File: member-init-anon-union.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (65 lines) | stat: -rw-r--r-- 1,136 bytes parent folder | download | duplicates (34)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
// RUN: %clang_cc1 %s -std=c++11 -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s

// PR10531.

int make_a();

static union {
  int a = make_a();
  char *b;
};

int f() { return a; }

// CHECK-LABEL: define internal void @__cxx_global_var_init
// CHECK-NOT: }
// CHECK: call {{.*}}@"[[CONSTRUCT_GLOBAL:.*]]C1Ev"


int g() {
  union {
    int a;
    int b = 81;
  };
  // CHECK-LABEL: define {{.*}}_Z1gv
  // CHECK-NOT: }
  // CHECK: call {{.*}}@"[[CONSTRUCT_LOCAL:.*]]C1Ev"
  return b;
}

struct A {
  A();
};
union B {
  int k;
  struct {
    A x;
    int y = 123;
  };
  B() {}
  B(int n) : k(n) {}
};

B b1;
B b2(0);

// CHECK: define {{.*}}@"[[CONSTRUCT_GLOBAL]]C2Ev"
// CHECK-NOT: }
// CHECK: call {{.*}}@_Z6make_a

// CHECK: define {{.*}}@"[[CONSTRUCT_LOCAL]]C2Ev"
// CHECK-NOT: }
// CHECK: store i32 81

// CHECK-LABEL: define {{.*}} @_ZN1BC2Ev(
// CHECK: call void @_ZN1AC1Ev(
// CHECK: store i32 123,
// CHECK: }

// CHECK-LABEL: define {{.*}} @_ZN1BC2Ei(
// CHECK-NOT: call void @_ZN1AC1Ev(
// CHECK-NOT: store i32 123,
// CHECK: store i32 %
// CHECK-NOT: call void @_ZN1AC1Ev(
// CHECK-NOT: store i32 123,
// CHECK: }