reg);
 		  rtx narrow_src = gen_int_mode (INTVAL (off),
 						 narrow_mode);
 		  rtx new_set