compiler-rt/test/msan/stack-origin.cpp

   1 // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
   2 // RUN: FileCheck %s < %t.out
   3 // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1
   4 // RUN: FileCheck %s < %t.out
   5 // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1
   6 // RUN: FileCheck %s < %t.out
   7 // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1
   8 // RUN: FileCheck %s < %t.out
   9
  10 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1
  11 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
  12 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1
  13 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
  14 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1
  15 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
  16 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1
  17 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
  18
  19 // RUN: %clangxx_msan -fsanitize-memory-track-origins -mllvm -msan-print-stack-names=0 -O0 %s -o %t && not %run %t >%t.out 2>&1
  20 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-LEAN < %t.out
  21
  22 #include <stdlib.h>
  23 int main(int argc, char **argv) {
  24   int x;
  25   int *volatile p = &x;
  26   return *p;
  27   // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
  28   // CHECK: {{#0 0x.* in main .*stack-origin.cpp:}}[[@LINE-2]]
  29
  30   // ORIGINS-FAT: Uninitialized value was created by an allocation of 'x' in the stack frame
  31   // ORIGINS-LEAN: Uninitialized value was created in the stack frame
  32   // CHECK-ORIGINS: {{#0 0x.* in main .*stack-origin.cpp:}}[[@LINE-8]]
  33
  34   // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin.cpp:.* main}}
  35 }