148 lines
4.2 KiB
C++
148 lines
4.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s
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void t1(int *a) {
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delete a;
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}
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struct S {
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int a;
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};
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// POD types.
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void t3(S *s) {
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delete s;
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}
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// Non-POD
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struct T {
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~T();
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int a;
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};
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// CHECK-LABEL: define void @_Z2t4P1T
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void t4(T *t) {
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// CHECK: call void @_ZN1TD1Ev
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @_ZdlPv
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delete t;
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}
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// PR5102
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template <typename T>
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class A {
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public: operator T *() const;
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};
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void f() {
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A<char*> a;
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delete a;
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}
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namespace test0 {
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struct A {
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void *operator new(__SIZE_TYPE__ sz);
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void operator delete(void *p) { ::operator delete(p); }
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~A() {}
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};
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// CHECK-LABEL: define void @_ZN5test04testEPNS_1AE(
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void test(A *a) {
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// CHECK: call void @_ZN5test01AD1Ev
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @_ZN5test01AdlEPv
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delete a;
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}
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// CHECK-LABEL: define linkonce_odr void @_ZN5test01AD1Ev(%"struct.test0::A"* %this) unnamed_addr
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// CHECK-LABEL: define linkonce_odr void @_ZN5test01AdlEPv
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}
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namespace test1 {
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struct A {
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int x;
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~A();
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};
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// CHECK-LABEL: define void @_ZN5test14testEPA10_A20_NS_1AE(
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void test(A (*arr)[10][20]) {
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delete [] arr;
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// CHECK: icmp eq [10 x [20 x [[A:%.*]]]]* [[PTR:%.*]], null
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// CHECK-NEXT: br i1
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// CHECK: [[BEGIN:%.*]] = getelementptr inbounds [10 x [20 x [[A]]]]* [[PTR]], i32 0, i32 0, i32 0
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// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[BEGIN]] to i8*
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// CHECK-NEXT: [[ALLOC:%.*]] = getelementptr inbounds i8* [[T0]], i64 -8
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// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[ALLOC]] to i64*
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// CHECK-NEXT: [[COUNT:%.*]] = load i64* [[T1]]
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// CHECK: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 [[COUNT]]
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// CHECK-NEXT: [[ISEMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[END]]
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// CHECK-NEXT: br i1 [[ISEMPTY]],
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// CHECK: [[PAST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
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// CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1
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// CHECK-NEXT: call void @_ZN5test11AD1Ev([[A]]* [[CUR]])
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// CHECK-NEXT: [[ISDONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]]
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// CHECK-NEXT: br i1 [[ISDONE]]
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// CHECK: call void @_ZdaPv(i8* [[ALLOC]])
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}
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}
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namespace test2 {
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// CHECK-LABEL: define void @_ZN5test21fEPb
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void f(bool *b) {
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// CHECK: call void @_ZdlPv(i8*
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delete b;
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// CHECK: call void @_ZdaPv(i8*
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delete [] b;
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}
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}
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namespace test3 {
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void f(int a[10][20]) {
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// CHECK: call void @_ZdaPv(i8*
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delete a;
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}
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}
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namespace test4 {
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// PR10341: ::delete with a virtual destructor
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struct X {
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virtual ~X();
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void operator delete (void *);
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};
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// CHECK-LABEL: define void @_ZN5test421global_delete_virtualEPNS_1XE
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void global_delete_virtual(X *xp) {
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// Load the offset-to-top from the vtable and apply it.
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// This has to be done first because the dtor can mess it up.
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// CHECK: [[T0:%.*]] = bitcast [[X:%.*]]* [[XP:%.*]] to i64**
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// CHECK-NEXT: [[VTABLE:%.*]] = load i64** [[T0]]
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds i64* [[VTABLE]], i64 -2
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// CHECK-NEXT: [[OFFSET:%.*]] = load i64* [[T0]], align 8
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// CHECK-NEXT: [[T0:%.*]] = bitcast [[X]]* [[XP]] to i8*
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// CHECK-NEXT: [[ALLOCATED:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[OFFSET]]
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// Load the complete-object destructor (not the deleting destructor)
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// and call it.
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// CHECK-NEXT: [[T0:%.*]] = bitcast [[X:%.*]]* [[XP:%.*]] to void ([[X]]*)***
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// CHECK-NEXT: [[VTABLE:%.*]] = load void ([[X]]*)*** [[T0]]
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds void ([[X]]*)** [[VTABLE]], i64 0
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// CHECK-NEXT: [[DTOR:%.*]] = load void ([[X]]*)** [[T0]]
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// CHECK-NEXT: call void [[DTOR]]([[X]]* [[OBJ:%.*]])
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// Call the global operator delete.
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// CHECK-NEXT: call void @_ZdlPv(i8* [[ALLOCATED]]) [[NUW:#[0-9]+]]
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::delete xp;
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}
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}
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namespace test5 {
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struct Incomplete;
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// CHECK-LABEL: define void @_ZN5test523array_delete_incompleteEPNS_10IncompleteES1_
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void array_delete_incomplete(Incomplete *p1, Incomplete *p2) {
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// CHECK: call void @_ZdlPv
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delete p1;
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// CHECK: call void @_ZdaPv
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delete [] p2;
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}
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}
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// CHECK: attributes [[NUW]] = {{[{].*}} nounwind {{.*[}]}}
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