40 lines
909 B
C++
40 lines
909 B
C++
// RUN: %clangxx_asan -O0 -std=c++11 %s -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O1 -std=c++11 %s -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O2 -std=c++11 %s -o %t && %run %t 2>&1 | FileCheck %s
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// Test that we do not detect false buffer overflows cased by optimization when
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// when local variable replaced by a smaller global constant.
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// https://bugs.llvm.org/show_bug.cgi?id=33372
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#include <stdio.h>
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#include <string.h>
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struct A { int x, y, z; };
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struct B { A a; /*gap*/ long b; };
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B *bb;
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void test1() {
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A a1 = {1, 1, 2};
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B b1 = {a1, 6};
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bb = new B(b1);
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}
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const char KKK[] = {1, 1, 2};
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char bbb[100000];
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void test2() {
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char cc[sizeof(bbb)];
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memcpy(cc, KKK , sizeof(KKK));
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memcpy(bbb, cc, sizeof(bbb));
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}
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int main(int argc, char *argv[]) {
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test1();
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test2();
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printf("PASSED");
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return 0;
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}
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// CHECK-NOT: ERROR: AddressSanitizer
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// CHECK: PASSED
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