test/msan/keep-going.cc

   1 // RUN: %clangxx_msan -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
   2 // FileCheck %s <%t.out
   3 // RUN: %clangxx_msan -m64 -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
   4 // FileCheck %s <%t.out
   5 // RUN: %clangxx_msan -m64 -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
   6 // FileCheck %s <%t.out
   7
   8 // RUN: %clangxx_msan -m64 -mllvm -msan-keep-going=1 -O0 %s -o %t && not %run %t >%t.out 2>&1
   9 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
  10 // RUN: %clangxx_msan -m64 -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
  11 // FileCheck %s <%t.out
  12 // RUN: %clangxx_msan -m64 -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
  13 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
  14 // RUN: %clangxx_msan -m64 -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=halt_on_error=1 not %run %t >%t.out 2>&1
  15 // FileCheck %s <%t.out
  16 // RUN: %clangxx_msan -m64 -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=halt_on_error=0 not %run %t >%t.out 2>&1
  17 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
  18
  19 // Test behaviour of -mllvm -msan-keep-going and MSAN_OPTIONS=keep_going.
  20 // -mllvm -msan-keep-going provides the default value of keep_going flag; value
  21 // of 1 can be overwritten by MSAN_OPTIONS, value of 0 can not.
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 int main(int argc, char **argv) {
  27   char *volatile x = (char*)malloc(5 * sizeof(char));
  28   if (x[0])
  29     exit(0);
  30   fprintf(stderr, "Done\n");
  31   // CHECK-NOT: Done
  32   // CHECK-KEEP-GOING: Done
  33   return 0;
  34 }