forked from OSchip/llvm-project
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
// RUN: %clangxx_msan %s -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out
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// RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out
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// RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out
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// RUN: %clangxx_msan %s -fsanitize=memory -fno-sanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out
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// RUN: %clangxx_msan -fsanitize=memory -fsanitize-memory-use-after-dtor %s -o %t && MSAN_OPTIONS=poison_in_dtor=0 %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out
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#include <sanitizer/msan_interface.h>
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#include <assert.h>
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#include <stdio.h>
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#include <new>
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struct Simple {
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int x_;
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Simple() {
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x_ = 5;
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}
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~Simple() { }
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};
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int main() {
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unsigned long buf[1];
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assert(sizeof(Simple) <= sizeof(buf));
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// The placement new operator forces the object to be constructed in the
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// memory location &buf. Since objects made in this way must be explicitly
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// destroyed, there are no implicit calls inserted that would interfere with
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// test behavior.
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Simple *s = new(&buf) Simple();
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s->~Simple();
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if (__msan_test_shadow(s, sizeof(*s)) != -1)
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printf("s is poisoned\n");
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else
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printf("s is not poisoned\n");
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// CHECK: s is poisoned
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// CHECK-NO-FLAG: s is not poisoned
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return 0;
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}
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