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-rw-r--r--clang/test/CodeGenCXX/arm.cpp369
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diff --git a/clang/test/CodeGenCXX/arm.cpp b/clang/test/CodeGenCXX/arm.cpp
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+// RUN: %clang_cc1 %s -triple=thumbv7-apple-ios3.0 -fno-use-cxa-atexit -target-abi apcs-gnu -emit-llvm -o - -fexceptions | FileCheck %s
+
+// CHECK: @_ZZN5test74testEvE1x = internal global i32 0, align 4
+// CHECK: @_ZGVZN5test74testEvE1x = internal global i32 0
+// CHECK: @_ZZN5test84testEvE1x = internal global [[TEST8A:.*]] zeroinitializer, align 1
+// CHECK: @_ZGVZN5test84testEvE1x = internal global i32 0
+
+typedef typeof(sizeof(int)) size_t;
+
+class foo {
+public:
+ foo();
+ virtual ~foo();
+};
+
+class bar : public foo {
+public:
+ bar();
+};
+
+// The global dtor needs the right calling conv with -fno-use-cxa-atexit
+// rdar://7817590
+bar baz;
+
+// PR9593
+// Make sure atexit(3) is used for global dtors.
+
+// CHECK: call [[BAR:%.*]]* @_ZN3barC1Ev(
+// CHECK-NEXT: call i32 @atexit(void ()* @__dtor_baz)
+
+// CHECK: define internal void @__dtor_baz()
+// CHECK: call [[BAR]]* @_ZN3barD1Ev([[BAR]]* @baz)
+
+// Destructors and constructors must return this.
+namespace test1 {
+ void foo();
+
+ struct A {
+ A(int i) { foo(); }
+ ~A() { foo(); }
+ void bar() { foo(); }
+ };
+
+ // CHECK: define void @_ZN5test14testEv()
+ void test() {
+ // CHECK: [[AV:%.*]] = alloca [[A:%.*]], align 1
+ // CHECK: call [[A]]* @_ZN5test11AC1Ei([[A]]* [[AV]], i32 10)
+ // CHECK: invoke void @_ZN5test11A3barEv([[A]]* [[AV]])
+ // CHECK: call [[A]]* @_ZN5test11AD1Ev([[A]]* [[AV]])
+ // CHECK: ret void
+ A a = 10;
+ a.bar();
+ }
+
+ // CHECK: define linkonce_odr [[A]]* @_ZN5test11AC1Ei([[A]]* %this, i32 %i) unnamed_addr
+ // CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
+ // CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
+ // CHECK: [[THIS1:%.*]] = load [[A]]** [[THIS]]
+ // CHECK: call [[A]]* @_ZN5test11AC2Ei(
+ // CHECK: ret [[A]]* [[THIS1]]
+
+ // CHECK: define linkonce_odr [[A]]* @_ZN5test11AD1Ev([[A]]* %this) unnamed_addr
+ // CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
+ // CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
+ // CHECK: [[THIS1:%.*]] = load [[A]]** [[THIS]]
+ // CHECK: call [[A]]* @_ZN5test11AD2Ev(
+ // CHECK: ret [[A]]* [[THIS1]]
+}
+
+// Awkward virtual cases.
+namespace test2 {
+ void foo();
+
+ struct A {
+ int x;
+
+ A(int);
+ virtual ~A() { foo(); }
+ };
+
+ struct B {
+ int y;
+ int z;
+
+ B(int);
+ virtual ~B() { foo(); }
+ };
+
+ struct C : A, virtual B {
+ int q;
+
+ C(int i) : A(i), B(i) { foo(); }
+ ~C() { foo(); }
+ };
+
+ void test() {
+ C c = 10;
+ }
+
+ // Tests at eof
+}
+
+namespace test3 {
+ struct A {
+ int x;
+ ~A();
+ };
+
+ void a() {
+ // CHECK: define void @_ZN5test31aEv()
+ // CHECK: call noalias i8* @_Znam(i32 48)
+ // CHECK: store i32 4
+ // CHECK: store i32 10
+ A *x = new A[10];
+ }
+
+ void b(int n) {
+ // CHECK: define void @_ZN5test31bEi(
+ // CHECK: [[N:%.*]] = load i32*
+ // CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
+ // CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
+ // CHECK: [[OR:%.*]] = or i1
+ // CHECK: [[SZ:%.*]] = select i1 [[OR]]
+ // CHECK: call noalias i8* @_Znam(i32 [[SZ]])
+ // CHECK: store i32 4
+ // CHECK: store i32 [[N]]
+ A *x = new A[n];
+ }
+
+ void c() {
+ // CHECK: define void @_ZN5test31cEv()
+ // CHECK: call noalias i8* @_Znam(i32 808)
+ // CHECK: store i32 4
+ // CHECK: store i32 200
+ A (*x)[20] = new A[10][20];
+ }
+
