forked from OSchip/llvm-project
43 lines
1.7 KiB
C++
43 lines
1.7 KiB
C++
// RUN: %clang_cc1 -triple %itanium_abi_triple -verify %s
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// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++98 | FileCheck %s --check-prefix=CHECK-CXX98
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// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++11 | FileCheck %s --check-prefix=CHECK-CXX11
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// expected-no-diagnostics
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#if __cplusplus >= 201103L
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// CHECK-CXX11: @_ZZ15InitRefWithListvE1r = internal constant i32* @_ZGRZ15InitRefWithListvE1r_
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// CHECK-CXX11: @_ZGRZ15InitRefWithListvE1r_ = internal constant i32 123
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int InitRefWithList() { static const int &r = {123}; return r; }
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#endif
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struct XPTParamDescriptor {};
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struct nsXPTParamInfo {
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nsXPTParamInfo(const XPTParamDescriptor& desc);
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};
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void a(XPTParamDescriptor *params) {
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const nsXPTParamInfo& paramInfo = params[0];
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}
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// CodeGen of reference initialized const arrays.
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namespace PR5911 {
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template <typename T, int N> int f(const T (&a)[N]) { return N; }
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int iarr[] = { 1 };
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int test() { return f(iarr); }
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}
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// radar 7574896
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struct Foo { int foo; };
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Foo& ignoreSetMutex = *(new Foo);
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// Binding to a bit-field that requires a temporary.
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struct { int bitfield : 3; } s = { 3 };
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const int &s2 = s.bitfield;
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// In C++98, this forms a reference to itself. In C++11 onwards, this performs
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// copy-construction.
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struct SelfReference { SelfReference &r; };
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extern SelfReference self_reference_1;
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SelfReference self_reference_2 = {self_reference_1};
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// CHECK-CXX98: @self_reference_2 = {{.*}}global %[[SELF_REF:.*]] { %[[SELF_REF]]* @self_reference_1 }
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// CHECK-CXX11: @self_reference_2 = {{(dso_local )?}}global %[[SELF_REF:.*]] zeroinitializer
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// CHECK-CXX11: call {{.*}}memcpy{{.*}} @self_reference_2 {{.*}} @self_reference_1
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