From: David Bolvansky <david.bolvansky@gmail.com>
Date: Fri, 6 Sep 2019 16:18:18 +0000 (+0000)
Subject: [NFC] Added new tests for r371222
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7e836a876a5acbe7672737af1edb72c245b4ed50;p=clang

[NFC] Added new tests for r371222


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@371223 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Sema/div-sizeof-array.cpp b/test/Sema/div-sizeof-array.cpp
new file mode 100644
index 0000000000..f1a365f676
--- /dev/null
+++ b/test/Sema/div-sizeof-array.cpp
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 %s -verify -Wsizeof-array-div -fsyntax-only
+
+template <typename Ty, int N>
+int f(Ty (&Array)[N]) {
+  return sizeof(Array) / sizeof(Ty); // Should not warn
+}
+
+typedef int int32;
+
+void test(void) {
+  int arr[12]; // expected-note 2 {{array 'arr' declared here}}
+  unsigned long long arr2[4]; // expected-note {{array 'arr2' declared here}}
+  int *p = &arr[0];
+  int a1 = sizeof(arr) / sizeof(*arr);
+  int a2 = sizeof arr / sizeof p;       // expected-warning {{expresion will return the incorrect number of elements in the array; the array element type is 'int', not 'int *'}}
+  int a4 = sizeof arr2 / sizeof p;      // expected-warning {{expresion will return the incorrect number of elements in the array; the array element type is 'unsigned long long', not 'int *'}}
+  int a5 = sizeof(arr) / sizeof(short); // expected-warning {{expresion will return the incorrect number of elements in the array; the array element type is 'int', not 'short'}}
+  int a6 = sizeof(arr) / sizeof(int32);
+  const char arr3[2] = "A";
+  int a7 = sizeof(arr3) / sizeof(char);
+
+  int arr4[10][12];
+  int b1 = sizeof(arr4) / sizeof(arr2[12]);
+  int b2 = sizeof(arr4) / sizeof(int *);
+  int b3 = sizeof(arr4) / sizeof(short *);
+}