423 lines
14 KiB
C++
423 lines
14 KiB
C++
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// RUN: %clang_cc1 %s -triple=thumbv7-apple-ios6.0 -fno-use-cxa-atexit -target-abi apcs-gnu -emit-llvm -std=gnu++98 -o - -fexceptions | FileCheck -check-prefix=CHECK -check-prefix=CHECK98 %s
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// RUN: %clang_cc1 %s -triple=thumbv7-apple-ios6.0 -fno-use-cxa-atexit -target-abi apcs-gnu -emit-llvm -std=gnu++11 -o - -fexceptions | FileCheck -check-prefix=CHECK -check-prefix=CHECK11 %s
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// CHECK: @_ZZN5test74testEvE1x = internal global i32 0, align 4
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// CHECK: @_ZGVZN5test74testEvE1x = internal global i32 0
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// CHECK: @_ZZN5test84testEvE1x = internal global [[TEST8A:.*]] zeroinitializer, align 1
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// CHECK: @_ZGVZN5test84testEvE1x = internal global i32 0
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typedef typeof(sizeof(int)) size_t;
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class foo {
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public:
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foo();
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virtual ~foo();
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};
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class bar : public foo {
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public:
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bar();
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};
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// The global dtor needs the right calling conv with -fno-use-cxa-atexit
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// rdar://7817590
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bar baz;
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// PR9593
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// Make sure atexit(3) is used for global dtors.
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// CHECK: call [[BAR:%.*]]* @_ZN3barC1Ev(
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// CHECK-NEXT: call i32 @atexit(void ()* @__dtor_baz)
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// CHECK-NOT: @_GLOBAL__D_a()
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// CHECK-LABEL: define internal void @__dtor_baz()
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// CHECK: call [[BAR]]* @_ZN3barD1Ev([[BAR]]* @baz)
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// Destructors and constructors must return this.
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namespace test1 {
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void foo();
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struct A {
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A(int i) { foo(); }
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~A() { foo(); }
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void bar() { foo(); }
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};
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// CHECK-LABEL: define{{.*}} void @_ZN5test14testEv()
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void test() {
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// CHECK: [[AV:%.*]] = alloca [[A:%.*]], align 1
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// CHECK: call [[A]]* @_ZN5test11AC1Ei([[A]]* {{[^,]*}} [[AV]], i32 10)
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// CHECK: invoke void @_ZN5test11A3barEv([[A]]* {{[^,]*}} [[AV]])
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// CHECK: call [[A]]* @_ZN5test11AD1Ev([[A]]* {{[^,]*}} [[AV]])
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// CHECK: ret void
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A a = 10;
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a.bar();
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}
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// CHECK: define linkonce_odr [[A]]* @_ZN5test11AC1Ei([[A]]* {{[^,]*}} returned {{[^,]*}} %this, i32 %i) unnamed_addr
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// CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
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// CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
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// CHECK: [[THIS1:%.*]] = load [[A]]*, [[A]]** [[THIS]]
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// CHECK: {{%.*}} = call [[A]]* @_ZN5test11AC2Ei(
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// CHECK: ret [[A]]* [[THIS1]]
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// CHECK: define linkonce_odr [[A]]* @_ZN5test11AD1Ev([[A]]* {{[^,]*}} returned {{[^,]*}} %this) unnamed_addr
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// CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
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// CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
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// CHECK: [[THIS1:%.*]] = load [[A]]*, [[A]]** [[THIS]]
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// CHECK: {{%.*}} = call [[A]]* @_ZN5test11AD2Ev(
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// CHECK: ret [[A]]* [[THIS1]]
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}
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// Awkward virtual cases.
