File: member-init-anon-union.cpp

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
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: }