423 lines
14 KiB
C++
423 lines
14 KiB
C++
// 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
|
|
// 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
|
|
|
|
// 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-NOT: @_GLOBAL__D_a()
|
|
// CHECK-LABEL: 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-LABEL: 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]]* {{[^,]*}} returned {{[^,]*}} %this, i32 %i) unnamed_addr
|
|
// CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
|
|
// CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
|
|
// CHECK: [[THIS1:%.*]] = load [[A]]*, [[A]]** [[THIS]]
|
|
// CHECK: {{%.*}} = call [[A]]* @_ZN5test11AC2Ei(
|
|
// CHECK: ret [[A]]* [[THIS1]]
|
|
|
|
// CHECK: define linkonce_odr [[A]]* @_ZN5test11AD1Ev([[A]]* {{[^,]*}} returned {{[^,]*}} %this) unnamed_addr
|
|
// CHECK: [[THIS:%.*]] = alloca [[A]]*, align 4
|
|
// CHECK: store [[A]]* {{.*}}, [[A]]** [[THIS]]
|
|
// CHECK: [[THIS1:%.*]] = load [[A]]*, [[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-LABEL: define{{.*}} void @_ZN5test31aEv()
|
|
// CHECK: call noalias nonnull i8* @_Znam(i32 48)
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 10
|
|
A *x = new A[10];
|
|
}
|
|
|
|
void b(int n) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test31bEi(
|
|
// CHECK: [[N:%.*]] = load i32, 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 nonnull i8* @_Znam(i32 [[SZ]])
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 [[N]]
|
|
A *x = new A[n];
|
|
}
|
|
|
|
void c() {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test31cEv()
|
|
// CHECK: call noalias nonnull i8* @_Znam(i32 808)
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 200
|
|
A (*x)[20] = new A[10][20];
|
|
}
|
|
|
|
void d(int n) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test31dEi(
|
|
// CHECK: [[N:%.*]] = load i32, 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 nonnull i8* @_Znam(i32 [[SZ]])
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 [[NE]]
|
|
A (*x)[20] = new A[n][20];
|
|
}
|
|
|
|
void e(A *x) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test31eEPNS_1AE(
|
|
// CHECK: icmp eq {{.*}}, null
|
|
// CHECK: getelementptr {{.*}}, i32 -8
|
|
// CHECK: getelementptr {{.*}}, i32 4
|
|
// CHECK: bitcast {{.*}} to i32*
|
|
// CHECK: load
|
|
// CHECK98: invoke {{.*}} @_ZN5test31AD1Ev
|
|
// CHECK11: call {{.*}} @_ZN5test31AD1Ev
|
|
// CHECK: call void @_ZdaPv
|
|
delete [] x;
|
|
}
|
|
|
|
void f(A (*x)[20]) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test31fEPA20_NS_1AE(
|
|
// CHECK: icmp eq {{.*}}, null
|
|
// CHECK: getelementptr {{.*}}, i32 -8
|
|
// CHECK: getelementptr {{.*}}, i32 4
|
|
// CHECK: bitcast {{.*}} to i32*
|
|
// CHECK: load
|
|
// CHECK98: invoke {{.*}} @_ZN5test31AD1Ev
|
|
// CHECK11: call {{.*}} @_ZN5test31AD1Ev
|
|
// CHECK: call void @_ZdaPv
|
|
delete [] x;
|
|
}
|
|
}
|
|
|
|
namespace test4 {
|
|
struct A {
|
|
int x;
|
|
void operator delete[](void *, size_t sz);
|
|
};
|
|
|
|
void a() {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test41aEv()
|
|
// CHECK: call noalias nonnull i8* @_Znam(i32 48)
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 10
|
|
A *x = new A[10];
|
|
}
|
|
|
|
void b(int n) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test41bEi(
|
|