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namespace test2 {
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void foo();
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struct A {
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int x;
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A(int);
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virtual ~A() { foo(); }
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};
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struct B {
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int y;
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int z;
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B(int);
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virtual ~B() { foo(); }
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};
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struct C : A, virtual B {
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int q;
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C(int i) : A(i), B(i) { foo(); }
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~C() { foo(); }
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};
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void test() {
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C c = 10;
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}
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// Tests at eof
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}
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namespace test3 {
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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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void a() {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31aEv()
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// CHECK: call noalias nonnull i8* @_Znam(i32 48)
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// CHECK: store i32 4
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// CHECK: store i32 10
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A *x = new A[10];
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}
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void b(int n) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31bEi(
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// CHECK: [[N:%.*]] = load i32, i32*
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// CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
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// CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
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// CHECK: [[OR:%.*]] = or i1
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// CHECK: [[SZ:%.*]] = select i1 [[OR]]
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// CHECK: call noalias nonnull i8* @_Znam(i32 [[SZ]])
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// CHECK: store i32 4
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// CHECK: store i32 [[N]]
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A *x = new A[n];
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}
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void c() {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31cEv()
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// CHECK: call noalias nonnull i8* @_Znam(i32 808)
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// CHECK: store i32 4
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// CHECK: store i32 200
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A (*x)[20] = new A[10][20];
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}
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void d(int n) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31dEi(
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// CHECK: [[N:%.*]] = load i32, i32*
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// CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 80)
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// CHECK: [[NE:%.*]] = mul i32 [[N]], 20
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// CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
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// CHECK: [[SZ:%.*]] = select
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// CHECK: call noalias nonnull i8* @_Znam(i32 [[SZ]])
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// CHECK: store i32 4
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// CHECK: store i32 [[NE]]
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A (*x)[20] = new A[n][20];
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}
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void e(A *x) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31eEPNS_1AE(
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// CHECK: icmp eq {{.*}}, null
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// CHECK: getelementptr {{.*}}, i32 -8
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// CHECK: getelementptr {{.*}}, i32 4
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// CHECK: bitcast {{.*}} to i32*
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// CHECK: load
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// CHECK98: invoke {{.*}} @_ZN5test31AD1Ev
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// CHECK11: call {{.*}} @_ZN5test31AD1Ev
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// CHECK: call void @_ZdaPv
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delete [] x;
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}
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void f(A (*x)[20]) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test31fEPA20_NS_1AE(
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// CHECK: icmp eq {{.*}}, null
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// CHECK: getelementptr {{.*}}, i32 -8
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// CHECK: getelementptr {{.*}}, i32 4
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// CHECK: bitcast {{.*}} to i32*
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// CHECK: load
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// CHECK98: invoke {{.*}} @_ZN5test31AD1Ev
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// CHECK11: call {{.*}} @_ZN5test31AD1Ev
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// CHECK: call void @_ZdaPv
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delete [] x;
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}
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}
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namespace test4 {
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struct A {
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int x;
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void operator delete[](void *, size_t sz);
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};
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void a() {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41aEv()
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// CHECK: call noalias nonnull i8* @_Znam(i32 48)
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// CHECK: store i32 4
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// CHECK: store i32 10
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A *x = new A[10];
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}
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void b(int n) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41bEi(
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// CHECK: [[N:%.*]] = load i32, i32*
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// CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
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// CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
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// CHECK: [[SZ:%.*]] = select
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// CHECK: call noalias nonnull i8* @_Znam(i32 [[SZ]])
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// CHECK: store i32 4
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// CHECK: store i32 [[N]]
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A *x = new A[n];
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}
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void c() {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41cEv()
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// CHECK: call noalias nonnull i8* @_Znam(i32 808)
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// CHECK: store i32 4
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// CHECK: store i32 200
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A (*x)[20] = new A[10][20];
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}
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void d(int n) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41dEi(
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// CHECK: [[N:%.*]] = load i32, i32*
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// CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 80)
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// CHECK: [[NE:%.*]] = mul i32 [[N]], 20
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// CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
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// CHECK: [[SZ:%.*]] = select
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// CHECK: call noalias nonnull i8* @_Znam(i32 [[SZ]])
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// CHECK: store i32 4
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// CHECK: store i32 [[NE]]
