| // Test that on the second entry to a function the origins are still right. |
| |
| // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| |
| #include <stdlib.h> |
| |
| extern "C" |
| int f(int depth) { |
| if (depth) return f(depth - 1); |
| |
| int x; |
| int *volatile p = &x; |
| return *p; |
| } |
| |
| int main(int argc, char **argv) { |
| return f(1); |
| // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
| // CHECK: {{#0 0x.* in main .*stack-origin2.cc:}}[[@LINE-2]] |
| |
| // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'f' |
| // CHECK-ORIGINS: {{#0 0x.* in f .*stack-origin2.cc:}}[[@LINE-14]] |
| |
| // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin2.cc:.* main}} |
| } |
