| // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions -std=c++11 | FileCheck %s |
| |
| // rdar://11904428 |
| // Ensure that we call __cxa_begin_catch before calling |
| // std::terminate in a noexcept function. |
| namespace test0 { |
| void foo(); |
| |
| struct A { |
| A(); |
| ~A(); |
| }; |
| |
| void test() noexcept { |
| A a; |
| foo(); |
| } |
| } |
| // CHECK-LABEL: define void @_ZN5test04testEv() |
| // CHECK: [[EXN:%.*]] = alloca i8* |
| // This goes to the terminate lpad. |
| // CHECK: invoke void @_ZN5test01AC1Ev( |
| // This goes to the cleanup-and-then-terminate lpad. |
| // CHECK: invoke void @_ZN5test03fooEv() |
| // Destructors don't throw by default in C++11. |
| // CHECK: call void @_ZN5test01AD1Ev( |
| // Cleanup lpad. |
| // CHECK: [[T0:%.*]] = landingpad |
| // CHECK-NEXT: catch i8* null |
| // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
| // CHECK-NEXT: store i8* [[T1]], i8** [[EXN]] |
| // (Calling this destructor is not technically required.) |
| // CHECK: call void @_ZN5test01AD1Ev( |
| // CHECK-NEXT: br label |
| // The terminate landing pad jumps in here for some reason. |
| // CHECK: [[T0:%.*]] = landingpad |
| // CHECK-NEXT: catch i8* null |
| // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
| // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T1]]) |
| // CHECK-NEXT: unreachable |
| // The terminate handler chained to by the cleanup lpad. |
| // CHECK: [[T0:%.*]] = load i8*, i8** [[EXN]] |
| // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T0]]) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK-LABEL: define linkonce_odr hidden void @__clang_call_terminate( |
| // CHECK: call i8* @__cxa_begin_catch( |
| // CHECK-NEXT: call void @_ZSt9terminatev() |
| // CHECK-NEXT: unreachable |
