1 files changed, 48 insertions, 0 deletions
diff --git a/test/asan/TestCases/invalid-pointer-pairs-subtract-errors.cc b/test/asan/TestCases/invalid-pointer-pairs-subtract-errors.cc
new file mode 100644
index 000000000000..546f61f8184d
--- /dev/null
+++ b/test/asan/TestCases/invalid-pointer-pairs-subtract-errors.cc
@@ -0,0 +1,48 @@
+// RUN: %clangxx_asan -O0 %s -o %t -mllvm -asan-detect-invalid-pointer-pair
+
+// RUN: %env_asan_opts=detect_invalid_pointer_pairs=1:halt_on_error=0 %run %t 2>&1 | FileCheck %s
+
+#include <assert.h>
+#include <stdlib.h>
+
+int foo(char *p, char *q) {
+  return p - q;
+}
+
+char global1[100] = {}, global2[100] = {};
+
+int main() {
+  // Heap allocated memory.
+  char *heap1 = (char *)malloc(42);
+  char *heap2 = (char *)malloc(42);
+
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(heap1, heap2);
+
+  // Global variables.
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(&global1[0], &global2[10]);
+
+  // Stack variables.
+  char stack1, stack2;
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(&stack1, &stack2);
+
+  // Mixtures.
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(heap1, &stack1);
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(heap1, &global1[0]);
+  // CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
+  // CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-subtract-errors.cc:[[@LINE+1]]
+  foo(&stack1, &global1[0]);
+
+  free(heap1);
+  free(heap2);
+  return 0;
+}