obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 62 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c b/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
new file mode 100644
index 000000000..80785f01f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
@@ -0,0 +1,62 @@
+/* { dg-do run } */
+/* { dg-options "-fdump-tree-alias" } */
+/* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
+
+extern void abort (void);
+int *glob;
+int dummy;
+
+int * __attribute__((noinline,const))
+foo_const(int *p) { return p; }
+
+int * __attribute__((noinline,pure))
+foo_pure(int *p) { return p + dummy; }
+
+int * __attribute__((noinline))
+foo_normal(int *p) { glob = p; return p; }
+
+void test_const(void)
+{
+  int i;
+  int *p = &i;
+  int *q_const = foo_const(p);
+  *p = 1;
+  *q_const = 2;
+  if (*p != 2)
+    abort ();
+}
+
+void test(void)
+{
+  int i;
+  int *p = &i;
+  int *q_normal = foo_normal(p);
+  *p = 1;
+  *q_normal = 2;
+  if (*p != 2)
+    abort ();
+}
+
+void test_pure(void)
+{
+  int i;
+  int *p = &i;
+  int *q_pure = foo_pure(p);
+  *p = 1;
+  *q_pure = 2;
+  if (*p != 2)
+    abort ();
+}
+
+int main()
+{
+  test_const();
+  test();
+  test_pure();
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump "q_const_., points-to non-local, points-to vars: { i }" "alias" } } */
+/* { dg-final { scan-tree-dump "q_pure_., points-to non-local, points-to escaped, points-to vars: { i }" "alias" } } */
+/* { dg-final { scan-tree-dump "q_normal_., points-to non-local, points-to escaped, points-to vars: { }" "alias" } } */
+/* { dg-final { cleanup-tree-dump "alias" } } */