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Diffstat (limited to 'clang/test/CodeGenCXX/delete.cpp')
-rw-r--r-- | clang/test/CodeGenCXX/delete.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/delete.cpp b/clang/test/CodeGenCXX/delete.cpp new file mode 100644 index 0000000..5a88f9f --- /dev/null +++ b/clang/test/CodeGenCXX/delete.cpp @@ -0,0 +1,135 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s + +void t1(int *a) { + delete a; +} + +struct S { + int a; +}; + +// POD types. +void t3(S *s) { + delete s; +} + +// Non-POD +struct T { + ~T(); + int a; +}; + +// CHECK: define void @_Z2t4P1T +void t4(T *t) { + // CHECK: call void @_ZN1TD1Ev + // CHECK-NEXT: bitcast + // CHECK-NEXT: call void @_ZdlPv + delete t; +} + +// PR5102 +template <typename T> +class A { + public: operator T *() const; +}; + +void f() { + A<char*> a; + + delete a; +} + +namespace test0 { + struct A { + void *operator new(__SIZE_TYPE__ sz); + void operator delete(void *p) { ::operator delete(p); } + ~A() {} + }; + + // CHECK: define void @_ZN5test04testEPNS_1AE( + void test(A *a) { + // CHECK: call void @_ZN5test01AD1Ev + // CHECK-NEXT: bitcast + // CHECK-NEXT: call void @_ZN5test01AdlEPv + delete a; + } + + // CHECK: define linkonce_odr void @_ZN5test01AD1Ev(%"struct.test0::A"* %this) unnamed_addr + // CHECK: define linkonce_odr void @_ZN5test01AdlEPv +} + +namespace test1 { + struct A { + int x; + ~A(); + }; + + // CHECK: define void @_ZN5test14testEPA10_A20_NS_1AE( + void test(A (*arr)[10][20]) { + delete [] arr; + // CHECK: icmp eq [10 x [20 x [[A:%.*]]]]* [[PTR:%.*]], null + // CHECK-NEXT: br i1 + + // CHECK: [[BEGIN:%.*]] = getelementptr inbounds [10 x [20 x [[A]]]]* [[PTR]], i32 0, i32 0, i32 0 + // CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[BEGIN]] to i8* + // CHECK-NEXT: [[ALLOC:%.*]] = getelementptr inbounds i8* [[T0]], i64 -8 + // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[ALLOC]] to i64* + // CHECK-NEXT: [[COUNT:%.*]] = load i64* [[T1]] + // CHECK: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 [[COUNT]] + // CHECK-NEXT: [[ISEMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[END]] + // CHECK-NEXT: br i1 [[ISEMPTY]], + // CHECK: [[PAST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] + // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1 + // CHECK-NEXT: call void @_ZN5test11AD1Ev([[A]]* [[CUR]]) + // CHECK-NEXT: [[ISDONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]] + // CHECK-NEXT: br i1 [[ISDONE]] + // CHECK: call void @_ZdaPv(i8* [[ALLOC]]) + } +} + +namespace test2 { + // CHECK: define void @_ZN5test21fEPb + void f(bool *b) { + // CHECK: call void @_ZdlPv(i8* + delete b; + // CHECK: call void @_ZdaPv(i8* + delete [] b; + } +} + +namespace test3 { + void f(int a[10][20]) { + // CHECK: call void @_ZdaPv(i8* + delete a; + } +} + +namespace test4 { + // PR10341: ::delete with a virtual destructor + struct X { + virtual ~X(); + void operator delete (void *); + }; + + // CHECK: define void @_ZN5test421global_delete_virtualEPNS_1XE + void global_delete_virtual(X *xp) { + // CHECK: [[VTABLE:%.*]] = load void ([[X:%.*]])*** + // CHECK-NEXT: [[VFN:%.*]] = getelementptr inbounds void ([[X]])** [[VTABLE]], i64 0 + // CHECK-NEXT: [[VFNPTR:%.*]] = load void ([[X]])** [[VFN]] + // CHECK-NEXT: call void [[VFNPTR]]([[X]] [[OBJ:%.*]]) + // CHECK-NEXT: [[OBJVOID:%.*]] = bitcast [[X]] [[OBJ]] to i8* + // CHECK-NEXT: call void @_ZdlPv(i8* [[OBJVOID]]) nounwind + ::delete xp; + } +} + +namespace test5 { + struct Incomplete; + // CHECK: define void @_ZN5test523array_delete_incompleteEPNS_10IncompleteES1_ + void array_delete_incomplete(Incomplete *p1, Incomplete *p2) { + // CHECK: call void @_ZdlPv + delete p1; + // CHECK: call void @_ZdaPv + delete [] p2; + } +} |