compiler-rt/test/memprof/TestCases/test_malloc_load_store.c

   1 // Check profile with a single malloc call and set of loads and stores. Ensures
   2 // we get the same profile regardless of whether the memory is deallocated
   3 // before exit.
   4
   5 // RUN: %clang_memprof -O0 %s -o %t
   6 // RUN: %env_memprof_opts=print_text=true:log_path=stderr %run %t 2>&1 | FileCheck %s
   7
   8 // RUN: %clang_memprof -DFREE -O0 %s -o %t
   9 // RUN: %env_memprof_opts=print_text=true:log_path=stderr %run %t 2>&1 | FileCheck %s
  10
  11 // This is actually:
  12 //  Memory allocation stack id = STACKID
  13 //   alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
  14 // but we need to look for them in the same CHECK to get the correct STACKID.
  15 // CHECK:  Memory allocation stack id = [[STACKID:[0-9]+]]{{[[:space:]].*}}alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
  16 // CHECK-NEXT:  access_count (ave/min/max): 20.00 / 20 / 20
  17 // CHECK-NEXT:  lifetime (ave/min/max): [[AVELIFETIME:[0-9]+]].00 / [[AVELIFETIME]] / [[AVELIFETIME]]
  18 // CHECK-NEXT:  num migrated: {{[0-1]}}, num lifetime overlaps: 0, num same alloc cpu: 0, num same dealloc_cpu: 0
  19 // CHECK: Stack for id [[STACKID]]:
  20 // CHECK-NEXT: #0 {{.*}} in {{.*}}malloc
  21 // CHECK-NEXT: #1 {{.*}} in main {{.*}}:[[@LINE+6]]
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 int main() {
  27   int *p = (int *)malloc(10 * sizeof(int));
  28   for (int i = 0; i < 10; i++)
  29     p[i] = i;
  30   int j = 0;
  31   for (int i = 0; i < 10; i++)
  32     j += p[i];
  33 #ifdef FREE
  34   free(p);
  35 #endif
  36
  37   return 0;
  38 }