| // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s |
| |
| struct foo { |
| void *a; |
| int b; |
| }; |
| |
| // CHECK: @u = global %union.anon zeroinitializer |
| union { int i; float f; } u = { }; |
| |
| // CHECK: @u2 = global %1 { i32 0, [4 x i8] undef } |
| union { int i; double f; } u2 = { }; |
| |
| // CHECK: @u3 = global %2 zeroinitializer |
| union { double f; int i; } u3 = { }; |
| |
| // CHECK: @b = global [2 x i32] [i32 0, i32 22] |
| int b[2] = { |
| [1] = 22 |
| }; |
| |
| void test1(int argc, char **argv) |
| { |
| // CHECK: internal global %struct.foo { i8* null, i32 1024 } |
| static struct foo foo = { |
| .b = 1024, |
| }; |
| |
| // CHECK: bitcast %union.anon* %u2 |
| // CHECK: call void @llvm.memset |
| union { int i; float f; } u2 = { }; |
| |
| // CHECK-NOT: call void @llvm.memset |
| union { int i; float f; } u3; |
| |
| // CHECK: ret void |
| } |
| |
| |
| // PR7151 |
| struct S { |
| int nkeys; |
| int *keys; |
| union { |
| void *data; |
| }; |
| }; |
| |
| void test2() { |
| struct S *btkr; |
| |
| *btkr = (struct S) { |
| .keys = 0, |
| { .data = 0 }, |
| }; |
| } |