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authorAndrew Pinski <pinskia@gcc.gnu.org>2005-07-18 16:35:15 -0700
committerAndrew Pinski <pinskia@gcc.gnu.org>2005-07-18 16:35:15 -0700
commit00b6cf8be6ce683680e0a278c2d756f61402cd8b (patch)
tree876b7b1c29e16db6bdecb4b6d9e18846c8735d2b
parent7825308e2053d319f1fb2162968bbf84a86acae3 (diff)
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alias-2.c: New test.
2005-07-18 Andrew Pinski <pinskia@physics.uc.edu> * gcc.dg/tree-ssa/alias-2.c: New test. From-SVN: r102143
-rw-r--r--gcc/testsuite/ChangeLog9
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/alias-2.c27
2 files changed, 34 insertions, 2 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8822852..b367759 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,11 +1,16 @@
+2005-07-18 Andrew Pinski <pinskia@physics.uc.edu>
+
+ * gcc.dg/tree-ssa/alias-2.c: New test.
+
2005-07-18 Mark Mitchell <mark@codesourcery.com>
PR c++/22263
* g++.dg/template/explicit7.C: New test.
2005-07-17 Jerry DeLisle <jvdelisle@verizon.net>
- * gfortran.fortran-torture/execute/nan_inf_fmt.f90: Change case of field
- width of 8 to +Inf and -Inf.
+
+ * gfortran.fortran-torture/execute/nan_inf_fmt.f90: Change case of field
+ width of 8 to +Inf and -Inf.
2005-07-17 Mark Mitchell <mark@codesourcery.com>
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-2.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-2.c
new file mode 100644
index 0000000..fde5c39
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-2.c
@@ -0,0 +1,27 @@
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+static int a;
+int f;
+void bar (void) __attribute__((noinline));
+void bar (void)
+{
+ f = 9;
+}
+
+void link_error ();
+
+int foo()
+{
+ int b, c;
+ a = 5;
+ b = a;
+ bar ();
+ b = b + a;
+ if (b != 10)
+ link_error ();
+ return b;
+}
+
+/* We should have removed the link_error on the tree level as GCC can tell that
+ a is not touched by the calling bar at all. */
+/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */