forked from OSchip/llvm-project
22 lines
797 B
C++
22 lines
797 B
C++
// Check that 8-byte store updates origin for the full store range.
|
|
// 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 < %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 < %t.out
|
|
|
|
#include <sanitizer/msan_interface.h>
|
|
|
|
int main() {
|
|
uint64_t *volatile p = new uint64_t;
|
|
uint64_t *volatile q = new uint64_t;
|
|
*p = *q;
|
|
char *z = (char *)p;
|
|
return z[6];
|
|
// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
|
|
// CHECK: in main {{.*}}origin-store-long.cc:[[@LINE-2]]
|
|
|
|
// CHECK: Uninitialized value was created by a heap allocation
|
|
// CHECK: in main {{.*}}origin-store-long.cc:[[@LINE-8]]
|
|
}
|
|
|