File: dr1748.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 (35 lines) | stat: -rw-r--r-- 1,301 bytes parent folder | download | duplicates (28)
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
// RUN: %clang_cc1 -std=c++98 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s
// RUN: %clang_cc1 -std=c++11 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s
// RUN: %clang_cc1 -std=c++14 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s
// RUN: %clang_cc1 -std=c++1z %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s

// dr1748: 3.7

// FIXME: __SIZE_TYPE__ expands to 'long long' on some targets.
__extension__ typedef __SIZE_TYPE__ size_t;

void *operator new(size_t, void *);
void *operator new[](size_t, void *);

struct X { X(); };

// The reserved placement allocation functions get inlined
// even if we can't see their definitions. They do not
// perform a null check.

// CHECK-LABEL: define {{.*}} @_Z1fPv(
// CHECK-NOT: call
// CHECK-NOT: icmp{{.*}} null
// CHECK-NOT: br i1
// CHECK: call void @_ZN1XC1Ev(
// CHECK: }
X *f(void *p) { return new (p) X; }

// CHECK-LABEL: define {{.*}} @_Z1gPv(
// CHECK-NOT: call
// CHECK-NOT: icmp{{.*}} null
// CHECK-NOT: br i1
// CHECK: call void @_ZN1XC1Ev(
// CHECK: br i1
// CHECK: }
X *g(void *p) { return new (p) X[5]; }