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// 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 { i32, [4 x i8] } { i32 0, [4 x i8] undef }
union { int i; double f; } u2 = { };
// CHECK: @u3 = global %union.anon.1 zeroinitializer
union { double f; int i; } u3 = { };
// CHECK: @b = global [2 x i32] [i32 0, i32 22]
int b[2] = {
[1] = 22
};
// PR6955
struct ds {
struct {
struct {
short a;
};
short b;
struct {
short c;
};
};
};
// Traditional C anonymous member init
struct ds ds0 = { { { .a = 0 } } };
// C1X lookup-based anonymous member init cases
struct ds ds1 = { { .a = 1 } };
struct ds ds2 = { { .b = 1 } };
struct ds ds3 = { .a = 0 };
// CHECK: @ds4 = global %struct.ds { %struct.anon.3 { %struct.anon zeroinitializer, i16 0, %struct.anon.2 { i16 1 } } }
struct ds ds4 = { .c = 1 };
struct ds ds5 = { { { .a = 0 } }, .b = 1 };
struct ds ds6 = { { .a = 0, .b = 1 } };
// CHECK: @ds7 = global %struct.ds { %struct.anon.3 { %struct.anon { i16 2 }, i16 3, %struct.anon.2 zeroinitializer } }
struct ds ds7 = {
{ {
.a = 1
} },
.a = 2,
.b = 3
};
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.4* %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 },
};
}
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