+ void d(int n) {
+ // CHECK: define void @_ZN5test31dEi(
+ // CHECK: [[N:%.*]] = load i32*
+ // CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 80)
+ // CHECK: [[NE:%.*]] = mul i32 [[N]], 20
+ // CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
+ // CHECK: [[SZ:%.*]] = select
+ // CHECK: call noalias i8* @_Znam(i32 [[SZ]])
+ // CHECK: store i32 4
+ // CHECK: store i32 [[NE]]
+ A (*x)[20] = new A[n][20];
+ }
+
+ void e(A *x) {
+ // CHECK: define void @_ZN5test31eEPNS_1AE(
+ // CHECK: icmp eq {{.*}}, null
+ // CHECK: getelementptr {{.*}}, i64 -8
+ // CHECK: getelementptr {{.*}}, i64 4
+ // CHECK: bitcast {{.*}} to i32*
+ // CHECK: load
+ // CHECK: invoke {{.*}} @_ZN5test31AD1Ev
+ // CHECK: call void @_ZdaPv
+ delete [] x;
+ }
+
+ void f(A (*x)[20]) {
+ // CHECK: define void @_ZN5test31fEPA20_NS_1AE(
+ // CHECK: icmp eq {{.*}}, null
+ // CHECK: getelementptr {{.*}}, i64 -8
+ // CHECK: getelementptr {{.*}}, i64 4
+ // CHECK: bitcast {{.*}} to i32*
+ // CHECK: load
+ // CHECK: invoke {{.*}} @_ZN5test31AD1Ev
+ // CHECK: call void @_ZdaPv
+ delete [] x;
+ }
+}
+
+namespace test4 {
+ struct A {
+ int x;
+ void operator delete[](void *, size_t sz);
+ };
+
+ void a() {
+ // CHECK: define void @_ZN5test41aEv()
+ // CHECK: call noalias i8* @_Znam(i32 48)
+ // CHECK: store i32 4
+ // CHECK: store i32 10
+ A *x = new A[10];
+ }
+
+ void b(int n) {
+ // CHECK: define void @_ZN5test41bEi(
+ // CHECK: [[N:%.*]] = load i32*
+ // CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
+ // CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
+ // CHECK: [[SZ:%.*]] = select
+ // CHECK: call noalias i8* @_Znam(i32 [[SZ]])
+ // CHECK: store i32 4
+ // CHECK: store i32 [[N]]
+ A *x = new A[n];
+ }
+
+ void c() {
+ // CHECK: define void @_ZN5test41cEv()
+ // CHECK: call noalias i8* @_Znam(i32 808)
+ // CHECK: store i32 4
+ // CHECK: store i32 200
+ A (*x)[20] = new A[10][20];
+ }
+
+ void d(int n) {
+ // CHECK: define void @_ZN5test41dEi(
+ // CHECK: [[N:%.*]] = load i32*
+ // CHECK: @llvm.umul.with.overflow.i32(i32 [[N]], i32 80)
+ // CHECK: [[NE:%.*]] = mul i32 [[N]], 20
+ // CHECK: @llvm.uadd.with.overflow.i32(i32 {{.*}}, i32 8)
+ // CHECK: [[SZ:%.*]] = select
+ // CHECK: call noalias i8* @_Znam(i32 [[SZ]])
+ // CHECK: store i32 4
+ // CHECK: store i32 [[NE]]
+ A (*x)[20] = new A[n][20];
+ }
+
+ void e(A *x) {
+ // CHECK: define void @_ZN5test41eEPNS_1AE(
+ // CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i64 -8
+ // CHECK: getelementptr inbounds {{.*}}, i64 4
+ // CHECK: bitcast
+ // CHECK: [[T0:%.*]] = load i32*
+ // CHECK: [[T1:%.*]] = mul i32 4, [[T0]]
+ // CHECK: [[T2:%.*]] = add i32 [[T1]], 8
+ // CHECK: call void @_ZN5test41AdaEPvm(i8* [[ALLOC]], i32 [[T2]])
+ delete [] x;
+ }
+
+ void f(A (*x)[20]) {
+ // CHECK: define void @_ZN5test41fEPA20_NS_1AE(
+ // CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i64 -8
+ // CHECK: getelementptr inbounds {{.*}}, i64 4
+ // CHECK: bitcast
+ // CHECK: [[T0:%.*]] = load i32*
+ // CHECK: [[T1:%.*]] = mul i32 4, [[T0]]
+ // CHECK: [[T2:%.*]] = add i32 [[T1]], 8
+ // CHECK: call void @_ZN5test41AdaEPvm(i8* [[ALLOC]], i32 [[T2]])
+ delete [] x;
+ }
+}
+
+// <rdar://problem/8386802>: don't crash
+namespace test5 {
+ struct A {
+ ~A();
+ };
+
+ // CHECK: define void @_ZN5test54testEPNS_1AE
+ void test(A *a) {
+ // CHECK: [[PTR:%.*]] = alloca [[A:%.*]]*, align 4
+ // CHECK-NEXT: store [[A]]* {{.*}}, [[A]]** [[PTR]], align 4
+ // CHECK-NEXT: [[TMP:%.*]] = load [[A]]** [[PTR]], align 4
+ // CHECK-NEXT: call [[A]]* @_ZN5test51AD1Ev([[A]]* [[TMP]])
+ // CHECK-NEXT: ret void
