From: Daniel Cederman <cederman@gaisler.com>
Date: Sat, 19 Jul 2014 10:42:30 +0000 (+0000)
Subject: sync.md (*membar_storeload_leon3): New insn.
X-Git-Tag: releases/gcc-4.8.4~352
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fd2037592ab6713632e3b41feb211d895a93706;p=thirdparty%2Fgcc.git

sync.md (*membar_storeload_leon3): New insn.

	* config/sparc/sync.md (*membar_storeload_leon3): New insn.
	(*membar_storeload): Disable for LEON3.

From-SVN: r212843
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 59addffc3c95..66c615975b73 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-07-19  Daniel Cederman  <cederman@gaisler.com>
+
+	* config/sparc/sync.md (*membar_storeload_leon3): New insn.
+	(*membar_storeload): Disable for LEON3.
+
 2014-07-17  Richard Biener  <rguenther@suse.de>
 
 	PR rtl-optimization/61801
diff --git a/gcc/config/sparc/sync.md b/gcc/config/sparc/sync.md
index cf909853b373..7e39b983d6a3 100644
--- a/gcc/config/sparc/sync.md
+++ b/gcc/config/sparc/sync.md
@@ -64,11 +64,19 @@
   "stbar"
   [(set_attr "type" "multi")])
 
+;; For LEON3, STB has the effect of membar #StoreLoad.
+(define_insn "*membar_storeload_leon3"
+  [(set (match_operand:BLK 0 "" "")
+	(unspec:BLK [(match_dup 0) (const_int 2)] UNSPEC_MEMBAR))]
+  "TARGET_LEON3"
+  "stb\t%%g0, [%%sp-1]"
+  [(set_attr "type" "store")])
+
 ;; For V8, LDSTUB has the effect of membar #StoreLoad.
 (define_insn "*membar_storeload"
   [(set (match_operand:BLK 0 "" "")
 	(unspec:BLK [(match_dup 0) (const_int 2)] UNSPEC_MEMBAR))]
-  "TARGET_V8"
+  "TARGET_V8 && !TARGET_LEON3"
   "ldstub\t[%%sp-1], %%g0"
   [(set_attr "type" "multi")])