| 1 | // RUN: %clang_cc1 -std=c++98 -triple i386-unknown-unknown -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX98 |
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| 2 | // RUN: %clang_cc1 -std=c++11 -triple i386-unknown-unknown -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11 |
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| 3 | // RUN: %clang_cc1 -std=c++98 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX98-ELIDE |
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| 4 | // RUN: %clang_cc1 -std=c++11 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11-ELIDE |
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| 5 | |
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| 6 | // Reduced from PR12208 |
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| 7 | class X { |
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| 8 | public: |
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| 9 | X(); |
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| 10 | X(const X&); |
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| 11 | #if __cplusplus >= 201103L |
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| 12 | X(X&&); |
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| 13 | #endif |
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| 14 | ~X(); |
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| 15 | }; |
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| 16 | |
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| 17 | // CHECK-LABEL: define void @_Z4Testv( |
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| 18 | X Test() |
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| 19 | { |
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| 20 | X x; |
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| 21 | |
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| 22 | // Check that the copy constructor for X is called with result variable as |
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| 23 | // sret argument. |
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| 24 | // CHECK-CXX98: call void @_ZN1XC1ERKS_( |
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| 25 | // CHECK-CXX11: call void @_ZN1XC1EOS_( |
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| 26 | // CHECK-CXX98-ELIDE-NOT: call void @_ZN1XC1ERKS_( |
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| 27 | // CHECK-CXX11-ELIDE-NOT: call void @_ZN1XC1EOS_( |
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| 28 | |
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| 29 | // Make sure that the destructor for X is called. |
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| 30 | // FIXME: This call is present even in the -ELIDE runs, but is guarded by a |
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| 31 | // branch that is never taken in those cases. We could generate better IR |
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| 32 | // here. |
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| 33 | // CHECK: call void @_ZN1XD1Ev( |
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| 34 | return x; |
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| 35 | } |
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| 36 | |
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