1// RUN: %clangxx_msan -m64 -O0 %s -o %t && not %t >%t.out 2>&1 2// RUN: FileCheck %s < %t.out 3// RUN: %clangxx_msan -m64 -O1 %s -o %t && not %t >%t.out 2>&1 4// RUN: FileCheck %s < %t.out 5// RUN: %clangxx_msan -m64 -O2 %s -o %t && not %t >%t.out 2>&1 6// RUN: FileCheck %s < %t.out 7// RUN: %clangxx_msan -m64 -O3 %s -o %t && not %t >%t.out 2>&1 8// RUN: FileCheck %s < %t.out 9 10// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 %s -o %t && not %t >%t.out 2>&1 11// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out 12// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O1 %s -o %t && not %t >%t.out 2>&1 13// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out 14// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O2 %s -o %t && not %t >%t.out 2>&1 15// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out 16// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O3 %s -o %t && not %t >%t.out 2>&1 17// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out 18 19#include <stdlib.h> 20int main(int argc, char **argv) { 21 int x; 22 int *volatile p = &x; 23 if (*p) 24 exit(0); 25 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value 26 // CHECK: {{#0 0x.* in main .*stack-origin.cc:}}[[@LINE-3]] 27 28 // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main' 29 30 // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin.cc:.* main}} 31 return 0; 32} 33