1 // RUN: %clang_cc1 %s -emit-llvm -o %t.ll -triple=x86_64-apple-darwin10
2 // RUN: FileCheck %s < %t.ll
3 // RUN: FileCheck -check-prefix=CHECK-GLOBAL %s < %t.ll
4 // RUN: %clang_cc1 %s -emit-llvm -o %t-opt.ll -triple=x86_64-apple-darwin10 -O3
5 // RUN: FileCheck --check-prefix=CHECK-O3 %s < %t-opt.ll
7 struct A { int a; int b; };
13 // CHECK-GLOBAL: @_ZN8ZeroInit1aE = global i64 -1
16 // CHECK-GLOBAL: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1]
19 // CHECK-GLOBAL: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]]
22 // CHECK-GLOBAL: @_ZN8ZeroInit1bE = global i64 -1,
25 // CHECK-GLOBAL: @_ZN8ZeroInit2saE = internal global %struct.anon { i64 -1 }
29 void test_sa() { (void) sa; } // force emission
31 // CHECK-GLOBAL: @_ZN8ZeroInit3ssaE = internal
32 // CHECK-GLOBAL: [2 x i64] [i64 -1, i64 -1]
36 void test_ssa() { (void) ssa; }
38 // CHECK-GLOBAL: @_ZN8ZeroInit2ssE = internal global %struct.anon.1 { %struct.anon.2 { i64 -1 } }
44 void test_ss() { (void) ss; }
57 struct C : A, B { int j; };
58 // CHECK-GLOBAL: @_ZN8ZeroInit1cE = global {{%.*}} { %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::B" { [10 x %"struct.ZeroInit::A"] [%"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }], i8 0, i64 -1 }, i32 0 }, align 8
64 // CHECK-GLOBAL: @_ZN6PR56742pbE = global i64 4
75 // CHECK: store i64 -1, i64* @_ZN5Casts2paE
78 // CHECK-NEXT: [[TMP:%.*]] = load i64* @_ZN5Casts2paE, align 8
79 // CHECK-NEXT: [[ADJ:%.*]] = add nsw i64 [[TMP]], 4
80 // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1
81 // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]]
82 // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2pcE
85 // CHECK-NEXT: [[TMP:%.*]] = load i64* @_ZN5Casts2pcE, align 8
86 // CHECK-NEXT: [[ADJ:%.*]] = sub nsw i64 [[TMP]], 4
87 // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1
88 // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]]
89 // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2paE
90 pa = static_cast<int A::*>(pc);
96 namespace Comparisons {
100 // CHECK: icmp ne i64 {{.*}}, -1
103 // CHECK: icmp ne i64 {{.*}}, -1
106 // CHECK: icmp ne i64 -1, {{.*}}
109 // CHECK: icmp eq i64 {{.*}}, -1
112 // CHECK: icmp eq i64 -1, {{.*}}
117 namespace ValueInit {
127 // CHECK-LABEL: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr
128 // CHECK: store i64 -1, i64*
141 typedef int pair::*ptr_to_member_type;
143 struct ptr_to_member_struct {
144 ptr_to_member_type data;
149 ptr_to_member_struct a;
154 // CHECK-O3: define zeroext i1 @_ZN6PR71395checkEv() [[NUW:#[0-9]+]]
156 // CHECK-O3: ret i1 true
157 return A().a.data == 0;
160 // CHECK-O3: define zeroext i1 @_ZN6PR71396check2Ev() [[NUW]]
162 // CHECK-O3: ret i1 true
163 return ptr_to_member_type() == 0;
168 namespace VirtualBases {
175 // CHECK-GLOBAL: @_ZN12VirtualBases1bE = global %"struct.VirtualBases::B" { i32 (...)** null, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
176 struct B : virtual A { };
179 // CHECK-GLOBAL: @_ZN12VirtualBases1cE = global %"struct.VirtualBases::C" { i32 (...)** null, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
180 struct C : virtual A { int A::*i; };
183 // CHECK-GLOBAL: @_ZN12VirtualBases1dE = global %"struct.VirtualBases::D" { %"struct.VirtualBases::C.base" { i32 (...)** null, i64 -1 }, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
184 struct D : C { int A::*i; };
191 // Don't crash when A contains a bit-field.
200 namespace BoolPtrToMember {
205 // CHECK-LABEL: define i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b
206 bool &f(X &x, bool X::*member) {
207 // CHECK: {{bitcast.* to i8\*}}
208 // CHECK-NEXT: getelementptr inbounds i8*
209 // CHECK-NEXT: ret i8*
217 void f(S* p, double S::*pm) {
225 struct A { int A_i; };
226 struct B : virtual A { int A::*B_p; };
227 struct C : virtual B { int *C_p; };
228 struct D : C { int *D_p; };
230 // CHECK-GLOBAL: @_ZN5test41dE = global %"struct.test4::D" { %"struct.test4::C.base" zeroinitializer, i32* null, %"struct.test4::B.base" { i32 (...)** null, i64 -1 }, %"struct.test4::A" zeroinitializer }, align 8
240 // CHECK-GLOBAL: @_ZN7PR114871xE = global %"union.PR11487::U" { i64 -1, [8 x i8] zeroinitializer }, align 8
245 struct X { int x; X(const X&); };
251 X g() { return f().*&A::x; }
252 // CHECK-LABEL: define void @_ZN7PR130971gEv
253 // CHECK: call void @_ZN7PR130971fEv
255 // CHECK: call void @_ZN7PR130971XC1ERKS0_
258 // CHECK-O3: attributes [[NUW]] = { nounwind readnone{{.*}} }