| 1 | // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions -std=c++11 | FileCheck %s |
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| 2 | |
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| 3 | // rdar://11904428 |
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| 4 | // Ensure that we call __cxa_begin_catch before calling |
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| 5 | // std::terminate in a noexcept function. |
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| 6 | namespace test0 { |
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| 7 | void foo(); |
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| 8 | |
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| 9 | struct A { |
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| 10 | A(); |
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| 11 | ~A(); |
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| 12 | }; |
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| 13 | |
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| 14 | void test() noexcept { |
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| 15 | A a; |
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| 16 | foo(); |
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| 17 | } |
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| 18 | } |
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| 19 | // CHECK-LABEL: define void @_ZN5test04testEv() |
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| 20 | // CHECK: [[EXN:%.*]] = alloca i8* |
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| 21 | // This goes to the terminate lpad. |
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| 22 | // CHECK: invoke void @_ZN5test01AC1Ev( |
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| 23 | // This goes to the cleanup-and-then-terminate lpad. |
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| 24 | // CHECK: invoke void @_ZN5test03fooEv() |
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| 25 | // Destructors don't throw by default in C++11. |
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| 26 | // CHECK: call void @_ZN5test01AD1Ev( |
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| 27 | // Cleanup lpad. |
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| 28 | // CHECK: [[T0:%.*]] = landingpad |
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| 29 | // CHECK-NEXT: catch i8* null |
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| 30 | // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
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| 31 | // CHECK-NEXT: store i8* [[T1]], i8** [[EXN]] |
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| 32 | // (Calling this destructor is not technically required.) |
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| 33 | // CHECK: call void @_ZN5test01AD1Ev( |
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| 34 | // CHECK-NEXT: br label |
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| 35 | // The terminate landing pad jumps in here for some reason. |
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| 36 | // CHECK: [[T0:%.*]] = landingpad |
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| 37 | // CHECK-NEXT: catch i8* null |
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| 38 | // CHECK-NEXT: [[T1:%.*]] = extractvalue { i8*, i32 } [[T0]], 0 |
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| 39 | // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T1]]) |
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| 40 | // CHECK-NEXT: unreachable |
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| 41 | // The terminate handler chained to by the cleanup lpad. |
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| 42 | // CHECK: [[T0:%.*]] = load i8*, i8** [[EXN]] |
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| 43 | // CHECK-NEXT: call void @__clang_call_terminate(i8* [[T0]]) |
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| 44 | // CHECK-NEXT: unreachable |
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| 45 | |
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| 46 | // CHECK-LABEL: define linkonce_odr hidden void @__clang_call_terminate( |
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| 47 | // CHECK: call i8* @__cxa_begin_catch( |
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| 48 | // CHECK-NEXT: call void @_ZSt9terminatev() |
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| 49 | // CHECK-NEXT: unreachable |
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| 50 | |
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