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> 20 int main(int argc, char **argv) { 21 char *volatile x = (char*)malloc(5 * sizeof(char)); 22 if (*x) 23 exit(0); 24 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value 25 // CHECK: {{#0 0x.* in main .*heap-origin.cc:}}[[@LINE-3]] 26 27 // CHECK-ORIGINS: Uninitialized value was created by a heap allocation 28 // CHECK-ORIGINS: {{#0 0x.* in .*malloc}} 29 // CHECK-ORIGINS: {{#1 0x.* in main .*heap-origin.cc:}}[[@LINE-8]] 30 31 // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*heap-origin.cc:.* main}} 32 return 0; 33 } 34
