Vendor import of clang trunk r135360:

http://llvm.org/svn/llvm-project/cfe/trunk@135360

1 files changed, 26 insertions, 0 deletions

diff --git a/test/CodeGen/builtin-expect.c b/test/CodeGen/builtin-expect.c
index 88479d9..664c6b6 100644
--- a/test/CodeGen/builtin-expect.c
+++ b/test/CodeGen/builtin-expect.c
@@ -19,3 +19,29 @@ int main() {
 
 // CHECK: call void @isigprocmask()
 // CHECK: [[C:%.*]] = call i64 (...)* @bar()
+
+
+// CHECK: @test1
+int test1(int x) {
+// CHECK: @llvm.expect
+  if (__builtin_expect (x, 1))
+    return 0;
+  return x;
+}
+
+// CHECK: @test2
+int test2(int x) {
+// CHECK: @llvm.expect
+  switch(__builtin_expect(x, 5)) {
+  default:
+    return 0;
+  case 0:
+  case 1:
+  case 2:
+    return 1;
+  case 5:
+    return 5;
+  };
+
+  return 0;
+}