From: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 29 Oct 2012 16:41:41 +0000 (+0000)
Subject: 	* config/i386/i386.c (ix86_decompose_address): Use simplify_gen_subreg
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e3a04215ff97263194caecf6a97c04bf16305fb9;p=thirdparty%2Fgcc.git

	* config/i386/i386.c (ix86_decompose_address): Use simplify_gen_subreg
	for all addresses, zero-extended with AND.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192950 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cf534c63d68b..b0a83542c71c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-10-29  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386.c (ix86_decompose_address): Use simplify_gen_subreg
+	for all addresses, zero-extended with AND.
+
 2012-10-29  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR middle-end/55116
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 2931e62bed9e..e0994e72ff66 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -11810,23 +11810,11 @@ ix86_decompose_address (rtx addr, struct ix86_address *out)
       else if (GET_CODE (addr) == AND
 	       && const_32bit_mask (XEXP (addr, 1), DImode))
 	{
-	  addr = XEXP (addr, 0);
+	  addr = simplify_gen_subreg (SImode, XEXP (addr, 0), DImode, 0);
+	  if (addr == NULL_RTX)
+	    return 0;
 
-	  /* Adjust SUBREGs.  */
-	  if (GET_CODE (addr) == SUBREG
-	      && GET_MODE (SUBREG_REG (addr)) == SImode)
-	    {
-	      addr = SUBREG_REG (addr);
-	      if (CONST_INT_P (addr))
-		return 0;
-	    }
-	  else if (GET_MODE (addr) == DImode)
-	    {
-	      addr = simplify_gen_subreg (SImode, addr, DImode, 0);
-	      if (addr == NULL_RTX)
-		return 0;
-	    }
-	  else if (GET_MODE (addr) != VOIDmode)
+	  if (CONST_INT_P (addr))
 	    return 0;
 	}
     }