Add parloops-exit-first-loop-alt-{5,6,7}.c

2015-06-30  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/parloops-exit-first-loop-alt-5.c: New test.
	* gcc.dg/parloops-exit-first-loop-alt-6.c: New test.
	* gcc.dg/parloops-exit-first-loop-alt-7.c: New test.
	* gcc.dg/parloops-exit-first-loop-alt.c: Update comment.

	* testsuite/libgomp.c/parloops-exit-first-loop-alt-5.c: New test.
	* testsuite/libgomp.c/parloops-exit-first-loop-alt-6.c: New test.
	* testsuite/libgomp.c/parloops-exit-first-loop-alt-7.c: New test.
	* testsuite/libgomp.c/parloops-exit-first-loop-alt.c: Update comment.

From-SVN: r225172

5 files changed, 74 insertions, 1 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b006b4c..8716cd3 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2015-06-30  Tom de Vries  <tom@codesourcery.com>
+
+	* gcc.dg/parloops-exit-first-loop-alt-5.c: New test.
+	* gcc.dg/parloops-exit-first-loop-alt-6.c: New test.
+	* gcc.dg/parloops-exit-first-loop-alt-7.c: New test.
+	* gcc.dg/parloops-exit-first-loop-alt.c: Update comment.
+
 2015-06-30  Marek Polacek  <polacek@redhat.com>
 
 	* gcc.dg/fold-ior-2.c: New test.
diff --git a/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-5.c b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-5.c
new file mode 100644
index 0000000..3f799cf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-5.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target pthread } */
+/* { dg-options "-O2 -ftree-parallelize-loops=2 -fdump-tree-parloops" } */
+
+/* Variable bound, vector addition, unsigned loop counter, unsigned bound.  */
+
+void
+f (unsigned int n, unsigned int *__restrict__ a, unsigned int *__restrict__ b,
+   unsigned int *__restrict__ c)
+{
+  unsigned int i;
+
+  for (i = 0; i < n; ++i)
+    c[i] = a[i] + b[i];
+}
+
+/* Three times a store:
+   - one in f._loopfn.0
+   - one in the parallel
+   - one in the low iteration count loop
+   Crucially, none for a peeled off last iteration following the parallel.  */
+/* { dg-final { scan-tree-dump-times "(?n)^  \\*_\[0-9\]*" 3 "parloops" } } */
diff --git a/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-6.c b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-6.c
new file mode 100644
index 0000000..ee19a55
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-6.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target pthread } */
+/* { dg-options "-O2 -ftree-parallelize-loops=2 -fdump-tree-parloops" } */
+
+/* Variable bound, vector addition, unsigned loop counter, signed bound.  */
+
+void
+f (int n, unsigned int *__restrict__ a, unsigned int *__restrict__ b,
+   unsigned int *__restrict__ c)
+{
+  unsigned int i;
+
+  for (i = 0; i < n; ++i)
+    c[i] = a[i] + b[i];
+}
+
+/* Three times a store:
+   - one in f._loopfn.0
+   - one in the parallel
+   - one in the low iteration count loop
+   Crucially, none for a peeled off last iteration following the parallel.  */
+/* { dg-final { scan-tree-dump-times "(?n)^  \\*_\[0-9\]*" 3 "parloops" } } */
diff --git a/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-7.c b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-7.c
new file mode 100644
index 0000000..c337342
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt-7.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target pthread } */
+/* { dg-options "-O2 -ftree-parallelize-loops=2 -fdump-tree-parloops" } */
+
+/* Variable bound, vector addition, signed loop counter, signed bound.  */
+
+void
+f (int n, unsigned int *__restrict__ a, unsigned int *__restrict__ b,
+   unsigned int *__restrict__ c)
+{
+  int i;
+
+  for (i = 0; i < n; ++i)
+    c[i] = a[i] + b[i];
+}
+
+/* Three times a store:
+   - one in f._loopfn.0
+   - one in the parallel
+   - one in the low iteration count loop
+   Crucially, none for a peeled off last iteration following the parallel.  */
+/* { dg-final { scan-tree-dump-times "(?n)^  \\*_\[0-9\]*" 3 "parloops" } } */
diff --git a/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt.c b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt.c
index e088fa1..0b69165 100644
--- a/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt.c
+++ b/gcc/testsuite/gcc.dg/parloops-exit-first-loop-alt.c
@@ -2,7 +2,7 @@
 /* { dg-require-effective-target pthread } */
 /* { dg-options "-O2 -ftree-parallelize-loops=2 -fdump-tree-parloops" } */
 
-/* Variable bound, vector addition.  */
+/* Variable bound, vector addition, signed loop counter, unsigned bound.  */
 
 void
 f (unsigned int n, unsigned int *__restrict__ a, unsigned int *__restrict__ b,