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A (*x)[20] = new A[n][20];
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}
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void e(A *x) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41eEPNS_1AE(
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// CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i32 -8
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// CHECK: getelementptr inbounds {{.*}}, i32 4
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// CHECK: bitcast
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// CHECK: [[T0:%.*]] = load i32, i32*
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// CHECK: [[T1:%.*]] = mul i32 4, [[T0]]
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// CHECK: [[T2:%.*]] = add i32 [[T1]], 8
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// CHECK: call void @_ZN5test41AdaEPvm(i8* [[ALLOC]], i32 [[T2]])
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delete [] x;
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}
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void f(A (*x)[20]) {
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// CHECK-LABEL: define{{.*}} void @_ZN5test41fEPA20_NS_1AE(
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// CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i32 -8
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// CHECK: getelementptr inbounds {{.*}}, i32 4
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// CHECK: bitcast
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// CHECK: [[T0:%.*]] = load i32, i32*
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// CHECK: [[T1:%.*]] = mul i32 4, [[T0]]
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// CHECK: [[T2:%.*]] = add i32 [[T1]], 8
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// CHECK: call void @_ZN5test41AdaEPvm(i8* [[ALLOC]], i32 [[T2]])
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delete [] x;
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}
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}
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// <rdar://problem/8386802>: don't crash
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namespace test5 {
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struct A {
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~A();
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};
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// CHECK-LABEL: define{{.*}} void @_ZN5test54testEPNS_1AE
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void test(A *a) {
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// CHECK: [[PTR:%.*]] = alloca [[A:%.*]]*, align 4
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// CHECK-NEXT: store [[A]]* {{.*}}, [[A]]** [[PTR]], align 4
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// CHECK-NEXT: [[TMP:%.*]] = load [[A]]*, [[A]]** [[PTR]], align 4
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// CHECK-NEXT: call [[A]]* @_ZN5test51AD1Ev([[A]]* {{[^,]*}} [[TMP]])
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// CHECK-NEXT: ret void
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a->~A();
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}
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}
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namespace test6 {
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struct A {
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virtual ~A();
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};
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// CHECK-LABEL: define{{.*}} void @_ZN5test64testEPNS_1AE
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void test(A *a) {
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// CHECK: [[AVAR:%.*]] = alloca [[A:%.*]]*, align 4
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// CHECK-NEXT: store [[A]]* {{.*}}, [[A]]** [[AVAR]], align 4
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// CHECK-NEXT: [[V:%.*]] = load [[A]]*, [[A]]** [[AVAR]], align 4
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// CHECK-NEXT: [[ISNULL:%.*]] = icmp eq [[A]]* [[V]], null
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// CHECK-NEXT: br i1 [[ISNULL]]
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// CHECK: [[T0:%.*]] = bitcast [[A]]* [[V]] to void ([[A]]*)***
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// CHECK-NEXT: [[T1:%.*]] = load void ([[A]]*)**, void ([[A]]*)*** [[T0]]
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds void ([[A]]*)*, void ([[A]]*)** [[T1]], i64 1
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// CHECK-NEXT: [[T3:%.*]] = load void ([[A]]*)*, void ([[A]]*)** [[T2]]
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// CHECK-NEXT: call void [[T3]]([[A]]* {{[^,]*}} [[V]])
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// CHECK-NEXT: br label
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// CHECK: ret void
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delete a;
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}
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}
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namespace test7 {
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int foo();
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// Static and guard tested at top of file
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// CHECK-LABEL: define{{.*}} void @_ZN5test74testEv() {{.*}} personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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void test() {
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// CHECK: [[T0:%.*]] = load atomic i8, i8* bitcast (i32* @_ZGVZN5test74testEvE1x to i8*) acquire, align 4
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// CHECK-NEXT: [[T1:%.*]] = and i8 [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = icmp eq i8 [[T1]], 0
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// CHECK-NEXT: br i1 [[T2]]
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// -> fallthrough, end
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// CHECK: [[T3:%.*]] = call i32 @__cxa_guard_acquire(i32* @_ZGVZN5test74testEvE1x)
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// CHECK-NEXT: [[T4:%.*]] = icmp ne i32 [[T3]], 0
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// CHECK-NEXT: br i1 [[T4]]
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// -> fallthrough, end
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// CHECK: [[INIT:%.*]] = invoke i32 @_ZN5test73fooEv()
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// CHECK: store i32 [[INIT]], i32* @_ZZN5test74testEvE1x, align 4
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// CHECK-NEXT: call void @__cxa_guard_release(i32* @_ZGVZN5test74testEvE1x)
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// CHECK-NEXT: br label
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// -> end
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// end:
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// CHECK: ret void
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static int x = foo();
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// CHECK: landingpad { i8*, i32 }
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// CHECK-NEXT: cleanup
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// CHECK: call void @__cxa_guard_abort(i32* @_ZGVZN5test74testEvE1x)
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// CHECK: resume { i8*, i32 }
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}
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}
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namespace test8 {
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struct A {
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A();
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~A();
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};
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// Static and guard tested at top of file
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// CHECK-LABEL: define{{.*}} void @_ZN5test84testEv() {{.*}} personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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void test() {
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// CHECK: [[T0:%.*]] = load atomic i8, i8* bitcast (i32* @_ZGVZN5test84testEvE1x to i8*) acquire, align 4
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// CHECK-NEXT: [[T1:%.*]] = and i8 [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = icmp eq i8 [[T1]], 0
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// CHECK-NEXT: br i1 [[T2]]
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// -> fallthrough, end
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// CHECK: [[T3:%.*]] = call i32 @__cxa_guard_acquire(i32* @_ZGVZN5test84testEvE1x)
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// CHECK-NEXT: [[T4:%.*]] = icmp ne i32 [[T3]], 0
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// CHECK-NEXT: br i1 [[T4]]
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// -> fallthrough, end
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// CHECK: [[INIT:%.*]] = invoke [[TEST8A]]* @_ZN5test81AC1Ev([[TEST8A]]* {{[^,]*}} @_ZZN5test84testEvE1x)
|
||
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// FIXME: Here we register a global destructor that
|
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// unconditionally calls the destructor. That's what we've always
|
||
|
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// done for -fno-use-cxa-atexit here, but that's really not
|
||
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// semantically correct at all.
