forked from OSchip/llvm-project
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
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// RUN: %clangxx_msan %s -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %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 not %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 not %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 -fsanitize-memory-track-origins -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-ORIGINS < %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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x_ += 1;
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}
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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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Simple *s = new(&buf) Simple();
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s->~Simple();
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return s->x_;
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// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK: {{#0 0x.* in main.*use-after-dtor.cc:}}[[@LINE-3]]
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// CHECK-ORIGINS: Memory was marked as uninitialized
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// CHECK-ORIGINS: {{#0 0x.* in __sanitizer_dtor_callback}}
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// CHECK-ORIGINS: {{#1 0x.* in Simple::~Simple}}
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// CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*main}}
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}
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