compiler-rt/test/memprof/TestCases/unaligned_loads_and_stores.cpp

   1 // RUN: %clangxx_memprof -O0 %s -o %t && %env_memprof_opts=print_text=true:log_path=stderr %run %t 2>&1 | FileCheck %s
   2
   3 // This is actually:
   4 //  Memory allocation stack id = STACKID
   5 //    alloc_count 1, size (ave/min/max) 128.00 / 128 / 128
   6 // but we need to look for them in the same CHECK to get the correct STACKID.
   7 // CHECK:      Memory allocation stack id = [[STACKID:[0-9]+]]{{[[:space:]].*}}alloc_count 1, size (ave/min/max) 128.00 / 128 / 128
   8 // CHECK-NEXT:   access_count (ave/min/max): 22.00 / 22 / 22
   9
  10 #include <sanitizer/memprof_interface.h>
  11
  12 #include <stdlib.h>
  13 #include <string.h>
  14 int main(int argc, char **argv) {
  15   // CHECK:      Stack for id [[STACKID]]:
  16   // CHECK-NEXT:     #0 {{.*}} in operator new[](unsigned long)
  17   // CHECK-NEXT:     #1 {{.*}} in main {{.*}}:[[@LINE+1]]
  18   char *x = new char[128];
  19   memset(x, 0xab, 128);
  20   __sanitizer_unaligned_load16(x + 15);
  21   __sanitizer_unaligned_load32(x + 15);
  22   __sanitizer_unaligned_load64(x + 15);
  23
  24   __sanitizer_unaligned_store16(x + 15, 0);
  25   __sanitizer_unaligned_store32(x + 15, 0);
  26   __sanitizer_unaligned_store64(x + 15, 0);
  27
  28   delete[] x;
  29   return 0;
  30 }