re PR other/51165 (gcc.dg/tm/memopt-3.c failure)

        PR other/51165
        * trans-mem.c (requires_barrier): Call may_be_aliased.
testsuite/
        PR other/51165
        * gcc.dg/tm/memopt-3.c: Remove xfail.
        * gcc.dg/tm/memopt-4.c: Remove xfail.
        * gcc.dg/tm/memopt-5.c: Remove xfail.
        * gcc.dg/tm/memopt-7.c: Remove xfail.

From-SVN: r183242

gcc/ChangeLog

+2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR other/51165
+	* trans-mem.c (requires_barrier): Call may_be_aliased.
+
 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/51877

gcc/testsuite/ChangeLog

+2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR other/51165
+	* gcc.dg/tm/memopt-3.c: Remove xfail.
+	* gcc.dg/tm/memopt-4.c: Remove xfail.
+	* gcc.dg/tm/memopt-5.c: Remove xfail.
+	* gcc.dg/tm/memopt-7.c: Remove xfail.
+
 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/51877

gcc/testsuite/gcc.dg/tm/memopt-3.c

@@ -16,5 +16,5 @@ int f()
   return lala.x[0];
 }
 
-/* { dg-final { scan-tree-dump-times "logging: lala.x\\\[i_1\\\]" 1 "tmmark" { xfail *-*-* }  } } */
+/* { dg-final { scan-tree-dump-times "logging: lala.x\\\[i_1\\\]" 1 "tmmark" } } */
 /* { dg-final { cleanup-tree-dump "tmmark" } } */

gcc/testsuite/gcc.dg/tm/memopt-4.c

@@ -19,6 +19,6 @@ int f()
   return lala.x[i];
 }
 
-/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala.x\\\[55\\\]" 1 "tmedge" { xfail *-*-* } } } */
-/* { dg-final { scan-tree-dump-times "lala.x\\\[55\\\] = tm_save" 1 "tmedge" { xfail *-*-* } } } */
+/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala.x\\\[55\\\]" 1 "tmedge" } } */
+/* { dg-final { scan-tree-dump-times "lala.x\\\[55\\\] = tm_save" 1 "tmedge" } } */
 /* { dg-final { cleanup-tree-dump "tmedge" } } */

gcc/testsuite/gcc.dg/tm/memopt-5.c

@@ -19,5 +19,5 @@ int f()
   return lala.x[i];
 }
 
-/* { dg-final { scan-tree-dump-times "ITM_LU\[0-9\] \\\(&lala.x\\\[55\\\]" 1 "tmedge" { xfail *-*-* } } } */
+/* { dg-final { scan-tree-dump-times "ITM_LU\[0-9\] \\\(&lala.x\\\[55\\\]" 1 "tmedge" } } */
 /* { dg-final { cleanup-tree-dump "tmedge" } } */

gcc/testsuite/gcc.dg/tm/memopt-7.c

@@ -17,6 +17,6 @@ int f()
   return lala.x[asdf];
 }
 
-/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala" 1 "tmedge" { xfail *-*-* } } } */
-/* { dg-final { scan-tree-dump-times "lala = tm_save" 1 "tmedge" { xfail *-*-* } } } */
+/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala" 1 "tmedge" } } */
+/* { dg-final { scan-tree-dump-times "lala = tm_save" 1 "tmedge" } } */
 /* { dg-final { cleanup-tree-dump "tmedge" } } */

gcc/trans-mem.c

@@ -1498,7 +1498,7 @@ requires_barrier (basic_block entry_block, tree x, gimple stmt)
 	     lower_sequence_tm altogether.  */
 	  needs_to_live_in_memory (x)
 	  /* X escapes.  */
-	  || ptr_deref_may_alias_global_p (x))
+	  || is_global_var (x))
 	return true;
       else
 	{