1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/switch-dce.c b/test/CodeGen/switch-dce.c
new file mode 100644
index 0000000000..f06a3ed98c
--- /dev/null
+++ b/test/CodeGen/switch-dce.c
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -triple i386-unknown-unknown -O0 %s -emit-llvm -o - | FileCheck %s
+
+// CHECK: @test1
+// CHECK-NOT: switch
+// CHECK: add nsw i32 {{.*}}, 1
+// CHECK-NOT: switch
+// CHECK-NOT: add nsw i32
+// CHECK: ret void
+void test1() {
+  int i;
+  switch (1)
+    case 1:
+      ++i;
+
+  switch (0)
+    case 1:
+      i+=2;
+}