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6e938effaa
Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964
330 lines
8.2 KiB
C++
330 lines
8.2 KiB
C++
// RUN: %clang_cc1 -std=c++98 %s -triple x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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struct A {
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virtual ~A();
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};
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struct B : A { };
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struct C {
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int i;
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B b;
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};
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// CHECK: _Z15test_value_initv
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void test_value_init() {
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// This value initialization requires zero initialization of the 'B'
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// subobject followed by a call to its constructor.
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// PR5800
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// CHECK: store i32 17
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN1BC1Ev
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C c = { 17 } ;
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// CHECK: call void @_ZN1CD1Ev
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}
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enum enum_type { negative_number = -1, magic_number = 42 };
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class enum_holder
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{
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enum_type m_enum;
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public:
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enum_holder() : m_enum(magic_number) { }
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};
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struct enum_holder_and_int
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{
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enum_holder e;
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int i;
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};
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// CHECK: _Z24test_enum_holder_and_intv()
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void test_enum_holder_and_int() {
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// CHECK: alloca
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @llvm.memset
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// CHECK-NEXT: call void @_ZN19enum_holder_and_intC1Ev
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enum_holder_and_int();
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// CHECK-NEXT: ret void
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}
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// PR7834: don't crash.
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namespace test1 {
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struct A {
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int A::*f;
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A();
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A(const A&);
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A &operator=(const A &);
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};
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struct B {
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A base;
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};
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void foo() {
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B();
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}
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}
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namespace ptrmem {
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struct S {
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int mem1;
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int S::*mem2;
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};
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// CHECK-LABEL: define i32 @_ZN6ptrmem4testEPNS_1SE
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int test(S *s) {
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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// CHECK: getelementptr
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// CHECK: ret
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return s->*S().mem2;
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}
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}
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namespace PR9801 {
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struct Test {
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Test() : i(10) {}
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Test(int i) : i(i) {}
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int i;
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private:
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int j;
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};
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struct Test2 {
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Test t;
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};
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struct Test3 : public Test { };
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// CHECK-LABEL: define void @_ZN6PR98011fEv
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void f() {
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN6PR98014TestC1Ei
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN6PR98014TestC1Ev
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Test partial[3] = { 1 };
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN6PR98014TestC1Ev
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// CHECK-NOT: call void @_ZN6PR98014TestC1Ev
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Test empty[3] = {};
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN6PR98015Test2C1Ev
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// CHECK-NOT: call void @_ZN6PR98015Test2C1Ev
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Test2 empty2[3] = {};
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK: call void @_ZN6PR98015Test3C1Ev
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// CHECK-NOT: call void @llvm.memset.p0i8.i64
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// CHECK-NOT: call void @_ZN6PR98015Test3C1Ev
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Test3 empty3[3] = {};
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}
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}
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namespace zeroinit {
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struct S { int i; };
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// CHECK-LABEL: define i32 @_ZN8zeroinit4testEv()
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int test() {
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK: ret i32 0
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return S().i;
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}
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struct X0 {
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X0() { }
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int x;
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};
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struct X1 : X0 {
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int x1;
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void f();
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};
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// CHECK-LABEL: define void @_ZN8zeroinit9testX0_X1Ev
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void testX0_X1() {
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK-NEXT: call void @_ZN8zeroinit2X1C1Ev
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// CHECK-NEXT: call void @_ZN8zeroinit2X11fEv
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X1().f();
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}
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template<typename>
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struct X2 : X0 {
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int x2;
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void f();
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};
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template<typename>
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struct X3 : X2<int> {
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X3() : X2<int>() { }
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int i;
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};
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// CHECK-LABEL: define void @_ZN8zeroinit9testX0_X3Ev
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void testX0_X3() {
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// CHECK-NOT: call void @llvm.memset
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// CHECK: call void @_ZN8zeroinit2X3IiEC1Ev
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// CHECK: call void @_ZN8zeroinit2X2IiE1fEv
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// CHECK-NEXT: ret void
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X3<int>().f();
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}
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// More checks at EOF
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}
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namespace PR8726 {
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class C;
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struct S {
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const C &c1;
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int i;
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const C &c2;
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};
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void f(const C& c) {
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S s = {c, 42, c};
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}
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}
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// rdar://problem/9355931
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namespace test6 {
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struct A { A(); A(int); };
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void test() {
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A arr[10][20] = { 5 };
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};
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// CHECK-LABEL: define void @_ZN5test64testEv()
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// CHECK: [[ARR:%.*]] = alloca [10 x [20 x [[A:%.*]]]],
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// CHECK-NEXT: [[INNER:%.*]] = getelementptr inbounds [10 x [20 x [[A]]]], [10 x [20 x [[A]]]]* [[ARR]], i64 0, i64 0
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [20 x [[A]]], [20 x [[A]]]* [[INNER]], i64 0, i64 0
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// CHECK-NEXT: call void @_ZN5test61AC1Ei([[A]]* [[T0]], i32 5)
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// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [[A]], [[A]]* [[T0]], i64 1
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// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[T0]], i64 20
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// CHECK-NEXT: br label
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// CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
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// CHECK-NEXT: call void @_ZN5test61AC1Ev([[A]]* [[CUR]])
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// CHECK-NEXT: [[NEXT]] = getelementptr inbounds [[A]], [[A]]* [[CUR]], i64 1
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// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]]
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// CHECK-NEXT: br i1
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// CHECK: [[BEGIN:%.*]] = getelementptr inbounds [20 x [[A]]], [20 x [[A]]]* [[INNER]], i64 1
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// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [20 x [[A]]], [20 x [[A]]]* [[INNER]], i64 10
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// CHECK-NEXT: br label
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// CHECK: [[CUR:%.*]] = phi [20 x [[A]]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
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// Inner loop.
