| John McCall | c84e4e9 | 2013-06-20 21:37:43 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions -std=c++11 | FileCheck %s |
| 2 | |
| 3 | // rdar://11904428 |
| 4 | // Ensure that we call __cxa_begin_catch before calling |
| 5 | // std::terminate in a noexcept function. |
| 6 | namespace test0 { |
| 7 | void foo(); |
| 8 | |
| 9 | struct A { |
| 10 | A(); |
| 11 | ~A(); |
| 12 | }; |
| 13 | |
| 14 | void test() noexcept { |
| 15 | A a; |
| 16 | foo(); |
| 17 | } |
| 18 | } |
| 19 | // CHECK: define void @_ZN5test04testEv() |
| 20 | // CHECK: [[EXN:%.*]] = alloca i8* |
| 21 | // This goes to the terminate lpad. |
| 22 | // CHECK: invoke void @_ZN5test01AC1Ev( |
| 23 | // This goes to the cleanup-and-then-terminate lpad. |
| 24 | // CHECK: invoke void @_ZN5test03fooEv() |
| 25 | // Destructors don't throw by default in C++11. |
| 26 | // CHECK: call void @_ZN5test01AD1Ev( |
| 27 | // Cleanup lpad. |
| 28 | // CHECK: [[T0:%.*]] = landingpad |
| 29 | // CHECK-NEXT: catch i8* null |
| 30 | // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
| 31 | // CHECK-NEXT: store i8* [[T1]], i8** [[EXN]] |
| 32 | // (Calling this destructor is not technically required.) |
| 33 | // CHECK: call void @_ZN5test01AD1Ev( |
| 34 | // CHECK-NEXT: br label |
| 35 | // The terminate landing pad jumps in here for some reason. |
| 36 | // CHECK: [[T0:%.*]] = landingpad |
| 37 | // CHECK-NEXT: catch i8* null |
| 38 | // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
| 39 | // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T1]]) |
| 40 | // CHECK-NEXT: unreachable |
| 41 | // The terminate handler chained to by the cleanup lpad. |
| 42 | // CHECK: [[T0:%.*]] = load i8** [[EXN]] |
| 43 | // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T0]]) |
| 44 | // CHECK-NEXT: unreachable |
| 45 | |
| 46 | // CHECK: define linkonce_odr hidden void @__clang_call_terminate( |
| 47 | // CHECK: call i8* @__cxa_begin_catch( |
| 48 | // CHECK-NEXT: call void @_ZSt9terminatev() |
| 49 | // CHECK-NEXT: unreachable |