67 lines · cpp
1// RUN: %clang_cc1 -std=c++98 -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s2// RUN: %clang_cc1 -std=c++11 -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s3 4struct A { int x, y[3]; };5struct B { A a; };6 7// CHECK: @b ={{.*}} global %{{[^ ]*}} { %{{[^ ]*}} { i32 1, [3 x i32] [i32 2, i32 5, i32 4] } }8B b = {(A){1, 2, 3, 4}, .a.y[1] = 5};9 10union U {11 int n;12 float f;13};14struct C {15 int x;16 U u[3];17};18struct D {19 C c;20};21 22// CHECK: @d1 = {{.*}} { i32 1, [3 x %[[U:.*]]] [%[[U]] { i32 2 }, %[[U]] { i32 5 }, %[[U]] { i32 4 }] }23D d1 = {(C){1, {{.n=2}, {.f=3}, {.n=4}}}, .c.u[1].n = 5};24 25// CHECK: @d2 = {{.*}} { i32 1, { %[[U]], float, %[[U]] } { %[[U]] { i32 2 }, float 5.{{0*}}e+00, %[[U]] { i32 4 } } }26D d2 = {(C){1, 2, 3, 4}, .c.u[1].f = 5};27 28struct Bitfield {29 int a : 3;30 int b : 4;31 int c : 5;32};33struct WithBitfield {34 int n;35 Bitfield b;36};37// CHECK: @bitfield = {{.*}} { i32 1, { i8, i8, [2 x i8] } { i8 42, i8 2, [2 x i8] undef } }38WithBitfield bitfield = {1, (Bitfield){2, 3, 4}, .b.b = 5};39 40struct String {41 const char buffer[12];42};43struct WithString {44 String str;45};46// CHECK: @string = {{.*}} [12 x i8] c"Hello World\00" } }47WithString string = {(String){"hello world"}, .str.buffer[0] = 'H', .str.buffer[6] = 'W'};48 49struct LargeArray {50 int arr[4096];51};52struct WithLargeArray {53 LargeArray arr;54};55// CHECK: @large ={{.*}} global { { <{ [11 x i32], [4085 x i32] }> } } { { <{ [11 x i32], [4085 x i32] }> } { <{ [11 x i32], [4085 x i32] }> <{ [11 x i32] [i32 1, i32 2, i32 3, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 10], [4085 x i32] zeroinitializer }> } }56WithLargeArray large = {(LargeArray){1, 2, 3}, .arr.arr[10] = 10};57 58union OverwritePaddingWithBitfield {59 struct Padding { unsigned : 8; char c; } padding;60 char bitfield : 3;61};62struct WithOverwritePaddingWithBitfield {63 OverwritePaddingWithBitfield a;64};65// CHECK: @overwrite_padding ={{.*}} global { { i8, i8 } } { { i8, i8 } { i8 3, i8 1 } }66WithOverwritePaddingWithBitfield overwrite_padding = {(OverwritePaddingWithBitfield){1}, .a.bitfield = 3};67