From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 16 Nov 2006 13:36:23 +0000 (+0000)
Subject: spe.md (frob_di_df_2): Handle non-offsettable memory operand.
X-Git-Tag: releases/gcc-4.3.0~8434
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=198bc7873d1ec1ead4e8db307e0e4cc1fca81370;p=thirdparty%2Fgcc.git

spe.md (frob_di_df_2): Handle non-offsettable memory operand.

	* config/rs6000/spe.md (frob_di_df_2): Handle non-offsettable
	memory operand.

From-SVN: r118889
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c5ae49aec635..fed1fb5e85a0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-11-16  Joseph Myers  <joseph@codesourcery.com>
+
+	* config/rs6000/spe.md (frob_di_df_2): Handle non-offsettable
+	memory operand.
+
 2006-11-16  Richard Earnshaw  <rearnsha@arm.com>
 
 	* arm.md (abssi2): Allow Thumb as well.	 Use an SImode scratch for
diff --git a/gcc/config/rs6000/spe.md b/gcc/config/rs6000/spe.md
index 1ac1a8492c17..f2410dd29163 100644
--- a/gcc/config/rs6000/spe.md
+++ b/gcc/config/rs6000/spe.md
@@ -2223,6 +2223,11 @@
     case 0:
       return \"evmergehi %0,%1,%1\;mr %L0,%1\";
     case 1:
+      /* If the address is not offsettable we need to load the whole
+	 doubleword into a 64-bit register and then copy the high word
+	 to form the correct output layout.  */
+      if (!offsettable_nonstrict_memref_p (operands[1]))
+	return \"evldd%X1 %L0,%y1\;evmergehi %0,%L0,%L0\";
       /* If the low-address word is used in the address, we must load
 	it last.  Otherwise, load it first.  Note that we cannot have
 	auto-increment in that case since the address register is