File: eh-aggregated-inits.cpp

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (46 lines) | stat: -rw-r--r-- 1,007 bytes parent folder | download | duplicates (37) 
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
 
// Check that initialization of the only one memcpy-able struct member will not
// be performed twice after successful non-trivial initializtion of the second
// member.
//
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -O0 -fno-elide-constructors -emit-llvm %s -o - | FileCheck %s

int globId = 0;

struct ImplicitCopy {
  int id;

  ImplicitCopy() { id = 10; }
  ~ImplicitCopy() { id = 20; }
};

struct ExplicitCopy {
  int id;

  ExplicitCopy() { id = 15; }
  ExplicitCopy(const ExplicitCopy &x) { id = 25; }
  ~ExplicitCopy() { id = 35; }
};

struct Container {
  ImplicitCopy o1; // memcpy-able member.
  ExplicitCopy o2; // non-trivial initialization.

  Container() { globId = 1000; }
  ~Container() { globId = 2000; }
};

int main() {
  try {
    Container c1;
    // CHECK-DAG: call void @llvm.memcpy
    // CHECK-DAG: declare void @llvm.memcpy
    // CHECK-NOT: @llvm.memcpy
    Container c2(c1);

    return 2;
  }
  catch (...) {
    return 1;
  }
  return 0;
}