Add test for invoke instructions

Author: ilovepi

clang/test/CodeGenCXX/aggregate-lifetime-invoke.cpp

@@ -0,0 +1,45 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s -O1 -fexceptions -fcxx-exceptions | FileCheck %s
+
+struct Trivial {
+  int x[100];
+};
+
+void func_that_throws(Trivial t);
+
+// CHECK-LABEL: define dso_local void @_Z4testv(){{.*}} personality ptr @__gxx_personality_v0
+void test() {
+  // CHECK: %[[AGG1:.*]] = alloca %struct.Trivial, align
+  // CHECK: %[[AGG2:.*]] = alloca %struct.Trivial, align
+
+  // CHECK: call void @llvm.lifetime.start.p0(ptr nonnull %[[AGG1]])
+  // CHECK: invoke void @_Z16func_that_throws7Trivial(ptr noundef nonnull byval(%struct.Trivial) align 8 %[[AGG1]])
+  // CHECK-NEXT: to label %[[CONT1:.*]] unwind label %[[LPAD1:.*]]
+  
+  // CHECK: [[CONT1]]:
+  // CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull %[[AGG2]])
+  // CHECK: invoke void @_Z16func_that_throws7Trivial(ptr noundef nonnull byval(%struct.Trivial) align 8 %[[AGG2]])
+  // CHECK-NEXT: to label %[[CONT2:.*]] unwind label %[[LPAD2:.*]]
+
+  // CHECK: [[CONT2]]:
+  // CHECK-DAG: call void @llvm.lifetime.end.p0(ptr nonnull %[[AGG2]])
+  // CHECK-DAG: call void @llvm.lifetime.end.p0(ptr nonnull %[[AGG1]])
+  // CHECK: br label %[[TRY_CONT:.*]]
+
+  // CHECK: [[LPAD1]]:
+  // CHECK: landingpad
+  // CHECK: br label %[[EHCLEANUP:.*]]
+
+  // CHECK: [[LPAD2]]:
+  // CHECK: landingpad
+  // CHECK: call void @llvm.lifetime.end.p0(ptr nonnull %[[AGG2]])
+  // CHECK: br label %[[EHCLEANUP]]
+
+  // CHECK: [[EHCLEANUP]]:
+  // CHECK: call void @llvm.lifetime.end.p0(ptr nonnull %[[AGG1]])
+  // CHECK: call ptr @__cxa_begin_catch
+  try {
+    func_that_throws(Trivial{0});
+    func_that_throws(Trivial{0});
+  } catch (...) {
+  }
+}