File: wasm-sanitize-vptr.cpp

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.0-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,235,796 kB
  • sloc: cpp: 7,617,614; ansic: 1,433,901; asm: 1,058,726; python: 252,096; f90: 94,671; objc: 70,753; lisp: 42,813; pascal: 18,401; sh: 10,032; ml: 5,111; perl: 4,720; awk: 3,523; makefile: 3,401; javascript: 2,272; xml: 892; fortran: 770
file content (20 lines) | stat: -rw-r--r-- 480 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// RUN: %clang_cc1 -std=c++11 -fsanitize=vptr -emit-llvm %s -o - -triple wasm32-unknown-emscripten | FileCheck %s

struct S {
  virtual ~S() {}
  int a;
};

struct T : S {
  int b;
};

// CHECK-LABEL: @_Z15bad_static_castv
void bad_static_cast() {
  S s;
  // CHECK: br i1 %[[NONNULL:.*]], label %[[CONT:.*]], label %[[MISS:.*]], !prof
  // CHECK: [[MISS]]:
  // CHECK: call void @__ubsan_handle_dynamic_type_cache_miss_abort
  // CHECK: [[CONT]]:
  T &r = static_cast<T &>(s);
}