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, 41 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr42691.c b/gcc/testsuite/gcc.c-torture/execute/pr42691.c
new file mode 100644
index 000000000..7eeee99ec
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr42691.c
@@ -0,0 +1,41 @@
+extern void abort (void);
+
+union _D_rep
+{
+  unsigned short rep[4];
+  double val;
+};
+
+int add(double* key, double* table)
+{
+  unsigned i = 0;
+  double* deletedEntry = 0;
+  while (1) {
+    double* entry = table + i;
+
+    if (*entry == *key)
+      break;
+
+    union _D_rep _D_inf = {{ 0, 0, 0, 0x7ff0 }};
+    if (*entry != _D_inf.val)
+      abort ();
+
+    union _D_rep _D_inf2 = {{ 0, 0, 0, 0x7ff0 }};
+    if (!_D_inf2.val)
+      deletedEntry = entry;
+
+    i++;
+  }
+  if (deletedEntry)
+    *deletedEntry = 0.0;
+  return 0;
+}
+
+int main ()
+{
+  union _D_rep infinit = {{ 0, 0, 0, 0x7ff0 }};
+  double table[2] = { infinit.val, 23 };
+  double key = 23;
+  int ret = add (&key, table);
+  return ret;
+}