| Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++1y -O1 -disable-llvm-optzns %s -o - | FileCheck %s -check-prefix=CHECKA -check-prefix=CHECK |
| 2 | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++1y -O1 -disable-llvm-optzns -fcxx-exceptions %s -o - | FileCheck %s -check-prefix=CHECKB -check-prefix=CHECK |
| 3 | // expected-no-diagnostics |
| 4 | |
| 5 | // The variable template specialization x<Foo> generated in each file |
| 6 | // should be 'internal global' and not 'linkonce_odr global'. |
| 7 | |
| 8 | template <typename T> int x = 42; |
| 9 | |
| 10 | // CHECK-DAG: @_Z1xIZL3foovE3FooE = internal global |
| 11 | |
| 12 | // CHECK-DAG: define internal dereferenceable(4) i32* @_ZL3foov( |
| 13 | static int &foo() { |
| 14 | struct Foo { }; |
| 15 | |
| 16 | // CHECK-DAG: ret i32* @_Z1xIZL3foovE3FooE |
| 17 | return x<Foo>; |
| 18 | } |
| 19 | |
| 20 | |
| 21 | #if !__has_feature(cxx_exceptions) // File A |
| 22 | // CHECKA-DAG: define dereferenceable(4) i32* @_Z3barv( |
| 23 | int &bar() { |
| 24 | // CHECKA-DAG: call dereferenceable(4) i32* @_ZL3foov() |
| 25 | return foo(); |
| 26 | } |
| 27 | |
| 28 | #else // File B |
| 29 | |
| 30 | // CHECKB-DAG: declare dereferenceable(4) i32* @_Z3barv( |
| 31 | int &bar(); |
| 32 | |
| 33 | int main() { |
| 34 | // CHECKB-DAG: call dereferenceable(4) i32* @_Z3barv() |
| 35 | // CHECKB-DAG: call dereferenceable(4) i32* @_ZL3foov() |
| 36 | &bar() == &foo() ? throw 0 : (void)0; // Should not throw exception at runtime. |
| 37 | } |
| 38 | |
| 39 | #endif // end of Files A and B |
| 40 | |