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// RUN: %clang_asan %s -o %t
// RUN: %env_asan_opts=intercept_strcmp=false %run %t 2>&1
// RUN: %env_asan_opts=intercept_strcmp=true not %run %t 2>&1 | FileCheck %s
// RUN: not %run %t 2>&1 | FileCheck %s
#include <assert.h>
#include <stdlib.h>
#include <string.h>
int main(int argc, char **argv) {
char s1[] = "abcd";
char s2[] = "1234";
assert(strcmp(s1, s2) > 0);
assert(strcmp(s1 - 1, s2));
// CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-underflow on address}}
// CHECK: READ of size 1
return 0;
}