[PATCH 5/9] [nvptx] Don't emit barriers for empty loops -- test-cases

[Tom de Vries]

Add test-cases for PR85381.

2018-12-17  Tom de Vries  <tdevr...@suse.de>

        PR target/85381
        * testsuite/libgomp.oacc-c-c++-common/pr85381-5.c: New test.
        * testsuite/libgomp.oacc-c-c++-common/pr85381.c: New test.
---
 .../libgomp.oacc-c-c++-common/pr85381-5.c          | 24 ++++++++++++++++++++++
 .../testsuite/libgomp.oacc-c-c++-common/pr85381.c  | 18 ++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381-5.c
 create mode 100644 libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381.c

diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381-5.c 
b/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381-5.c
new file mode 100644
index 00000000000..61e7e48f0c9
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381-5.c
@@ -0,0 +1,24 @@
+/* { dg-additional-options "-save-temps" } */
+/* { dg-do run { target openacc_nvidia_accel_selected } }
+   { dg-skip-if "" { *-*-* } { "*" } { "-O2" } } */
+
+#define n 1024
+
+int
+main (void)
+{
+  #pragma acc parallel vector_length(128)
+  {
+    #pragma acc loop vector
+    for (int i = 0; i < n; i++)
+      ;
+
+    #pragma acc loop vector
+    for (int i = 0; i < n; i++)
+      ;
+  }
+
+  return 0;
+}
+
+/* { dg-final { scan-assembler-not "bar.sync" } } */
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381.c 
b/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381.c
new file mode 100644
index 00000000000..2864dfcf3cb
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381.c
@@ -0,0 +1,18 @@
+/* { dg-additional-options "-save-temps" } */
+/* { dg-do run { target openacc_nvidia_accel_selected } }
+   { dg-skip-if "" { *-*-* } { "*" } { "-O2" } } */
+
+int
+main (void)
+{
+  int v1;
+
+  #pragma acc parallel vector_length (128)
+  #pragma acc loop vector
+  for (v1 = 0; v1 < 20; v1 += 2)
+    ;
+
+  return 0;
+}
+
+/* { dg-final { scan-assembler-not "bar.sync" } } */
-- 
2.16.4