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