|
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// CHECK: call void @__cxa_guard_release(i32* @_ZGVZN5test84testEvE1x)
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// CHECK-NEXT: br label
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// -> end
|
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// end:
|
||
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// CHECK: ret void
|
||
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static A x;
|
||
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|
||
|
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// CHECK: landingpad { i8*, i32 }
|
||
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// CHECK-NEXT: cleanup
|
||
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// CHECK: call void @__cxa_guard_abort(i32* @_ZGVZN5test84testEvE1x)
|
||
|
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// CHECK: resume { i8*, i32 }
|
||
|
|
}
|
||
|
|
}
|
||
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|
||
|
|
// rdar://12836470
|
||
|
|
// Use a larger-than-mandated array cookie when allocating an
|
||
|
|
// array whose type is overaligned.
|
||
|
|
namespace test9 {
|
||
|
|
class __attribute__((aligned(16))) A {
|
||
|
|
float data[4];
|
||
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|
public:
|
||
|
|
A();
|
||
|
|
~A();
|
||
|
|
};
|
||
|
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|
||
|
|
A *testNew(unsigned n) {
|
||
|
|
return new A[n];
|
||
|
|
}
|
||
|
|
// CHECK: define{{.*}} [[TEST9:%.*]]* @_ZN5test97testNewEj(i32
|
||
|
|
// CHECK: [[N_VAR:%.*]] = alloca i32, align 4
|
||
|
|
// CHECK: [[N:%.*]] = load i32, i32* [[N_VAR]], align 4
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 16)
|
||
|
|
// CHECK-NEXT: [[O0:%.*]] = extractvalue { i32, i1 } [[T0]], 1
|
||
|
|
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 0
|
||
|
|
// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T1]], i32 16)
|
||
|
|
// CHECK-NEXT: [[O1:%.*]] = extractvalue { i32, i1 } [[T2]], 1
|
||
|
|
// CHECK-NEXT: [[OVERFLOW:%.*]] = or i1 [[O0]], [[O1]]
|
||
|
|
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 0
|
||
|
|
// CHECK-NEXT: [[T4:%.*]] = select i1 [[OVERFLOW]], i32 -1, i32 [[T3]]
|
||
|
|
// CHECK-NEXT: [[ALLOC:%.*]] = call noalias nonnull i8* @_Znam(i32 [[T4]])
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[ALLOC]] to i32*
|
||
|
|
// CHECK-NEXT: store i32 16, i32* [[T0]]
|
||
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i32, i32* [[T0]], i32 1
|
||
|
|
// CHECK-NEXT: store i32 [[N]], i32* [[T1]]
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds i8, i8* [[ALLOC]], i32 16
|
||
|
|
// CHECK-NEXT: bitcast i8* [[T0]] to [[TEST9]]*
|
||
|
|
// Array allocation follows.
|
||
|
|
|
||
|
|
void testDelete(A *array) {
|
||
|
|
delete[] array;
|
||
|
|
}
|
||
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test910testDeleteEPNS_1AE(
|
||
|
|
// CHECK: [[BEGIN:%.*]] = load [[TEST9]]*, [[TEST9]]**
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[TEST9]]* [[BEGIN]], null
|
||
|
|
// CHECK-NEXT: br i1 [[T0]],
|
||
|
|
// CHECK: [[T0:%.*]] = bitcast [[TEST9]]* [[BEGIN]] to i8*
|
||
|
|
// CHECK-NEXT: [[ALLOC:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 -16
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds i8, i8* [[ALLOC]], i32 4
|
||
|
|
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to i32*
|
||
|
|
// CHECK-NEXT: [[N:%.*]] = load i32, i32* [[T1]]
|
||
|
|
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[TEST9]], [[TEST9]]* [[BEGIN]], i32 [[N]]
|
||
|
|
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[TEST9]]* [[BEGIN]], [[END]]
|
||
|
|
// CHECK-NEXT: br i1 [[T0]],
|
||
|
|
// Array deallocation follows.
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define linkonce_odr [[C:%.*]]* @_ZTv0_n12_N5test21CD1Ev(
|
||
|
|
// CHECK: call [[C]]* @_ZN5test21CD1Ev(
|
||
|
|
// CHECK: ret [[C]]* undef
|
||
|
|
|
||
|
|
// CHECK-LABEL: define linkonce_odr void @_ZTv0_n12_N5test21CD0Ev(
|
||
|
|
// CHECK: call void @_ZN5test21CD0Ev(
|
||
|
|
// CHECK: ret void
|