1*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O3 %s -o %t && \
2*d21b3d34SFangrui Song // RUN:     not %run %t >%t.out 2>&1
3*d21b3d34SFangrui Song // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%short-stack --check-prefix=CHECK-STACK < %t.out
4*d21b3d34SFangrui Song 
5*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -DHEAP=1 -O3 %s -o %t && \
6*d21b3d34SFangrui Song // RUN:     not %run %t >%t.out 2>&1
7*d21b3d34SFangrui Song // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%short-stack --check-prefix=CHECK-HEAP < %t.out
8*d21b3d34SFangrui Song 
9*d21b3d34SFangrui Song 
10*d21b3d34SFangrui Song // RUN: %clangxx_msan -mllvm -msan-instrumentation-with-call-threshold=0 -fsanitize-memory-track-origins=2 -O3 %s -o %t && \
11*d21b3d34SFangrui Song // RUN:     not %run %t >%t.out 2>&1
12*d21b3d34SFangrui Song // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%short-stack --check-prefix=CHECK-STACK < %t.out
13*d21b3d34SFangrui Song 
14*d21b3d34SFangrui Song // RUN: %clangxx_msan -mllvm -msan-instrumentation-with-call-threshold=0 -fsanitize-memory-track-origins=2 -DHEAP=1 -O3 %s -o %t && \
15*d21b3d34SFangrui Song // RUN:     not %run %t >%t.out 2>&1
16*d21b3d34SFangrui Song // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-HEAP < %t.out
17*d21b3d34SFangrui Song 
18*d21b3d34SFangrui Song #include <stdio.h>
19*d21b3d34SFangrui Song 
20*d21b3d34SFangrui Song volatile int x, y;
21*d21b3d34SFangrui Song 
22*d21b3d34SFangrui Song __attribute__((noinline))
fn_g(int a)23*d21b3d34SFangrui Song void fn_g(int a) {
24*d21b3d34SFangrui Song   x = a;
25*d21b3d34SFangrui Song }
26*d21b3d34SFangrui Song 
27*d21b3d34SFangrui Song __attribute__((noinline))
fn_f(int a)28*d21b3d34SFangrui Song void fn_f(int a) {
29*d21b3d34SFangrui Song   fn_g(a);
30*d21b3d34SFangrui Song }
31*d21b3d34SFangrui Song 
32*d21b3d34SFangrui Song __attribute__((noinline))
fn_h()33*d21b3d34SFangrui Song void fn_h() {
34*d21b3d34SFangrui Song   y = x;
35*d21b3d34SFangrui Song }
36*d21b3d34SFangrui Song 
main(int argc,char * argv[])37*d21b3d34SFangrui Song int main(int argc, char *argv[]) {
38*d21b3d34SFangrui Song #ifdef HEAP
39*d21b3d34SFangrui Song   int * volatile zz = new int;
40*d21b3d34SFangrui Song   int z = *zz;
41*d21b3d34SFangrui Song #else
42*d21b3d34SFangrui Song   int volatile z;
43*d21b3d34SFangrui Song #endif
44*d21b3d34SFangrui Song   fn_f(z);
45*d21b3d34SFangrui Song   fn_h();
46*d21b3d34SFangrui Song   return y;
47*d21b3d34SFangrui Song }
48*d21b3d34SFangrui Song 
49*d21b3d34SFangrui Song // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
50*d21b3d34SFangrui Song // CHECK: {{#0 .* in main.*chained_origin.cpp:}}[[@LINE-4]]
51*d21b3d34SFangrui Song 
52*d21b3d34SFangrui Song // CHECK: Uninitialized value was stored to memory at
53*d21b3d34SFangrui Song // CHECK-FULL-STACK: {{#0 .* in fn_h.*chained_origin.cpp:}}[[@LINE-19]]
54*d21b3d34SFangrui Song // CHECK-FULL-STACK: {{#1 .* in main.*chained_origin.cpp:}}[[@LINE-9]]
55*d21b3d34SFangrui Song // CHECK-SHORT-STACK: {{#0 .* in fn_h.*chained_origin.cpp:}}[[@LINE-21]]
56*d21b3d34SFangrui Song 
57*d21b3d34SFangrui Song // CHECK: Uninitialized value was stored to memory at
58*d21b3d34SFangrui Song // CHECK-FULL-STACK: {{#0 .* in fn_g.*chained_origin.cpp:}}[[@LINE-34]]
59*d21b3d34SFangrui Song // CHECK-FULL-STACK: {{#1 .* in fn_f.*chained_origin.cpp:}}[[@LINE-30]]
60*d21b3d34SFangrui Song // CHECK-FULL-STACK: {{#2 .* in main.*chained_origin.cpp:}}[[@LINE-16]]
61*d21b3d34SFangrui Song // CHECK-SHORT-STACK: {{#0 .* in fn_g.*chained_origin.cpp:}}[[@LINE-37]]
62*d21b3d34SFangrui Song 
63*d21b3d34SFangrui Song // CHECK-STACK: Uninitialized value was created by an allocation of 'z' in the stack frame of function 'main'
64*d21b3d34SFangrui Song // CHECK-STACK: {{#0 .* in main.*chained_origin.cpp:}}[[@LINE-27]]
65*d21b3d34SFangrui Song 
66*d21b3d34SFangrui Song // CHECK-HEAP: Uninitialized value was created by a heap allocation
67*d21b3d34SFangrui Song // CHECK-HEAP: {{#1 .* in main.*chained_origin.cpp:}}[[@LINE-28]]
68