File: ubsan-nonnull.m

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (48 lines) | stat: -rw-r--r-- 1,709 bytes parent folder | download | duplicates (9)
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
47
48
// RUN: %clang_cc1 -x objective-c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=nonnull-attribute %s -o - -w | FileCheck %s

@interface A

-(void) one_arg: (__attribute__((nonnull)) int *) arg1;

-(void) varargs: (__attribute__((nonnull)) int *) arg1, ...;

+(void) clsmethod: (__attribute__((nonnull)) int *) arg1;

@end

@implementation A

// CHECK-LABEL: define internal void @"\01-[A one_arg:]"
// CHECK-SAME: i32* nonnull
-(void) one_arg: (__attribute__((nonnull)) int *) arg1 {}

// CHECK-LABEL: define internal void @"\01-[A varargs:]"
// CHECK-SAME: i32* nonnull
-(void) varargs: (__attribute__((nonnull)) int *) arg1, ... {}

// CHECK-LABEL: define internal void @"\01+[A clsmethod:]"
// CHECK-SAME: i32* nonnull
+(void) clsmethod: (__attribute__((nonnull)) int *) arg1 {}

@end

// CHECK-LABEL: define void @call_A
void call_A(A *a, int *p) {
  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P1:%.*]], null, !nosanitize
  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P1]])
  [a one_arg: p];

  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P2:%.*]], null, !nosanitize
  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P2]], {{.*}})
  [a varargs: p, p];

  // CHECK: [[ICMP:%.*]] = icmp ne i32* [[P3:%.*]], null, !nosanitize
  // CHECK: br i1 [[ICMP]], {{.*}}, !nosanitize
  // CHECK: call void @__ubsan_handle_nonnull_arg{{.*}} !nosanitize
  // CHECK: call void {{.*}} @objc_msgSend {{.*}} ({{.*}}, i32* [[P3]])
  [A clsmethod: p];
}