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 char *volatile x = (char*)malloc(5 * sizeof(char)); 22 return *x; 23 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value 24 // CHECK: {{#0 0x.* in main .*heap-origin.cc:}}[[@LINE-2]] 25 26 // CHECK-ORIGINS: Uninitialized value was created by a heap allocation 27 // CHECK-ORIGINS: {{#0 0x.* in .*malloc}} 28 // CHECK-ORIGINS: {{#1 0x.* in main .*heap-origin.cc:}}[[@LINE-7]] 29 30 // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*heap-origin.cc:.* main}} 31 } 32
