tilegx.c (tilegx_expand_builtin): Set PREFETCH_SCHEDULE_BARRIER_P to true for prefetches.

2014-01-25  Walter Lee  <walt@tilera.com>

            * config/tilegx/tilegx.c (tilegx_expand_builtin): Set
            PREFETCH_SCHEDULE_BARRIER_P to true for prefetches.
            * config/tilepro/tilepro.c (tilepro_expand_builtin): Ditto.

From-SVN: r207080

gcc/ChangeLog

+2014-01-25  Walter Lee  <walt@tilera.com>
+
+	* config/tilegx/tilegx.c (tilegx_expand_builtin): Set
+	PREFETCH_SCHEDULE_BARRIER_P to true for prefetches.
+	* config/tilepro/tilepro.c (tilepro_expand_builtin): Ditto.
+
 2014-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
 	
 	* config/mips/constraints.md (kl): Delete.

gcc/config/tilegx/tilegx.c

@@ -3570,6 +3570,12 @@ tilegx_expand_builtin (tree exp,
     }
   if (!pat)
     return NULL_RTX;
+
+  /* If we are generating a prefetch, tell the scheduler not to move
+     it around.  */
+  if (GET_CODE (pat) == PREFETCH)
+    PREFETCH_SCHEDULE_BARRIER_P (pat) = true;
+
   emit_insn (pat);
 
   if (nonvoid)

gcc/config/tilepro/tilepro.c

@@ -3184,6 +3184,12 @@ tilepro_expand_builtin (tree exp,
     }
   if (!pat)
     return NULL_RTX;
+
+  /* If we are generating a prefetch, tell the scheduler not to move
+     it around.  */
+  if (GET_CODE (pat) == PREFETCH)
+    PREFETCH_SCHEDULE_BARRIER_P (pat) = true;
+
   emit_insn (pat);
 
   if (nonvoid)