re PR c/43893 (Error: Invalid controlling predicate with -fopenmp)

	PR c/43893
	* c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.

	* testsuite/libgomp.c/pr43893.c: New test.
	* testsuite/libgomp.c++/pr43893.C: New test.

From-SVN: r158745

3 files changed, 192 insertions, 0 deletions

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 2b267e4..351672a 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,9 @@
+2010-04-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/43893
+	* testsuite/libgomp.c/pr43893.c: New test.
+	* testsuite/libgomp.c++/pr43893.C: New test.
+
 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/43570
diff --git a/libgomp/testsuite/libgomp.c++/pr43893.C b/libgomp/testsuite/libgomp.c++/pr43893.C
new file mode 100644
index 0000000..be0b6f4
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c++/pr43893.C
@@ -0,0 +1,125 @@
+// PR c/43893
+// { dg-do run }
+
+extern "C" void abort ();
+
+template <typename T, T M, T N>
+void
+f1 ()
+{
+  int c;
+  T i;
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = M; i < N; i++)
+    c++;
+  if (c != 1)
+    abort ();
+}
+
+template <typename T, T M, T N>
+void
+f2 ()
+{
+  int c;
+  T i;
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = M; i <= N; i++)
+    c++;
+  if (c != 1)
+    abort ();
+}
+
+template <typename T, T M, T N>
+void
+f3 ()
+{
+  int c;
+  T i;
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = M; i > N; i--)
+    c++;
+  if (c != 1)
+    abort ();
+}
+
+template <typename T, T M, T N>
+void
+f4 ()
+{
+  int c;
+  T i;
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = M; i >= N; i--)
+    c++;
+  if (c != 1)
+    abort ();
+}
+
+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 ();
+  f1 <unsigned int, 0, 1> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 0; i <= 0; i++)
+    c++;
+  if (c != 1)
+    abort ();
+  f2 <unsigned int, 0, 0> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = - __INT_MAX__ - 1; j < - __INT_MAX__; j++)
+    c++;
+  if (c != 1)
+    abort ();
+  f1 <int, (- __INT_MAX__ - 1), (- __INT_MAX__)> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = - __INT_MAX__ - 1; j <= - __INT_MAX__ - 1; j++)
+    c++;
+  if (c != 1)
+    abort ();
+  f2 <int, (- __INT_MAX__ - 1), (- __INT_MAX__ - 1)> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (i = 2U * __INT_MAX__ + 1; i > 2U * __INT_MAX__; i--)
+    c++;
+  if (c != 1)
+    abort ();
+  f3 <unsigned int, (2U * __INT_MAX__ + 1), (2U * __INT_MAX__)> ();
+  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 ();
+  f4 <unsigned int, (2U * __INT_MAX__ + 1), (2U * __INT_MAX__ + 1)> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = __INT_MAX__; j > __INT_MAX__ - 1; j--)
+    c++;
+  if (c != 1)
+    abort ();
+  f3 <int, __INT_MAX__, (__INT_MAX__ - 1)> ();
+  c = 0;
+#pragma omp parallel for reduction(+:c)
+  for (j = __INT_MAX__; j >= __INT_MAX__; j--)
+    c++;
+  if (c != 1)
+    abort ();
+  f4 <int, __INT_MAX__, __INT_MAX__> ();
+  return 0;
+}
diff --git a/libgomp/testsuite/libgomp.c/pr43893.c b/libgomp/testsuite/libgomp.c/pr43893.c
new file mode 100644
index 0000000..b85e924
--- /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;
+}