1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -triple i386-linux-gnu -emit-llvm -o - %s | FileCheck %s
typedef struct {} empty;
// CHECK-LABEL: @_Z17empty_record_testiz(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RESULT_PTR:%.*]] = alloca ptr, align 4
// CHECK-NEXT: [[Z_ADDR:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[LIST:%.*]] = alloca ptr, align 4
// CHECK-NEXT: store ptr [[AGG_RESULT:%.*]], ptr [[RESULT_PTR]], align 4
// CHECK-NEXT: store i32 [[Z:%.*]], ptr [[Z_ADDR]], align 4
// CHECK-NEXT: call void @llvm.va_start.p0(ptr [[LIST]])
// CHECK-NEXT: ret void
//
empty empty_record_test(int z, ...) {
__builtin_va_list list;
__builtin_va_start(list, z);
return __builtin_va_arg(list, empty);
}
typedef struct {
struct {
int a[0];
} b;
} SortOfEmpty;
// CHECK-LABEL: @_Z18test_sort_of_emptyiz(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RESULT_PTR:%.*]] = alloca ptr, align 4
// CHECK-NEXT: [[Z_ADDR:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[LIST:%.*]] = alloca ptr, align 4
// CHECK-NEXT: store ptr [[AGG_RESULT:%.*]], ptr [[RESULT_PTR]], align 4
// CHECK-NEXT: store i32 [[Z:%.*]], ptr [[Z_ADDR]], align 4
// CHECK-NEXT: call void @llvm.va_start.p0(ptr [[LIST]])
// CHECK-NEXT: ret void
//
SortOfEmpty test_sort_of_empty(int z, ...) {
__builtin_va_list list;
__builtin_va_start(list, z);
return __builtin_va_arg(list, SortOfEmpty);
}
|
