File: empty-nontrivially-copyable.cpp

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (26 lines) | stat: -rw-r--r-- 822 bytes parent folder | download | duplicates (15)
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 -triple armv7-apple-ios -x c++ -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple arm64-apple-ios -x c++ -emit-llvm -o - %s | FileCheck %s

// According to the Itanium ABI (3.1.1), types with non-trivial copy
// constructors passed by value should be passed indirectly, with the caller
// creating a temporary.

struct Empty;

struct Empty {
  Empty(const Empty &e);
  bool check();
};

bool foo(Empty e) {
// CHECK: @_Z3foo5Empty(%struct.Empty* %e)
// CHECK: call {{.*}} @_ZN5Empty5checkEv(%struct.Empty* %e)
  return e.check();
}

void caller(Empty &e) {
// CHECK: @_Z6callerR5Empty(%struct.Empty* dereferenceable({{[0-9]+}}) %e)
// CHECK: call {{.*}} @_ZN5EmptyC1ERKS_(%struct.Empty* [[NEWTMP:%.*]], %struct.Empty*
// CHECK: call {{.*}} @_Z3foo5Empty(%struct.Empty* [[NEWTMP]])
  foo(e);
}