forked from OSchip/llvm-project
37 lines
934 B
C++
37 lines
934 B
C++
// 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 -O3 %s -o %t && not %run %t >%t.out 2>&1
|
|
// RUN: FileCheck %s < %t.out && FileCheck %s < %t.out
|
|
|
|
// Test origin propagation through insertvalue IR instruction.
|
|
// REQUIRES: stable-runtime
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
|
|
struct mypair {
|
|
int64_t x;
|
|
int y;
|
|
};
|
|
|
|
mypair my_make_pair(int64_t x, int y) {
|
|
mypair p;
|
|
p.x = x;
|
|
p.y = y;
|
|
return p;
|
|
}
|
|
|
|
int main() {
|
|
int64_t * volatile p = new int64_t;
|
|
mypair z = my_make_pair(*p, 0);
|
|
if (z.x)
|
|
printf("zzz\n");
|
|
// CHECK: MemorySanitizer: use-of-uninitialized-value
|
|
// CHECK: {{in main .*insertvalue_origin.cc:}}[[@LINE-3]]
|
|
|
|
// CHECK: Uninitialized value was created by a heap allocation
|
|
// CHECK: {{in main .*insertvalue_origin.cc:}}[[@LINE-8]]
|
|
delete p;
|
|
return 0;
|
|
}
|