1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr37879.c b/gcc/testsuite/gcc.dg/pr37879.c
new file mode 100644
index 000000000..5dd252782
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr37879.c
@@ -0,0 +1,28 @@
+/* PR tree-optimization/37879 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+static inline void bar (int) __attribute__ ((noreturn));
+void baz () __attribute__ ((noreturn));
+
+inline int
+foo (int i)
+{
+  return i;
+}
+
+int i = 23;
+static inline void
+bar (int j)
+{
+  if (j)
+    asm ("");
+}		/* { dg-warning "does return" } */
+
+void
+baz ()
+{
+  int j;
+  bar (foo (j = i++));
+  asm ("");
+}