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1 // RUN: %clang_cc1 -triple i686-pc-win32 -fms-compatibility %s -emit-llvm -o - | FileCheck %s
2 
3 #include <stddef.h>
4 
5 struct arbitrary_t {} arbitrary;
6 void *operator new(size_t size, arbitrary_t);
7 
8 struct arbitrary2_t {} arbitrary2;
9 void *operator new[](size_t size, arbitrary2_t);
10 
11 namespace PR13164 {
f()12   void f() {
13 	// MSVC will fall back on the non-array operator new.
14     void *a;
15     int *p = new(arbitrary) int[4];
16     // CHECK: call i8* @"\01??2@YAPAXIUarbitrary_t@@@Z"(i32 16, %struct.arbitrary_t*
17   }
18 
19   struct S {
20     void *operator new[](size_t size, arbitrary_t);
21   };
22 
g()23   void g() {
24     S *s = new(arbitrary) S[2];
25     // CHECK: call i8* @"\01??_US@PR13164@@SAPAXIUarbitrary_t@@@Z"(i32 2, %struct.arbitrary_t*
26     S *s1 = new(arbitrary) S;
27     // CHECK: call i8* @"\01??2@YAPAXIUarbitrary_t@@@Z"(i32 1, %struct.arbitrary_t*
28   }
29 
30   struct T {
31     void *operator new(size_t size, arbitrary2_t);
32   };
33 
h()34   void h() {
35     // This should still call the global operator new[].
36     T *t = new(arbitrary2) T[2];
37     // CHECK: call i8* @"\01??_U@YAPAXIUarbitrary2_t@@@Z"(i32 2, %struct.arbitrary2_t*
38   }
39 }
40