| 1 | // 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 |
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| 2 | // 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 |
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| 3 | // expected-no-diagnostics |
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| 4 | |
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| 5 | // The variable template specialization x<Foo> generated in each file |
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| 6 | // should be 'internal global' and not 'linkonce_odr global'. |
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| 7 | |
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| 8 | template <typename T> int x = 42; |
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| 9 | |
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| 10 | // CHECK-DAG: @_Z1xIZL3foovE3FooE = internal global |
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| 11 | |
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| 12 | // CHECK-DAG: define internal dereferenceable(4) i32* @_ZL3foov( |
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| 13 | static int &foo() { |
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| 14 | struct Foo { }; |
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| 15 | |
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| 16 | // CHECK-DAG: ret i32* @_Z1xIZL3foovE3FooE |
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| 17 | return x<Foo>; |
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| 18 | } |
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| 19 | |
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| 20 | |
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| 21 | #if !__has_feature(cxx_exceptions) // File A |
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| 22 | // CHECKA-DAG: define dereferenceable(4) i32* @_Z3barv( |
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| 23 | int &bar() { |
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| 24 | // CHECKA-DAG: call dereferenceable(4) i32* @_ZL3foov() |
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| 25 | return foo(); |
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| 26 | } |
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| 27 | |
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| 28 | #else // File B |
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| 29 | |
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| 30 | // CHECKB-DAG: declare dereferenceable(4) i32* @_Z3barv( |
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| 31 | int &bar(); |
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| 32 | |
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| 33 | int main() { |
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| 34 | // CHECKB-DAG: call dereferenceable(4) i32* @_Z3barv() |
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| 35 | // CHECKB-DAG: call dereferenceable(4) i32* @_ZL3foov() |
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| 36 | &bar() == &foo() ? throw 0 : (void)0; // Should not throw exception at runtime. |
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| 37 | } |
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| 38 | |
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| 39 | #endif // end of Files A and B |
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| 40 | |
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| 41 | |
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