+ a->~A();
+ }
+}
+
+namespace test6 {
+ struct A {
+ virtual ~A();
+ };
+
+ // CHECK: define void @_ZN5test64testEPNS_1AE
+ void test(A *a) {
+ // CHECK: [[AVAR:%.*]] = alloca [[A:%.*]]*, align 4
+ // CHECK-NEXT: store [[A]]* {{.*}}, [[A]]** [[AVAR]], align 4
+ // CHECK-NEXT: [[V:%.*]] = load [[A]]** [[AVAR]], align 4
+ // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq [[A]]* [[V]], null
+ // CHECK-NEXT: br i1 [[ISNULL]]
+ // CHECK: [[T0:%.*]] = bitcast [[A]]* [[V]] to [[A]]* ([[A]]*)***
+ // CHECK-NEXT: [[T1:%.*]] = load [[A]]* ([[A]]*)*** [[T0]]
+ // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]]* ([[A]]*)** [[T1]], i64 1
+ // CHECK-NEXT: [[T3:%.*]] = load [[A]]* ([[A]]*)** [[T2]]
+ // CHECK-NEXT: call [[A]]* [[T3]]([[A]]* [[V]])
+ // CHECK-NEXT: br label
+ // CHECK: ret void
+ delete a;
+ }
+}
+
+namespace test7 {
+ int foo();
+
+ // Static and guard tested at top of file
+
+ // CHECK: define void @_ZN5test74testEv()
+ void test() {
+ // CHECK: [[T0:%.*]] = load i32* @_ZGVZN5test74testEvE1x
+ // CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], 1
+ // CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0
+ // CHECK-NEXT: br i1 [[T2]]
+ // -> fallthrough, end
+ // CHECK: [[T3:%.*]] = call i32 @__cxa_guard_acquire(i32* @_ZGVZN5test74testEvE1x)
+ // CHECK-NEXT: [[T4:%.*]] = icmp ne i32 [[T3]], 0
+ // CHECK-NEXT: br i1 [[T4]]
+ // -> fallthrough, end
+ // CHECK: [[INIT:%.*]] = invoke i32 @_ZN5test73fooEv()
+ // CHECK: store i32 [[INIT]], i32* @_ZZN5test74testEvE1x, align 4
+ // CHECK-NEXT: call void @__cxa_guard_release(i32* @_ZGVZN5test74testEvE1x)
+ // CHECK-NEXT: br label
+ // -> end
+ // end:
+ // CHECK: ret void
+ static int x = foo();
+
+ // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ // CHECK-NEXT: cleanup
+ // CHECK: call void @__cxa_guard_abort(i32* @_ZGVZN5test74testEvE1x)
+ // CHECK: resume { i8*, i32 }
+ }
+}
+
+namespace test8 {
+ struct A {
+ A();
+ ~A();
+ };
+
+ // Static and guard tested at top of file
+
+ // CHECK: define void @_ZN5test84testEv()
+ void test() {
+ // CHECK: [[T0:%.*]] = load i32* @_ZGVZN5test84testEvE1x
+ // CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], 1
+ // CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0
+ // CHECK-NEXT: br i1 [[T2]]
+ // -> fallthrough, end
+ // CHECK: [[T3:%.*]] = call i32 @__cxa_guard_acquire(i32* @_ZGVZN5test84testEvE1x)
+ // CHECK-NEXT: [[T4:%.*]] = icmp ne i32 [[T3]], 0
+ // CHECK-NEXT: br i1 [[T4]]
+ // -> fallthrough, end
+ // CHECK: [[INIT:%.*]] = invoke [[TEST8A]]* @_ZN5test81AC1Ev([[TEST8A]]* @_ZZN5test84testEvE1x)
+
+ // FIXME: Here we register a global destructor that
+ // unconditionally calls the destructor. That's what we've always
+ // done for -fno-use-cxa-atexit here, but that's really not
+ // semantically correct at all.
+
+ // CHECK: call void @__cxa_guard_release(i32* @_ZGVZN5test84testEvE1x)
+ // CHECK-NEXT: br label
+ // -> end
+ // end:
+ // CHECK: ret void
+ static A x;
+
+ // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ // CHECK-NEXT: cleanup
+ // CHECK: call void @__cxa_guard_abort(i32* @_ZGVZN5test84testEvE1x)
+ // CHECK: resume { i8*, i32 }
+ }
+}
+
+ // CHECK: define linkonce_odr [[C:%.*]]* @_ZTv0_n12_N5test21CD1Ev(
+ // CHECK: call [[C]]* @_ZN5test21CD1Ev(
+ // CHECK: ret [[C]]* undef
+
+ // CHECK: define linkonce_odr void @_ZTv0_n12_N5test21CD0Ev(
+ // CHECK: call void @_ZN5test21CD0Ev(
+ // CHECK: ret void
+
+// CH_ECK: @_GLOBAL__D_a()
+// CH_ECK: call %class.bar* @_ZN3barD1Ev(%class.bar* @baz)
generated by cgit v1.2.3 (git 2.46.2) at 2024-11-10 08:28:10 +0000