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