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// CHECK-NEXT: [[IBEGIN:%.*]] = getelementptr inbounds [20 x [[A]]], [20 x [[A]]]* [[CUR]], i32 0, i32 0
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// CHECK-NEXT: [[IEND:%.*]] = getelementptr inbounds [[A]], [[A]]* [[IBEGIN]], i64 20
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// CHECK-NEXT: br label
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// CHECK: [[ICUR:%.*]] = phi [[A]]* [ [[IBEGIN]], {{%.*}} ], [ [[INEXT:%.*]], {{%.*}} ]
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// CHECK-NEXT: call void @_ZN5test61AC1Ev([[A]]* [[ICUR]])
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// CHECK-NEXT: [[INEXT:%.*]] = getelementptr inbounds [[A]], [[A]]* [[ICUR]], i64 1
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// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[INEXT]], [[IEND]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[NEXT]] = getelementptr inbounds [20 x [[A]]], [20 x [[A]]]* [[CUR]], i64 1
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// CHECK-NEXT: [[T0:%.*]] = icmp eq [20 x [[A]]]* [[NEXT]], [[END]]
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// CHECK-NEXT: br i1 [[T0]]
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// CHECK: ret void
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}
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namespace PR11124 {
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// Make sure C::C doesn't overwrite parts of A while it is zero-initializing B
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struct A { int a; A(); A(int); };
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struct B : virtual A { int b; };
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struct C : B { C(); };
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C::C() : A(3), B() {}
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// CHECK-LABEL: define void @_ZN7PR111241CC1Ev
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// CHECK: call void @llvm.memset.p0i8.i64(i8* align 8 {{.*}}, i8 0, i64 12, i1 false)
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// CHECK-NEXT: call void @_ZN7PR111241BC2Ev
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// Make sure C::C doesn't overwrite parts of A while it is zero-initializing B
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struct B2 : virtual A { int B::*b; };
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struct C2 : B2 { C2(); };
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C2::C2() : A(3), B2() {}
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// CHECK-LABEL: define void @_ZN7PR111242C2C1Ev
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %{{.*}}, i8* align 8 {{.*}}, i64 16, i1 false)
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// CHECK-NEXT: call void @_ZN7PR111242B2C2Ev
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}
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// Ensure we produce an i1 here, and don't assert.
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// CHECK-LABEL: define void @_Z9r170806_bv(
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// CHECK: call void @_Z9r170806_ab(i1 zeroext false)
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void r170806_a(bool b = bool());
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void r170806_b() { r170806_a(); }
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namespace PR20256 {
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struct data { int i; };
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template<typename T = int>
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data g() {
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data d; // not value-init
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return d;
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}
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template data g();
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// CHECK-LABEL: define {{.*}} @_ZN7PR202561gIiEENS_4dataEv(
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// CHECK-NOT: store
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// CHECK-NOT: memset
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// CHECK: }
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template<typename ...T>
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data h(T ...t) {
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data d(t...); // value-init
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return d;
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}
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template data h();
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// CHECK-LABEL: define {{.*}} @_ZN7PR202561hIJEEENS_4dataEDpT_(
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// CHECK: call void @llvm.memset
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// CHECK: }
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template<typename T = int>
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data j() {
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data d = {}; // value-init
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return d;
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}
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template data j();
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// CHECK-LABEL: define {{.*}} @_ZN7PR202561jIiEENS_4dataEv(
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// CHECK: call void @llvm.memset
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// CHECK: }
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data f() {
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data d; // not value-init
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return d;
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}
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// CHECK-LABEL: define {{.*}} @_ZN7PR202561fEv(
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// CHECK-NOT: store
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// CHECK-NOT: memset
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// CHECK: }
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data i() {
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data d = {}; // value-init
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return d;
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}
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// CHECK-LABEL: define {{.*}} @_ZN7PR202561iEv(
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// CHECK: call void @llvm.memset
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// CHECK: }
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}
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// CHECK-LABEL: define {{.*}}@_Z20explicitly_defaultedv
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int explicitly_defaulted() {
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struct A { A() = default; int n; };
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// CHECK: call void @llvm.memset
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A a = A();
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return a.n;
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} // CHECK-LABEL: }
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// CHECK-LABEL: define linkonce_odr void @_ZN8zeroinit2X3IiEC2Ev(%"struct.zeroinit::X3"* %this) unnamed_addr
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// CHECK: call void @llvm.memset.p0i8.i64
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// CHECK-NEXT: call void @_ZN8zeroinit2X2IiEC2Ev
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// CHECK-NEXT: ret void
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