re PR target/55673 (Reversed before/after handling in sparc_emit_membar_for_model)

	PR target/55673
	* config/sparc/sparc.c (sparc_emit_membar_for_model): Fix reversed
	handling of before and after cases.
	* config/sparc/sync.md (atomic_store): Fix pasto.

Co-Authored-By: Tomash Brechko <tomash.brechko@gmail.com>

From-SVN: r194531

gcc/ChangeLog

 2012-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+	    Tomash Brechko  <tomash.brechko@gmail.com>
+
+	PR target/55673
+	* config/sparc/sparc.c (sparc_emit_membar_for_model): Fix reversed
+	handling of before and after cases.
+	* config/sparc/sync.md (atomic_store): Fix pasto.
+
+2012-12-16  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR rtl-optimization/55630
 	* expr.c (expand_assignment): Do not call copy_blkmode_to_reg to move

gcc/config/sparc/sparc.c

@@ -11190,26 +11190,26 @@ sparc_emit_membar_for_model (enum memmodel model,
 
   if (before_after & 1)
     {
-      if (model == MEMMODEL_ACQUIRE
-          || model == MEMMODEL_ACQ_REL
-          || model == MEMMODEL_SEQ_CST)
+      if (model == MEMMODEL_RELEASE
+	  || model == MEMMODEL_ACQ_REL
+	  || model == MEMMODEL_SEQ_CST)
 	{
 	  if (load_store & 1)
-	    mm |= LoadLoad | LoadStore;
+	    mm |= LoadLoad | StoreLoad;
 	  if (load_store & 2)
-	    mm |= StoreLoad | StoreStore;
+	    mm |= LoadStore | StoreStore;
 	}
     }
   if (before_after & 2)
     {
-      if (model == MEMMODEL_RELEASE
+      if (model == MEMMODEL_ACQUIRE
 	  || model == MEMMODEL_ACQ_REL
 	  || model == MEMMODEL_SEQ_CST)
 	{
 	  if (load_store & 1)
-	    mm |= LoadLoad | StoreLoad;
+	    mm |= LoadLoad | LoadStore;
 	  if (load_store & 2)
-	    mm |= LoadStore | StoreStore;
+	    mm |= StoreLoad | StoreStore;
 	}
     }
 

gcc/config/sparc/sync.md

@@ -35,8 +35,7 @@
 
 (define_expand "membar"
   [(set (match_dup 1)
-	(unspec:BLK [(match_dup 1)
-		     (match_operand:SI 0 "const_int_operand")]
+	(unspec:BLK [(match_dup 1) (match_operand:SI 0 "const_int_operand")]
 		    UNSPEC_MEMBAR))]
   "TARGET_V8 || TARGET_V9"
 {
@@ -66,7 +65,7 @@
   "stbar"
   [(set_attr "type" "multi")])
 
-;; For V8, LDSTUB has the effect of membar #StoreLoad
+;; 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))]
@@ -123,8 +122,8 @@
   [(set_attr "type" "load,fpload")])
 
 (define_expand "atomic_store<mode>"
-  [(match_operand:I 0 "register_operand" "")
-   (match_operand:I 1 "memory_operand" "")
+  [(match_operand:I 0 "memory_operand" "")
+   (match_operand:I 1 "register_operand" "")
    (match_operand:SI 2 "const_int_operand" "")]
   ""
 {