From: jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 5 Jul 2016 16:05:27 +0000 (+0000)
Subject: [LRA] Don't count spilling cost for it offmemok
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=21b32b46f1889435764edb3040f89def7ac4818f;p=thirdparty%2Fgcc.git

[LRA] Don't count spilling cost for it offmemok

	* lra-constraints.c (process_alt_operands): Don't add spilling cost for
	"offmemok".



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@238010 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5e466b7cd7d6..de92a3efb8e1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-05  Jiong Wang  <jiong.wang@arm.com>
+
+	* lra-constraints.c (process_alt_operands): Don't add spilling cost for
+	"offmemok".
+
 2016-07-05  Jan Hubicka  <jh@suse.cz>
 
 	* tree-scalar-evoluiton.c (simple_iv): Use nowrap_type to check if
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index bf08dce2e0a4..e9d3e43eacef 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -2488,7 +2488,9 @@ process_alt_operands (int only_alternative)
 
 		 Code below increases the reject for both pseudo and non-pseudo
 		 spill.  */
-	      if (no_regs_p && !(REG_P (op) && hard_regno[nop] < 0))
+	      if (no_regs_p
+		  && !(MEM_P (op) && offmemok)
+		  && !(REG_P (op) && hard_regno[nop] < 0))
 		{
 		  if (lra_dump_file != NULL)
 		    fprintf