86 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -triple armv7-none-eabi -emit-llvm -o - %s | FileCheck %s2 3struct X {4 X();5 X(const X&);6 X(const char*);7 ~X();8};9 10struct Y { 11 int i;12 X x;13};14 15// CHECK: @.compoundliteral = internal global [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5], align 416// CHECK: @q ={{.*}} global ptr @.compoundliteral, align 417 18// CHECK-LABEL: define{{.*}} i32 @_Z1fv()19int f() {20 // CHECK: [[LVALUE:%[a-z0-9.]+]] = alloca21 // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}}, ptr [[LVALUE]], i32 0, i32 022 // CHECK-NEXT: store i32 17, ptr [[I]]23 // CHECK-NEXT: [[X:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 424 // CHECK-NEXT: call noundef ptr @_ZN1XC1EPKc({{.*}}[[X]]25 // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 026 // CHECK-NEXT: [[RESULT:%[a-z0-9]+]] = load i32, ptr27 // CHECK-NEXT: call noundef ptr @_ZN1YD1Ev28 // CHECK-NEXT: ret i32 [[RESULT]]29 return ((Y){17, "seventeen"}).i;30}31 32// CHECK-LABEL: define{{.*}} i32 @_Z1gv()33int g() {34 // CHECK: store ptr %{{[a-z0-9.]+}}, ptr [[V:%[a-z0-9.]+]]35 const int (&v)[2] = (int [2]) {1,2};36 37 // CHECK: [[A:%[a-z0-9.]+]] = load ptr, ptr [[V]]38 // CHECK-NEXT: [[A0ADDR:%[a-z0-9.]+]] = getelementptr inbounds [2 x i32], ptr [[A]], i32 0, {{.*}} 039 // CHECK-NEXT: [[A0:%[a-z0-9.]+]] = load i32, ptr [[A0ADDR]]40 // CHECK-NEXT: ret i32 [[A0]]41 return v[0];42}43 44// GCC's compound-literals-in-C++ extension lifetime-extends a compound literal45// (or a C++11 list-initialized temporary!) if:46// - it is at global scope47// - it has array type48// - it has a constant initializer49 50struct Z { int i[3]; };51int *p = (Z){ {1, 2, 3} }.i;52// CHECK: define {{.*}}__cxx_global_var_init()53// CHECK: alloca %struct.Z54// CHECK: store ptr %{{.*}}, ptr @p55 56int *q = (int [5]){1, 2, 3, 4, 5};57// (constant initialization, checked above)58 59extern int n;60int *r = (int [5]){1, 2, 3, 4, 5} + n;61// CHECK-LABEL: define {{.*}}__cxx_global_var_init.1()62// CHECK: %[[PTR:.*]] = getelementptr inbounds i32, ptr @.compoundliteral.2, i32 %63// CHECK: store ptr %[[PTR]], ptr @r64 65int *PR21912_1 = (int []){} + n;66// CHECK-LABEL: define {{.*}}__cxx_global_var_init.3()67// CHECK: %[[PTR:.*]] = getelementptr inbounds i32, ptr @.compoundliteral.4, i32 %68// CHECK: store ptr %[[PTR]], ptr @PR21912_169 70union PR21912Ty {71 long long l;72 double d;73};74union PR21912Ty *PR21912_2 = (union PR21912Ty[]){{.d = 2.0}, {.l = 3}} + n;75// CHECK-LABEL: define {{.*}}__cxx_global_var_init.5()76// CHECK: %[[PTR:.*]] = getelementptr inbounds %union.PR21912Ty, ptr @.compoundliteral.6, i32 %77// CHECK: store ptr %[[PTR]], ptr @PR21912_2, align 478 79// This compound literal should have local scope.80int computed_with_lambda = [] {81 int *array = (int[]) { 1, 3, 5, 7 };82 return array[0];83}();84// CHECK-LABEL: define internal noundef i32 @{{.*}}clEv85// CHECK: alloca [4 x i32]86