forked from OSchip/llvm-project
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
// RUN: %clang_cc1 -triple i686-pc-linux-gnu %s -o - -emit-llvm -verify | FileCheck %s
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// expected-no-diagnostics
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typedef __typeof(sizeof(int)) size_t;
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namespace test1 {
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struct A { void operator delete(void*,size_t); int x; };
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// CHECK-LABEL: define void @_ZN5test11aEPNS_1AE(
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void a(A *x) {
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// CHECK: load
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// CHECK-NEXT: icmp eq {{.*}}, null
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// CHECK-NEXT: br i1
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// CHECK: call void @_ZN5test11AdlEPvj(i8* %{{.*}}, i32 4)
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delete x;
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}
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}
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// Check that we make cookies for the two-arg delete even when using
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// the global allocator and deallocator.
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namespace test2 {
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struct A {
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int x;
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void *operator new[](size_t);
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void operator delete[](void *, size_t);
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};
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// CHECK: define [[A:%.*]]* @_ZN5test24testEv()
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A *test() {
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// CHECK: [[NEW:%.*]] = call noalias i8* @_Znaj(i32 44)
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// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[NEW]] to i32*
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// CHECK-NEXT: store i32 10, i32* [[T0]]
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// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[NEW]], i64 4
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// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[A]]*
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// CHECK-NEXT: ret [[A]]* [[T2]]
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return ::new A[10];
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}
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// CHECK-LABEL: define void @_ZN5test24testEPNS_1AE(
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void test(A *p) {
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// CHECK: [[P:%.*]] = alloca [[A]]*, align 4
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// CHECK-NEXT: store [[A]]* {{%.*}}, [[A]]** [[P]], align 4
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// CHECK-NEXT: [[T0:%.*]] = load [[A]]*, [[A]]** [[P]], align 4
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// CHECK-NEXT: [[T1:%.*]] = icmp eq [[A]]* [[T0]], null
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// CHECK-NEXT: br i1 [[T1]],
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// CHECK: [[T2:%.*]] = bitcast [[A]]* [[T0]] to i8*
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 -4
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// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i32*
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// CHECK-NEXT: [[T5:%.*]] = load i32, i32* [[T4]]
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// CHECK-NEXT: call void @_ZdaPv(i8* [[T3]])
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// CHECK-NEXT: br label
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::delete[] p;
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}
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}
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// rdar://problem/8913519
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namespace test3 {
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struct A {
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int x;
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void operator delete[](void *, size_t);
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};
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struct B : A {};
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// CHECK-LABEL: define void @_ZN5test34testEv()
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void test() {
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// CHECK: call noalias i8* @_Znaj(i32 24)
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: store i32 5
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(void) new B[5];
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}
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}
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