File: reference-init.cpp

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-16
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,496,368 kB
  • sloc: cpp: 5,593,980; ansic: 986,873; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,547; xml: 953; cs: 573; fortran: 567
file content (42 lines) | stat: -rw-r--r-- 1,698 bytes parent folder | download | duplicates (14)
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
// RUN: %clang_cc1 -triple %itanium_abi_triple -verify %s
// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++98 | FileCheck %s --check-prefix=CHECK-CXX98
// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++11 | FileCheck %s --check-prefix=CHECK-CXX11
// expected-no-diagnostics

#if __cplusplus >= 201103L
// CHECK-CXX11: @_ZZ15InitRefWithListvE1r = internal constant i32* @_ZGRZ15InitRefWithListvE1r_
// CHECK-CXX11: @_ZGRZ15InitRefWithListvE1r_ = internal constant i32 123
int InitRefWithList() { static const int &r = {123}; return r; }
#endif

struct XPTParamDescriptor {};
struct nsXPTParamInfo {
  nsXPTParamInfo(const XPTParamDescriptor& desc);
};
void a(XPTParamDescriptor *params) {
  const nsXPTParamInfo& paramInfo = params[0];
}

// CodeGen of reference initialized const arrays.
namespace PR5911 {
  template <typename T, int N> int f(const T (&a)[N]) { return N; }
  int iarr[] = { 1 };
  int test() { return f(iarr); }
}

// radar 7574896
struct Foo { int foo; };
Foo& ignoreSetMutex = *(new Foo);

// Binding to a bit-field that requires a temporary. 
struct { int bitfield : 3; } s = { 3 };
const int &s2 = s.bitfield;

// In C++98, this forms a reference to itself. In C++11 onwards, this performs
// copy-construction.
struct SelfReference { SelfReference &r; };
extern SelfReference self_reference_1;
SelfReference self_reference_2 = {self_reference_1};
// CHECK-CXX98: @self_reference_2 = {{.*}}global %[[SELF_REF:.*]] { %[[SELF_REF]]* @self_reference_1 }
// CHECK-CXX11: @self_reference_2 = {{(dso_local )?}}global %[[SELF_REF:.*]] zeroinitializer
// CHECK-CXX11: call {{.*}}memcpy{{.*}} @self_reference_2 {{.*}} @self_reference_1