1 files changed, 55 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/flatten-1.c b/gcc/testsuite/gcc.dg/tree-ssa/flatten-1.c
new file mode 100644
index 000000000..2eb41e5b4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/flatten-1.c
@@ -0,0 +1,55 @@
+/* { dg-do compile } */
+/* { dg-options -O2 } */
+
+/* Basic tests for flatten attribute, check we end up
+   with only the flattened function bodies.  */
+
+static int foobar(int i);
+static int bar(int i);
+
+int __attribute__((flatten)) leaf0a(int i)
+{
+  return bar(i);
+}
+int __attribute__((flatten)) leaf0b(int i)
+{
+  return foobar(i);
+}
+int __attribute__((flatten)) leaf1(int i)
+{
+  return bar(foobar(i));
+}
+int __attribute__((flatten)) leaf2(int i)
+{
+  int j;
+  j = foobar(i);
+  return bar(j);
+}
+
+static int foobar(int i)
+{
+  return i-1;
+}
+static int bar(int i)
+{
+  return i + foobar(i);
+}
+
+
+static int gloobar(int i)
+{
+  return i*5+1;
+}
+static int floobar(int i)
+{
+  return gloobar(i);
+}
+int __attribute__((flatten)) leaf3(int i)
+{
+  int j;
+  j = floobar(i);
+  j += floobar(i);
+  return j;
+}
+
+/* { dg-final { scan-assembler-not "bar\[: \t\n\]" } } */