File: sanitize-dtor-tail-call.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (22 lines) | stat: -rw-r--r-- 876 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
// Test -fsanitize-memory-use-after-dtor
// RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s --implicit-check-not="call void @__sanitizer_"
// RUN: %clang_cc1 -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s --implicit-check-not="call void @__sanitizer_"

struct Simple {
  int x_;
  Simple() {
    x_ = 5;
  }
  ~Simple() {
    x_ += 1;
  }
};

Simple s;
// Simple internal member is poisoned by compiler-generated dtor
// CHECK: define {{.*}}SimpleD2Ev{{.*}} [[ATTRIBUTE:#[0-9]+]]
// CHECK: call void @__sanitizer_dtor_callback_fields(
// CHECK: ret void

// Destructor does not emit any tail calls
// CHECK: attributes [[ATTRIBUTE]] = {{.*}}"disable-tail-calls"="true"