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
43
44
|
// RUN: %clang_cc1 -Werror -triple i386-linux -emit-llvm -o - %s | FileCheck %s
// Test that different order of declarations is acceptable and that
// implementing different redeclarations is acceptable.
// rdar://problem/34949329
typedef union {
int i;
float f;
} TU __attribute__((transparent_union));
// CHECK-LABEL: define{{.*}} void @f0(i32 %tu.coerce)
// CHECK: %tu = alloca %union.TU, align 4
// CHECK: %coerce.dive = getelementptr inbounds %union.TU, %union.TU* %tu, i32 0, i32 0
// CHECK: store i32 %tu.coerce, i32* %coerce.dive, align 4
void f0(TU tu) {}
void f0(int i);
// CHECK-LABEL: define{{.*}} void @f1(i32 noundef %tu.coerce)
// CHECK: %tu = alloca %union.TU, align 4
// CHECK: %coerce.dive = getelementptr inbounds %union.TU, %union.TU* %tu, i32 0, i32 0
// CHECK: store i32 %tu.coerce, i32* %coerce.dive, align 4
void f1(int i);
void f1(TU tu) {}
// CHECK-LABEL: define{{.*}} void @f2(i32 noundef %i)
// CHECK: %i.addr = alloca i32, align 4
// CHECK: store i32 %i, i32* %i.addr, align 4
void f2(TU tu);
void f2(int i) {}
// CHECK-LABEL: define{{.*}} void @f3(i32 noundef %i)
// CHECK: %i.addr = alloca i32, align 4
// CHECK: store i32 %i, i32* %i.addr, align 4
void f3(int i) {}
void f3(TU tu);
// Also test functions with parameters specified K&R style.
// CHECK-LABEL: define{{.*}} void @knrStyle(i32 noundef %tu.coerce)
// CHECK: %tu = alloca %union.TU, align 4
// CHECK: %coerce.dive = getelementptr inbounds %union.TU, %union.TU* %tu, i32 0, i32 0
// CHECK: store i32 %tu.coerce, i32* %coerce.dive, align 4
void knrStyle(int i);
void knrStyle(tu) TU tu; {}
|
