forked from OSchip/llvm-project
186 lines
3.8 KiB
C++
186 lines
3.8 KiB
C++
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin10 | FileCheck %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin10 -O3 | FileCheck --check-prefix=CHECK-O3 %s
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struct A { int a; int b; };
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struct B { int b; };
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struct C : B, A { };
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// Zero init.
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namespace ZeroInit {
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// CHECK: @_ZN8ZeroInit1aE = global i64 -1
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int A::* a;
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// CHECK: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1]
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int A::* aa[2];
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// CHECK: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]]
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int A::* aaa[2][2];
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// CHECK: @_ZN8ZeroInit1bE = global i64 -1,
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int A::* b = 0;
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// CHECK: @_ZN8ZeroInit2saE = global %struct.anon { i64 -1 }
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struct {
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int A::*a;
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} sa;
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// CHECK: @_ZN8ZeroInit3ssaE =
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// CHECK: [2 x i64] [i64 -1, i64 -1]
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struct {
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int A::*aa[2];
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} ssa[2];
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// CHECK: @_ZN8ZeroInit2ssE = global %1 { %struct.anon { i64 -1 } }
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struct {
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struct {
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int A::*pa;
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} s;
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} ss;
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struct A {
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int A::*a;
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int b;
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};
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struct B {
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A a[10];
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char c;
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int B::*b;
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};
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struct C : A, B { int j; };
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// CHECK: @_ZN8ZeroInit1cE = global %"struct.ZeroInit::C" { [16 x i8] c"\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00", [176 x i8] c"\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF", i32 0, [4 x i8] zeroinitializer }
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C c;
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}
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// PR5674
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namespace PR5674 {
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// CHECK: @_ZN6PR56742pbE = global i64 4
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int A::*pb = &A::b;
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}
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// Casts.
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namespace Casts {
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int A::*pa;
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int C::*pc;
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void f() {
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// CHECK: store i64 -1, i64* @_ZN5Casts2paE
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pa = 0;
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// CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = add nsw i64 {{.*}}, 4
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// CHECK: store i64 [[ADJ]], i64* @_ZN5Casts2pcE
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pc = pa;
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// CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = sub nsw i64 {{.*}}, 4
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// CHECK: store i64 [[ADJ]], i64* @_ZN5Casts2paE
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pa = static_cast<int A::*>(pc);
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}
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}
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// Comparisons
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namespace Comparisons {
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void f() {
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int A::*a;
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// CHECK: icmp ne i64 {{.*}}, -1
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if (a) { }
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// CHECK: icmp ne i64 {{.*}}, -1
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if (a != 0) { }
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// CHECK: icmp ne i64 -1, {{.*}}
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if (0 != a) { }
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// CHECK: icmp eq i64 {{.*}}, -1
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if (a == 0) { }
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// CHECK: icmp eq i64 -1, {{.*}}
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if (0 == a) { }
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}
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}
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namespace ValueInit {
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struct A {
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int A::*a;
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char c;
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A();
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};
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// CHECK: define void @_ZN9ValueInit1AC2Ev
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// CHECK: store i64 -1, i64*
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// CHECK: ret void
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A::A() : a() {}
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}
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namespace PR7139 {
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struct pair {
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int first;
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int second;
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};
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typedef int pair::*ptr_to_member_type;
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struct ptr_to_member_struct {
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ptr_to_member_type data;
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int i;
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};
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struct A {
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ptr_to_member_struct a;
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A() : a() {}
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};
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// CHECK-O3: define zeroext i1 @_ZN6PR71395checkEv() nounwind readnone
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bool check() {
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// CHECK-O3: ret i1 true
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return A().a.data == 0;
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}
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// CHECK-O3: define zeroext i1 @_ZN6PR71396check2Ev() nounwind readnone
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bool check2() {
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// CHECK-O3: ret i1 true
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return ptr_to_member_type() == 0;
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}
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}
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namespace VirtualBases {
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struct A {
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char c;
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int A::*i;
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};
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// FIXME: A::i should be initialized to -1 here.
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struct B : virtual A { };
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B b;
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// FIXME: A::i should be initialized to -1 here.
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struct C : virtual A { int A::*i; };
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C c;
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// FIXME: C::A::i should be initialized to -1 here.
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struct D : C { int A::*i; };
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D d;
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}
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namespace Test1 {
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// Don't crash when A contains a bit-field.
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struct A {
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int A::* a;
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int b : 10;
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};
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A a;
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}
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