| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++1y -O1 -disable-llvm-passes %s -o - | FileCheck %s -check-prefix=CHECKA -check-prefix=CHECK |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++1y -O1 -disable-llvm-passes -fcxx-exceptions %s -o - | FileCheck %s -check-prefix=CHECKB -check-prefix=CHECK |
| // expected-no-diagnostics |
| |
| // The variable template specialization x<Foo> generated in each file |
| // should be 'internal global' and not 'linkonce_odr global'. |
| |
| template <typename T> int x = 42; |
| |
| // CHECK-DAG: @_Z1xIZL3foovE3FooE = internal global |
| |
| // CHECK-DAG: define internal dereferenceable(4) i32* @_ZL3foov( |
| static int &foo() { |
| struct Foo { }; |
| |
| // CHECK-DAG: ret i32* @_Z1xIZL3foovE3FooE |
| return x<Foo>; |
| } |
| |
| |
| #if !__has_feature(cxx_exceptions) // File A |
| // CHECKA-DAG: define dereferenceable(4) i32* @_Z3barv( |
| int &bar() { |
| // CHECKA-DAG: call dereferenceable(4) i32* @_ZL3foov() |
| return foo(); |
| } |
| |
| #else // File B |
| |
| // CHECKB-DAG: declare dereferenceable(4) i32* @_Z3barv( |
| int &bar(); |
| |
| int main() { |
| // CHECKB-DAG: call dereferenceable(4) i32* @_Z3barv() |
| // CHECKB-DAG: call dereferenceable(4) i32* @_ZL3foov() |
| &bar() == &foo() ? throw 0 : (void)0; // Should not throw exception at runtime. |
| } |
| |
| #endif // end of Files A and B |
| |
