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
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1 files changed, 61 insertions, 0 deletions

diff --git a/libgomp/testsuite/libgomp.c/pr43893.c b/libgomp/testsuite/libgomp.c/pr43893.c
new file mode 100644
index 000000000..b85e9242b
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/pr43893.c
@@ -0,0 +1,61 @@
+/* PR c/43893 */
+/* { dg-do run } */
+
+extern void abort (void);
+
+int
+main ()
+{
+  int c;
+  unsigned int i;
+  int j;
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 0; i < 1; i++)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 0; i <= 0; i++)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = - __INT_MAX__ - 1; j < - __INT_MAX__; j++)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = - __INT_MAX__ - 1; j <= - __INT_MAX__ - 1; j++)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 2U * __INT_MAX__ + 1; i > 2U * __INT_MAX__; i--)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 2U * __INT_MAX__ + 1; i >= 2U * __INT_MAX__ + 1; i--)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = __INT_MAX__; j > __INT_MAX__ - 1; j--)
+    c++;
+  if (c != 1)
+    abort ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = __INT_MAX__; j >= __INT_MAX__; j--)
+    c++;
+  if (c != 1)
+    abort ();
+  return 0;
+}