// CHECK: [[N:%.*]] = load i32, 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 nonnull i8* @_Znam(i32 [[SZ]])
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 [[N]]
|
|
A *x = new A[n];
|
|
}
|
|
|
|
void c() {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test41cEv()
|
|
// CHECK: call noalias nonnull i8* @_Znam(i32 808)
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 200
|
|
A (*x)[20] = new A[10][20];
|
|
}
|
|
|
|
void d(int n) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test41dEi(
|
|
// CHECK: [[N:%.*]] = load i32, 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 nonnull i8* @_Znam(i32 [[SZ]])
|
|
// CHECK: store i32 4
|
|
// CHECK: store i32 [[NE]]
|
|
A (*x)[20] = new A[n][20];
|
|
}
|
|
|
|
void e(A *x) {
|
|
// CHECK-LABEL: define{{.*}} void @_ZN5test41eEPNS_1AE(
|
|
// CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i32 -8
|
|
// CHECK: getelementptr inbounds {{.*}}, i32 4
|
|
// CHECK: bitcast
|
|
// CHECK: [[T0:%.*]] = load i32, 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-LABEL: define{{.*}} void @_ZN5test41fEPA20_NS_1AE(
|
|
// CHECK: [[ALLOC:%.*]] = getelementptr inbounds {{.*}}, i32 -8
|
|
// CHECK: getelementptr inbounds {{.*}}, i32 4
|
|
// CHECK: bitcast
|
|
// CHECK: [[T0:%.*]] = load i32, 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-LABEL: 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]]*, [[A]]** [[PTR]], align 4
|
|
// CHECK-NEXT: call [[A]]* @_ZN5test51AD1Ev([[A]]* {{[^,]*}} [[TMP]])
|
|
// CHECK-NEXT: ret void
|
|
a->~A();
|
|
}
|
|
}
|
|
|
|
namespace test6 {
|
|
struct A {
|
|
virtual ~A();
|
|
};
|
|
|
|
// CHECK-LABEL: 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]]*, [[A]]** [[AVAR]], align 4
|
|
// CHECK-NEXT: [[ISNULL:%.*]] = icmp eq [[A]]* [[V]], null
|
|
// CHECK-NEXT: br i1 [[ISNULL]]
|
|
// CHECK: [[T0:%.*]] = bitcast [[A]]* [[V]] to void ([[A]]*)***
|
|
// CHECK-NEXT: [[T1:%.*]] = load void ([[A]]*)**, void ([[A]]*)*** [[T0]]
|
|
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds void ([[A]]*)*, void ([[A]]*)** [[T1]], i64 1
|
|
// CHECK-NEXT: [[T3:%.*]] = load void ([[A]]*)*, void ([[A]]*)** [[T2]]
|
|
// CHECK-NEXT: call void [[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-LABEL: define{{.*}} void @_ZN5test74testEv() {{.*}} personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
|
|
void test() {
|
|
// CHECK: [[T0:%.*]] = load atomic i8, i8* bitcast (i32* @_ZGVZN5test74testEvE1x to i8*) acquire, align 4
|
|
// CHECK-NEXT: [[T1:%.*]] = and i8 [[T0]], 1
|
|
// CHECK-NEXT: [[T2:%.*]] = icmp eq i8 [[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 }
|
|
// 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-LABEL: define{{.*}} void @_ZN5test84testEv() {{.*}} personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
|
|
void test() {
|
|
// CHECK: [[T0:%.*]] = load atomic i8, i8* bitcast (i32* @_ZGVZN5test84testEvE1x to i8*) acquire, align 4
|
|
// CHECK-NEXT: [[T1:%.*]] = and i8 [[T0]], 1
|
|
// CHECK-NEXT: [[T2:%.*]] = icmp eq i8 [[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 }
|
|
// CHECK-NEXT: cleanup
|
|
// CHECK: call void @__cxa_guard_abort(i32* @_ZGVZN5test84testEvE1x)
|
|
// CHECK: resume { i8*, i32 }
|
|
}
|
|
}
|
|
|
|
// 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];
|
|
public:
|
|
A();
|
|
~A();
|
|
};
|
|
|
|
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
|