File: p1.cpp

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (26 lines) | stat: -rw-r--r-- 978 bytes parent folder | download | duplicates (19) 
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
 
// RUN: %clang_cc1 -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu -o - %s | FileCheck %s
// RUN: %clang_cc1 -std=c++17 -emit-llvm -triple x86_64-unknown-linux-gnu -o - %s | FileCheck %s
// RUN: %clang_cc1 -std=c++14 -emit-llvm -triple x86_64-unknown-linux-gnu -o - %s | FileCheck %s
// RUN: %clang_cc1 -std=c++11 -emit-llvm -triple x86_64-unknown-linux-gnu -o - %s | FileCheck %s

// - volatile object in return statement don't match the rule for using move
//   operation instead of copy operation. Thus should call the copy constructor
//   A(const volatile A &).
//
// - volatile object in return statement also don't match the rule for copy
//   elision. Thus the copy constructor A(const volatile A &) cannot be elided.
namespace test_volatile {
class A {
public:
  A() {}
  ~A() {}
  A(const volatile A &);
  A(volatile A &&);
};

A test() {
  volatile A a_copy;
  // CHECK: call void @_ZN13test_volatile1AC1ERVKS0_
  return a_copy;
}
} // namespace test_volatile