vendor/clang/clang-trunk-r321017

1 files changed, 19 insertions, 0 deletions

diff --git a/test/Analysis/ptr-arith.cpp b/test/Analysis/ptr-arith.cpp
index e1860f4268e0..1eec83c643e1 100644
--- a/test/Analysis/ptr-arith.cpp
+++ b/test/Analysis/ptr-arith.cpp
@@ -98,3 +98,22 @@ void checkMultiDimansionalArray() {
   int a[5][5];
    *(*(a+1)+2) = 2;
 }
+
+unsigned ptrSubtractionNoCrash(char *Begin, char *End) {
+  auto N = End - Begin;
+  if (Begin)
+    return 0;
+  return N;
+}
+
+// Bug 34309
+bool ptrAsIntegerSubtractionNoCrash(__UINTPTR_TYPE__ x, char *p) {
+  __UINTPTR_TYPE__ y = (__UINTPTR_TYPE__)p - 1;
+  return y == x;
+}
+
+// Bug 34374
+bool integerAsPtrSubtractionNoCrash(char *p, __UINTPTR_TYPE__ m) {
+  auto n = p - reinterpret_cast<char*>((__UINTPTR_TYPE__)1);
+  return n == m;
+}