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-rw-r--r--test/CodeGen/switch-dce.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/switch-dce.c b/test/CodeGen/switch-dce.c
index a03c4001d3..07a5eba236 100644
--- a/test/CodeGen/switch-dce.c
+++ b/test/CodeGen/switch-dce.c
@@ -216,3 +216,18 @@ void test12() {
}
}
+
+// rdar://9289524 - Check that the empty cases don't produce an empty block.
+// CHECK: @test13
+// CHECK: switch
+// CHECK: i32 42, label %sw.epilog
+// CHECK: i32 11, label %sw.epilog
+// CHECK: sw.epilog:
+// CHECK: ret void
+void test13(int x) {
+ switch (x) {
+ case 42: break; // No empty block please.
+ case 11: break; // No empty block please.
+ default: test13(42); break;
+ }
+}