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, 59 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr24716.c b/gcc/testsuite/gcc.c-torture/execute/pr24716.c
new file mode 100644
index 000000000..c2473f84c
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr24716.c
@@ -0,0 +1,59 @@
+/* PR24716, scalar evolution returning the wrong result
+   for pdest.  */
+
+int Link[] = { -1 };
+int W[] = { 2 };
+
+extern void abort (void);
+
+int f (int k, int p)
+{
+  int pdest, j, D1361;
+  j = 0;
+  pdest = 0;
+  for (;;) {
+    if (pdest > 2)
+      do
+        j--, pdest++;
+      while (j > 2);
+
+    if (j == 1)
+      break;
+
+    while (pdest > p)
+      if (j == p)
+        pdest++;
+
+    do
+      {
+        D1361 = W[k];
+        do
+          if (D1361 != 0)
+            pdest = 1, W[k] = D1361 = 0;
+        while (p < 1);
+    } while (k > 0);
+
+    do
+      {
+        p = 0;
+        k = Link[k];
+        while (p < j)
+          if (k != -1)
+            pdest++, p++;
+      }
+    while (k != -1);
+    j = 1;
+  }
+
+  /* The correct return value should be pdest (1 in the call from main).
+     DOM3 is mistaken and propagates a 0 here.  */
+  return pdest;
+}
+
+int main ()
+{
+  if (!f (0, 2))
+    abort ();
+  return 0;
+}
+