| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-pc-windows-msvc -mconstructor-aliases -fexceptions -fcxx-exceptions | FileCheck -check-prefix WIN64 %s |
| |
| extern "C" void might_throw(); |
| |
| // Simplify the generated IR with noexcept. |
| extern "C" void recover() noexcept(true); |
| extern "C" void handle_exception(void *e) noexcept(true); |
| |
| extern "C" void catch_all() { |
| try { |
| might_throw(); |
| } catch (...) { |
| recover(); |
| } |
| } |
| |
| // WIN64-LABEL: define void @catch_all() |
| // WIN64: invoke void @might_throw() |
| // WIN64-NEXT: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]] |
| // |
| // WIN64: [[cont]] |
| // WIN64: br label %[[ret:[^ ]*]] |
| // |
| // WIN64: [[lpad]] |
| // WIN64: landingpad { i8*, i32 } |
| // WIN64-NEXT: catch i8* null |
| // WIN64: call void @llvm.eh.begincatch(i8* %{{[^,]*}}, i8* null) |
| // WIN64: call void @recover() |
| // WIN64: call void @llvm.eh.endcatch() |
| // WIN64: br label %[[ret]] |
| // |
| // WIN64: [[ret]] |
| // WIN64: ret void |
| |
| extern "C" void catch_int() { |
| try { |
| might_throw(); |
| } catch (int e) { |
| handle_exception(&e); |
| } |
| } |
| |
| // WIN64-LABEL: define void @catch_int() |
| // WIN64: landingpad { i8*, i32 } |
| // WIN64: %[[e_i8:[^ ]*]] = bitcast i32* %[[e_addr:[^ ]*]] to i8* |
| // WIN64: call void @llvm.eh.begincatch(i8* %{{.*}}, i8* %[[e_i8]]) |
| // WIN64: %[[e_i8:[^ ]*]] = bitcast i32* %[[e_addr]] to i8* |
| // WIN64: call void @handle_exception(i8* %[[e_i8]]) |
| // WIN64: call void @llvm.eh.endcatch() |
| |
| extern "C" void catch_int_unnamed() { |
| try { |
| might_throw(); |
| } catch (int) { |
| } |
| } |
| |
| // WIN64-LABEL: define void @catch_int_unnamed() |
| // WIN64: landingpad { i8*, i32 } |
| // WIN64: call void @llvm.eh.begincatch(i8* %{{.*}}, i8* null) |
| // WIN64: call void @llvm.eh.endcatch() |
| |
| struct A { |
| A(); |
| A(const A &o); |
| ~A(); |
| int a; |
| }; |
| |
| struct B : A { |
| B(); |
| B(const B &o); |
| ~B(); |
| int b; |
| }; |
| |
| extern "C" void catch_a_byval() { |
| try { |
| might_throw(); |
| } catch (A e) { |
| handle_exception(&e); |
| } |
| } |
| |
| // WIN64-LABEL: define void @catch_a_byval() |
| // WIN64: %[[e_addr:[^ ]*]] = alloca %struct.A |
| // WIN64: landingpad { i8*, i32 } |
| // WIN64: %[[e_i8:[^ ]*]] = bitcast %struct.A* %[[e_addr]] to i8* |
| // WIN64: call void @llvm.eh.begincatch(i8* %{{.*}}, i8* %[[e_i8]]) |
| // WIN64: %[[e_i8:[^ ]*]] = bitcast %struct.A* %[[e_addr]] to i8* |
| // WIN64: call void @handle_exception(i8* %[[e_i8]]) |
| // WIN64: call void @llvm.eh.endcatch() |
| |
| extern "C" void catch_a_ref() { |
| try { |
| might_throw(); |
| } catch (A &e) { |
| handle_exception(&e); |
| } |
| } |
| |
| // WIN64-LABEL: define void @catch_a_ref() |
| // WIN64: %[[e_addr:[^ ]*]] = alloca %struct.A* |
| // WIN64: landingpad { i8*, i32 } |
| // WIN64: %[[e_i8:[^ ]*]] = bitcast %struct.A** %[[e_addr]] to i8* |
| // WIN64: call void @llvm.eh.begincatch(i8* %{{.*}}, i8* %[[e_i8]]) |
| // WIN64: %[[eptr:[^ ]*]] = load %struct.A*, %struct.A** %[[e_addr]] |
| // WIN64: %[[eptr_i8:[^ ]*]] = bitcast %struct.A* %[[eptr]] to i8* |
| // WIN64: call void @handle_exception(i8* %[[eptr_i8]]) |
| // WIN64: call void @llvm.eh.endcatch() |
| |
| extern "C" void fn_with_exc_spec() throw(int) { |
| might_throw(); |
| } |
| |
| // WIN64-LABEL: define void @fn_with_exc_spec() |
| // WIN64: call void @might_throw() |
| // WIN64-NEXT: ret void |