derek.holloway
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45 lines
2.5 KiB
C++
45 lines
2.5 KiB
C++
// 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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// 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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// RUN: %clang_cc1 -std=c++11 -triple amdgcn-amd-amdhsa -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK --check-prefix=CHECK-CXX11-NONZEROALLOCAAS
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// RUN: %clang_cc1 -std=c++11 -triple spirv64-amd-amdhsa -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK --check-prefix=CHECK-CXX11-SPIRV
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// 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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// 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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// RUN: %clang_cc1 -std=c++11 -triple amdgcn-amd-amdhsa -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11-NONZEROALLOCAAS-ELIDE
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// RUN: %clang_cc1 -std=c++11 -triple spirv64-amd-amdhsa -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11-SPIRV-ELIDE
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// Reduced from PR12208
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class X {
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public:
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X();
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X(const X&);
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#if __cplusplus >= 201103L
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X(X&&);
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#endif
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~X();
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};
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// CHECK-LABEL: define{{.*}} void @_Z4Testv(
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// CHECK-SAME: ptr {{.*}}dead_on_unwind noalias writable sret([[CLASS_X:%.*]]) align 1 [[AGG_RESULT:%[^),]+]])
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X Test()
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{
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X x;
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// Check that the copy constructor for X is called with result variable as
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// sret argument.
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// CHECK-CXX98: call void @_ZN1XC1ERKS_(
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// CHECK-CXX11: call void @_ZN1XC1EOS_(
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// CHECK-CXX11-NONZEROALLOCAAS: call void @_ZN1XC1EOS_(ptr noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]
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// CHECK-CXX11-SPIRV: call spir_func addrspace(4) void @_ZN1XC1EOS_(ptr addrspace(4) noundef align 1 dereferenceable{{.*}}(1) [[AGG_RESULT]]
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// CHECK-CXX98-ELIDE-NOT: call void @_ZN1XC1ERKS_(
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// CHECK-CXX11-ELIDE-NOT: call void @_ZN1XC1EOS_(
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// CHECK-CXX11-NONZEROALLOCAAS-ELIDE-NOT: call void @_ZN1XC1EOS_(
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// CHECK-CXX11-SPIRV-ELIDE-NOT: call void @_ZN1XC1EOS_(
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// Make sure that the destructor for X is called.
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// FIXME: This call is present even in the -ELIDE runs, but is guarded by a
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// branch that is never taken in those cases. We could generate better IR
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// here.
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// CHECK: call {{.*}}void @_ZN1XD1Ev(
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return x;
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}
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