File: microsoft-new.cpp

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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-compatibility %s -emit-llvm -o - | FileCheck %s

#include <stddef.h>

struct arbitrary_t {} arbitrary;
void *operator new(size_t size, arbitrary_t);

struct arbitrary2_t {} arbitrary2;
void *operator new[](size_t size, arbitrary2_t);

namespace PR13164 {
  void f() {
	// MSVC will fall back on the non-array operator new.
    void *a;
    int *p = new(arbitrary) int[4];
    // CHECK: call i8* @"\01??2@YAPAXIUarbitrary_t@@@Z"(i32 16, %struct.arbitrary_t*
  }

  struct S {
    void *operator new[](size_t size, arbitrary_t);
  };

  void g() {
    S *s = new(arbitrary) S[2];
    // CHECK: call i8* @"\01??_US@PR13164@@SAPAXIUarbitrary_t@@@Z"(i32 2, %struct.arbitrary_t*
    S *s1 = new(arbitrary) S;
    // CHECK: call i8* @"\01??2@YAPAXIUarbitrary_t@@@Z"(i32 1, %struct.arbitrary_t*
  }

  struct T {
    void *operator new(size_t size, arbitrary2_t);
  };

  void h() {
    // This should still call the global operator new[].
    T *t = new(arbitrary2) T[2];
    // CHECK: call i8* @"\01??_U@YAPAXIUarbitrary2_t@@@Z"(i32 2, %struct.arbitrary2_t*
  }
}