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// RUN: %clangxx_msan -O0 -std=c++11 -g %s -o %t
// RUN: %run %t _ 2>&1 | FileCheck %s --check-prefix=CLEAN
// RUN: not %run %t A 2>&1 | FileCheck %s --check-prefix=A
// RUN: not %run %t B 2>&1 | FileCheck %s --check-prefix=B
#include <assert.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <sanitizer/msan_interface.h>
int main(int argc, char **argv) {
char T = argv[1][0];
struct timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 1000;
int res = ppoll(nullptr, 0, &ts, nullptr);
assert(res == 0);
if (T == 'A') {
__msan_poison(&ts.tv_sec, sizeof(ts.tv_sec));
ppoll(nullptr, 0, &ts, nullptr);
// A: use-of-uninitialized-value
}
// A-NOT: ==1
// B: ==1
fprintf(stderr, "==1\n");
sigset_t sig;
if (T != 'B')
sigemptyset(&sig);
ppoll(nullptr, 0, &ts, &sig);
// B: use-of-uninitialized-value
// B-NOT: ==2
// CLEAN: ==2
fprintf(stderr, "==2\n");
return 0;
}
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