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, 69 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20030717-1.c b/gcc/testsuite/gcc.c-torture/execute/20030717-1.c
new file mode 100644
index 000000000..7e43e44be
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20030717-1.c
@@ -0,0 +1,69 @@
+/* PR target/11087
+   This testcase was miscompiled on ppc64, because basic_induction_var called
+   convert_modes, yet did not expect it to emit any new instructions.
+   Those were emitted at the end of the function and destroyed during life
+   analysis, while the program used uninitialized pseudos created by
+   convert_modes.  */
+
+struct A
+{
+  unsigned short a1;
+  unsigned long a2;
+};
+
+struct B
+{
+  int b1, b2, b3, b4, b5;
+};
+
+struct C
+{
+  struct B c1[1];
+  int c2, c3;
+};
+
+static
+int foo (int x)
+{
+  return  x < 0 ? -x : x;
+}
+
+int bar (struct C *x, struct A *y)
+{
+  int a = x->c3;
+  const int b = y->a1 >> 9;
+  const unsigned long c = y->a2;
+  int d = a;
+  unsigned long e, f;
+
+  f = foo (c - x->c1[d].b4);
+  do
+    {
+      if (d <= 0)
+	d = x->c2;
+      d--;
+
+      e = foo (c-x->c1[d].b4);
+      if (e < f)
+	a = d;
+    }
+  while (d != x->c3);
+  x->c1[a].b4 = c + b;
+  return a;
+}
+
+int
+main ()
+{
+  struct A a;
+  struct C b;
+  int c;
+
+  a.a1 = 512;
+  a.a2 = 4242;
+  __builtin_memset (&b, 0, sizeof (b));
+  b.c1[0].b3 = 424242;
+  b.c2 = 1;
+  c = bar (&b, &a);
+  return 0;
+}